The first M-10 and M-30  frame tents were developed for the Russian Ministry of Defence and EMERCOM in 1995 to replace the outdated tent models UST-56 and USB-56.

Their widespread use began during the first Chechen war. The tents were easy to assemble, didn't take much space and provided comfort for soldiers and refugees. Therefore, the government included them in their list of procured goods.  М-10 and М-30 frame tents could accommodate 10-30 people respectively, either on the floor or on an air bed.

As a rule M-10 and M-30 modular tents are used for soldiers to live in on a long-term basis in field conditions at military bases, as well as for temporary purposes during seasonal trainings and gatherings. The tents are unique in terms of their functional characteristics and have no foreign equivalent. The tent materials are selected to make the army tents as comfortable as possible at extremely low and high temperatures without using expensive air-conditioning or heating units. The frame of the army tents is resistant to strong winds and to maximum snow loads typical for our climate. The roof and groundsheet are made from waterproof fabric using heat welding, making the seams connecting the canvases sealed tight. The side and end walls are made from waterproof canvas, therefore, the tent breathes and is protected from heavy rainfall.

Field equipment should be provided to make a long stay comfortable. As beds, bedside tables, stoves, etc, take up space, the tent's capacity is reduced. Therefore, the Russian Ministry of Defence required new tents for 10 and 30 people, where soldiers could sleep on bunk beds, store their things in bedside tables, etc. The area of the M-10 and M-30 tents had to be increased to accommodate the necessary furniture.

The Russian Ministry of Defence supply department invited all the leading Russian producers of tents and tent structures to share their experience and to develop new tent models. Although the M-10 and M-30 tents changed greatly (increased size, thickness of the frame and tent materials) the names of the Russian Ministry of Defence tents were fixed as 2011 M-10 and M-30 tents. Therefore, the M-10 and M-30 tents are now army tents with dimensions of 5 m х 6 m and 7 m х 10 m. EMERCOM Russia decided to procure the 1995 M-10 and M-30 tents as the technical features of these tents fully satisfied the ministry's needs. The name was already taken by the Ministry of Defence, therefore these tent models are named in EMERCOM as M-10 type and M-30 type tents, i.e. tents similar to M-10 and M-30. For the sake of convenience, our company calls type M-10 and M-30 type tents  Pamir-10 and Pamir-30.

Live comfortably in a tent in winter: myth or reality

As the winter tent is intended for cold weather, it has a number of design features for maintaining heat. Each part of the tent - the shape of the frame, the tent fabric, technical holes - should improve living conditions.

Heating air in field conditions

The winter tent can have heating devices – stoves, fan heaters or just a fire. To install a stove with a chimney vent it is important to have a hole in the tent roof protected by steel sheets. The used fabric should not be flammable and the stove should be at a safe distance from the beds. To evenly heat the tent, you can use a fan heater through a special sleeve in the outer tent. You can light a fire in traditional conicalScandinavian tents. The Tundra and Lavvu range of tents have a hole to maintain the fire and to extract smoke.

Choose a special fabric for winter tents

The main enemies of outdoor winter holidays are low air temperatures and strong winds. Therefore, choose a non-breathable (to stop wind getting in), frost resistant fabric. Thick canvas remains elastic (it won't crack) at any temperature but may let in draughts because of its natural content. Therefore, when you select canvas, you should also order additional insulation walls (like for the M-10 tents). Double-layer PVC coated fabric protects well from frost and strong winds. Additional frost resistant treatment is required at extremely low temperatures (to -50).

What is an effective tent insulation?

The air gap between the tents is the most effective insulator, therefore the main feature of  winter tents is that they are multi-layered. In addition to maintaining the heat regime inside the tent, the inner tent prevents condensation. The best materials to use are ones with a "loose" structure, such as non-woven fabric. For insulation in Arctic regions, a four-layered foil material is used, which reflects the heat inside thetent, creating a "thermos effect".

Protect the tent from snow by strengthening the frame.

As winter tents have to cope with significant snow loads, some parts of the frame can use rectangular section poles instead of rounded elements, like in the М-30 army tents. The reinforcement compensates for the load along the top-down axis. In addition, the winter frame can be additionally strengthened with auxiliary ties (steel cables strung between elements of the structure) and extra end poles. As well as compensating for snow loads, these elements protect the tent from collapsing in strong winds. In regions with heavy snowfall, frameless tents can be used (e.g. UST-56,) or semi-spherical models («Arcticspas»).

Heated floors for winter tents

In winter conditions, the tent floor needs special attention. It should be insulated, which means multi-layered. The upper layer should be a PVC floor. Its edges should be turned upwards (this provides good wind and waterproofing for the tent), and fastened to the outer tent. A layer of plywood should be placed under the upper floor and then polypropylene tiles. A layer of plywood is placed under the insulation. The lowest level is canvas, which prevents the structure from freezing to the ground.

Features of windows in winter

Tent windows can be made from Plexiglass or PVC plastic. Plastic windows are significantly lighter and easier to transport than Plexiglass, but they can bend and crack in the cold. To solve these problems, RPC ORT has developed innovative removable welded plastic windows. Using a high-frequency machine, a cruciform PVC insert is welded into the transparent plastic. This is designed to remove the strain when the plastic bends. In addition, the plastic sheet is placed in the same way in a PVC frame, which has a hole for fixing the window to the window frame. The window not only withstands bending and lower temperatures better, but it is also easily removable for storage or replacement (most tents that are currently produced have windows that are tightly soldered to the inner tent, which prevents airing through the windows, makes it difficult to store them carefully and makes replacing them very time-consuming). You can buy the winter tents from the manufacturer – RPC ORT in Saint Petersburg; tents are delivered throughout Russia and the CIS.

Frame tents are tents which use a rigid structure – metal poles and connectors. There are no central support poles and guy ropes and other fasteners only play a supporting role.  The outer tent is stretched over the frame and the inner tent is attached from the inside. Therefore, the outer shape and interior of the tent determine the shape of its frame. Wood or (for small one to four-person tents) fibreglass can be used as the frame material.

The main advantage is the ease of assembly

The main advantage of a frame tent is how simple and quick it is to assemble. Tent manufacturers try to unify poles and connectors to simplify assembly as much possible. Many parts of the frame can be replaced if lost. You don't need to be an expert to assemble a modern frame tent. In addition, if you are not happy with where you have pitched your tent, you can easily move it to another place without dismantling it. If you have a frameless tent, you will need to know how to mark out the area and install guy ropes (any mistakes made may lead to the tent deforming, losing stability and protection from flowing water). These skills only come with experience, but how much time and nerves will be spent on gaining them? Therefore, if you don't have such experience, choose a frame tent such as the Pamir 10.

Efficient use of interior space

An important advantage of frame tents is the absence of the central pole inside the tent. Therefore, the pole doesn't interfere with placing people inside the tent or hinder emergency evacuation. In frameless tents, the support poles are opposite the entrances and exits and may get in the way when leaving the tent in the event of a fire.

The main disadvantage is the danger of deforming frame elements

When you go camping with a frame tent, it is worth remembering that the metal parts of the frame may deform. This can happen because of rain water accumulating on a poorly stretched tent, or in winter when snow is not removed from the tent roof. In regions subject to heavy snowfalls, it is important to choose a winter frame tent with shaped poles, like the М-10 and М-30 tents. Frame pipes and connectors can also be deformed during transportation. If the frame is deformed, it might not be possible to assemble it. It is quite difficult to break a frameless tent, the worst that can happen is that the central pole breaks, which can usually be replaced on the spot by using a tree branch.

M-3 – the most compact frame tent

A small lightweight tent with a fibreglass frame (such as the М-3)is perfect for single campers or for a group of two to three people. These tents are now commonly used by people who love travelling by bicycle or going fishing and have fully replaced their predecessor – the two-sloped roof frameless tent. Don't forget that fibreglass is a fragile material and needs to be protected from knocks.

What's the best tent when travelling in a group?

When travelling with a group of five to ten people or more (especially if you're planning a long stay), you will need tents providing greater capacity and comfort. A good choice is the «Geologist» frame tent or a tent in the Pamir series  (the smallest is the Pamir-4). If you are looking for greater comfort, then you can choose the Pamir Deluxe or the М-8).

The Lavvu tent; let's make a frame from branches

When choosing large tents, the only disadvantage of a frame becomes apparent – its weight. The frame significantly increases the weight and volume of the product, which makes it unsuitable if you are hiking. To avoid increasing the weight, you can make the frame in the camp itself. This is possible if you choose the Lavvu tent. All you need to do is cut down some long branches and, following the instructions, attach them to the tent. The Lavvu is the only tent where you can light a fire inside; this could be suitable for heating or for creating a special atmosphere.

A single-layer tent has a wall made of one layer of fabric (actually, any tent without an inner tent can be called single-layer).

Living conditions

Most campers are aware of the main drawback of the single-layer tent – condensation.  Moisture formed by a person breathing inside the tent accumulates on the inside of the tent and forms droplets. Because of condensation, which may be quite severe when temperature changes (often in the morning, at sunrise), the camper may wake up in the morning in a wet sleeping bag, as if they'd been sleeping in the rain. This happens when the tent is made from a light synthetic non-breathable fabric (nylon, Oxford, etc.). These kinds of tents are sold in large quantities in sport and camping shops. Inexperienced campers only realise later that such a tent is not suitable for living in field conditions. To avoid making a mistake, have a look at the Tundra-4 which is suitable for camping and for hiking.

Fabric that prevents condensation

Single-layer tents that are suitable for living in (including the Tundra-4) are made from breathable canvas, consisting of 50/50 linen and cotton (with waterproofing). Air and evaporation pass relatively freely through such material and condensation is unable to form. The material is also treated with a special substance that prevents it from rotting.

The benefits of a single-layer tent when transporting it

One of the most important benefits of the single-layer tent is that it weighs significantly less. An inner tent may weigh tens of kilograms even if the tent is made of lightweight fabric. Its absence significantly lightens the load for travellers and also saves on transportation (as fuel consumption not only depends on distance but also on the weight of transported goods).

Reduced packaging size

You will also be pleased to note the volume of the transported goods; after all, it is easier to put a single-layer tent in, for example, a car's boot than a double-layered tent for the same number of people.

Single-layer tent: the budget solution

The cost of buying a tent is also an important factor. A single-layer tent may be regarded as a budget camping option. Such tents are significantly cheaper than double-layer models, however, the basic functions of such a tent are often no worse. Single-layer tents can be about 70% cheaper than their double-layer equivalent.

Simple and easy to assemble

Compared to double-layer tents, single-layer tents are quicker and easier to assemble (which is quite important in difficult conditions such as in cold weather). This is another reason for choosing one.

Any tent can be made from a single layer

The inner tent is not an obligatory element for tents. Any canvas tent can be supplied without an inner tent, making it cheaper; everything depends on the wishes of the customer. In this case, the tent hardly loses any functionality and can be used to live in (with a heating device in winter). Some tents are produced without an inner layer (for example, conical Teepees). PVC coated fabric tents can also be supplied without an inner tent and are a good solution for non-residential structures. Such premises can be conveniently used as temporary warehouses, equipment shelters or somewhere to perform temporary works.

Canvas suitable for tents

Half-linen canvas (tarpaulin) is a natural heavy fabric, which consists of a harsh thick yarn of cotton and linen. This material is ideal for different types of canvas tents: large military tents, camping hiking tents, summer marquees or winter tents for long-term living in field conditions.  The canvas can be treated with different chemicals depending on the requirements of the finished product. Usually, the canvas is treated with anti-rot, waterproof or fireproof chemicals. It has a light olive green colour (beige if the fabric isn't dyed).  To produce high quality tents, the weight of the canvas must be at least 550 g/m² of fabric. In accordance with Russian state standards (GOST), the best canvas for tents is item number 11252СКПВ. Canvas tents made from this material protect against precipitation and heat, do not crack in the cold, do not tear in strong gusts of wind and do not rot in their packaging while waiting for the next camping season.

The advantages of Russian canvas compared to foreign equivalents

Currently, we only export canvas tents (to central and northern Europe, neighbouring countries and Africa).  They are universal and popular with customers from all over the world thanks to the canvas's special composition. Half-linen canvas is only produced in Russia. Its fibres are made from the stem of the annual grass, flax. The tent fabric is very strong, durable and resistant to sunlight; the canvas does not become deformed when stretched (this is important for frameless tents like the USB-56) .  Foreign equivalents, consisting of 100% cotton or cotton with the addition of polyester are damaged by the aggressive impact of ultraviolet radiation over 3 to 6 months. Such second-rate tents are usually produced in Pakistan, India or China. They have a shorter service life, they fade and tear; the guarantee period for these cotton canvas tents does not exceed three months.

The advantage of canvas tents in summer

Half-linen canvas is a natural fabric with breathable properties; it remains breathable despite additional chemical treatments.  Such a fabric is needed for the production of some tents, for example Pamir Deluxe tents. At high temperatures, the air in the canvas tent is not stuffy as it has natural ventilation and carbon dioxide evaporates through the canvas fibres, making air conditioning unnecessary.

Waterproof tent

Making tents from waterproof fabric does not guarantee their impermeability. Moisture can seep inside through technical holes, for example textile seams. This can corrode elements of the metal frame, damage the appearance of the inner tent (the fabric will be coloured by rust) and the fabric will rot. To stop water entering the tent through the seams, special waterproof thread should be used. Linen yarn has the ability to swell when it absorbs water and is very hygroscopic. When it starts to rain, this thread gets wet at first (the seam leaks a little), then the holes created during sewing are filled with the swollen linen and moisture no longer penetrates the seam. If you are not sure which thread was used in the tent you want to buy, you should choose a tent with a PVC roof and canvas walls, such as the Headquarters tent.

The importance of canvas in single-layer tents

A single-layer tent is cheaper, doesn't take up much space in your car and is easier to carry and assemble. If you require a single-layer tent (without insulation walls or an inner tent), have a look at canvas tents (conical Scandinavian tents). Canvas is vapour permeable, which means that condensation will not form in the tent. To avoid dampness in a single-layer tent, make sure you buy a tent made from vapour permeable fabric.  Canvas can also be used to sew industrial curtains, canopies and covers, as the equipment that they cover will not get damp and will not corrode from rain or condensation.

Universal fabric for winter frosts

Canvas tents are the best option in harsh winters, when the thermometer drops below -30°C. This is especially true when you need to pitch your tent in the bitter cold, when your temporary accommodation has been in the cold for a long time and the components have frozen. To assemble winter tents, it is vital that the tent remains elastic, otherwise cracks will form in the fabric and the material will be damaged. Canvas remains "soft" at low temperatures, but in such conditions a canvas tent should be equipped with a heating device (a stove or fan heater) to heat up the air, and the inner tent should have insulating walls (to retain heat and create a microclimate inside the tent).

Comfort in a summer tent

You will only be able to escape the heat if all elements of the tent are adapted to cope with high temperatures and solar radiation. A good summer tent is cool but not stuffy, it provides protection from the heat, UV rays, insects and from the rain.

Tents made from natural fabric

Breathable canvas, made from only natural cotton and linen, is the most suitable material for the outer tent. This combination provides natural cooling and fresh air penetrates through the fabric, which does not retain moisture or carbon dioxide. You can check the fabric by trying to breathe through it. The light colour of the half-linen canvas heats up less in the sun than bright synthetic fabrics such as Polyester or Oxford (for example, this is how it looks on camping tents). The main condition when buying a canvas summer tent is the presence of waterproof and anti-rot treatment in the material. After all, the tent should also protect from the rain, but the lack of anti-rot treatment will cause the fabric to quickly rot because of its natural content. Check with the manufacturer which canvas was used to produce the tent. Item 11252СКПВ produced by Vladimirsky Textile is the best canvas currently available on the Russian market.

Circumstances when fabric with PVC coating is recommended in the summer

If there is a high probability of heavy rain, then we recommend that you buy a combined summer tent. The roof of the tent is made from double-layer PVC coated fabric (more information on PVC)and the wall is made from canvas. This looks like the logical option: PVC will protect against any downpour; a PVC roof is impermeable to water and has no seams (in canvas roofs seams may provide "doors" for water if the incorrect threads were used to sew the fabric). PVC sheets are welded together using heated air. Tents made entirely from PVC coated fabric are used when air conditioning is required, for example for an operating theatre in a medical tent. In such cases, PVC ensures that the tent is sealed and cold air supplied by the mobile air-conditioner remains inside the tent.

Protect your summer tent from UV rays

Ultraviolet radiation can gradually damage canvas. The outer tent can be protected by an awning  (canvas or polypropylene mesh), stretched on poles or between nearby trees, attached to the tent at a height of 20 to 25 cm (when it is no longer good enough, it is easier and cheaper to replace than an outer tent). The air layer between the awning and the roof also prevents air in the tent from heating.

A summer tent should have two layers

The inner tent helps to significantly reduce the heating inside the summer tent. This is due to the layer of air that forms between the outer and inner tents. In particularly hot climates, this layer of air is crucial to maintaining a comfortable atmosphere. Bleached calico is generally used as the inner tent fabric. It is sometimes sensible to use more expensive material, such as Discret-O.

How to ventilate the tent

Although both summer tent layers should allow air to pass through them, there are several other ventilation methods. If the tent has two exits at opposite ends, then it is easy to create a current of air (like in the Pamir 30 tent). Ventilation holes with flaps are usually provided in the end walls (at the top where air heats quicker). Ventilation can also be provided through windows and by rolling up the lower edge of the outer tent. All summer tents sold by RPC OFT have fasteners attaching the outer tent while airing the tent. Don't forget that warm air flowing freely through the tent will heat it up. Therefore, in hot weather it is sensible to keep the windows and entrances tightly closed.

Windows in a summer tent

It should be possible to remove or roll up windows in summer tents. PVC plastic is very suitable for summer tent windows. However, this clear window plastic can be easily damaged. RPC ORT provides removable welded windows for its tents. Using a high-frequency machine, a cruciform PVC insert is welded into the transparent plastic. This serves to prevent the plastic window from straining when twisted. The window is placed in the same way in a PVC frame, which has a hole for fixing it to the window frame. The window not only withstands bending better, but can be easily removed for storage or replacement (most tents that are currently produced have windows that are tightly soldered to the inner tent, which prevents airing, makes it difficult to store them carefully and makes it harder to replace them).

Mosquito nets

In addition to the standard light-protective curtains and plastic windows for summer and winter tents, the summer window kit includes a mosquito net. The ventilation holes on the end walls also have mosquito nets. Mosquito nets are also used in camping tents for panoramic windows (such as the  Headquarters and Camping tents).

Flooring

The waterproof tent floor is a sheet of PVC coated material. It can be a separate element, tightly fastened to the outer tent or it can be joined to the outer tent as a single unit. The attachable floor has sides that turn upwards, protecting the tent from water, as well as fabric pockets for inserting the frame's poles.

Wind is the main test for summer tent frames

The summer frame is made from round metal poles. They carry weight very well, even if the tent is completely soaked. In windy weather, the frame can be strengthened with additional ties (steel cables stretched between structural elements) and additional end poles preventing the tent from collapsing. In particularly windy conditions, a winter frame can be used which has shaped poles.

What are frameless tents?

Frameless tents are those which are assembled using poles and guy ropes are fixed to the ground with stakes and pegs.  The tent's main supports are two central poles for large tents (like in the USB-56), or one central one for small tents. Some seasoned campers and soldiers are familiar with the "transition" type, the tent is stretched on a special machine  (no longer available).

Should you choose a frameless tent for group camping?

If you are travelling with a group of two to four people and don't intend to stay long in one place or do any extreme fishing or canoeing, then your best choice is the small frameless Tundra-4 tent. If you're going on a long hiking trip with a larger group and intend to put up a temporary camp, then the choice between a frame and frameless tent is not so obvious.

A frameless tent is less susceptible to damage

The method for assembling frameless tents is much less reliable than that for frame tents. However, when you choose a tent for your camping trip, it is worth noting some of the features of the frame which mean it is not always convenient. For example, metal elements may become deformed and fibreglass ones may crack. If one of the many parts of the frame becomes deformed or lost, the tent may lose its shape and integrity and it may be impossible to assemble it. There is nothing to break in a frameless tent, except for the central pole.

The frame increases the weight of the tent

The tent frame is usually made from steel or aluminium. A steel frame adds significant weight and volume, which may be a significant factor on long trips. The metallic elements of a frameless tent have no significant effect. An alternative is to use aluminium poles, but such a design is much more expensive and less durable under mechanical loads.

You don't need a flat area to pitch a frameless tent

Frameless tents can be pitched almost anywhere, unlike frame tents they don't require a completely flat area. Uneven ground can be easily compensated for by using the guy ropes.

It is not always vital to have rigid frame fixing elements

Rigid frame fixing elements are not usually particularly important, unless you are travelling in strong winds, snow fall or heavy rain. Due to its soft structure, a frameless tent may sway slightly in the wind, thereby compensating for the wind load. If the central pole falls, it can be easily put back in place and, if it breaks, can be easily replaced by cutting a tree branch. Sometimes, the pole may go quite deep into the soil if the tent is very wet or is covered in snow. However, this does not affect the future functioning of the tent.

The Tundra tent will add some romance

Romance is always part of a camping trip. You can add to the romantic mood by choosing the correct camping lodgings. RPC OFT offers frameless designs including Tundra tents, which look like a wigwam or a  teepee. They are easy to assemble on any sufficiently flat ground by using guy ropes and the central pole. This tent will undoubtedly provide you with new and unusual experiences!

Two tents – inner and outer

Most types of modern industrial tents are designed with two layers of fabric (tents or awnings): inner and outer. In frame tents, the inner tent is attached to the bottom of the frame and the outer tent to the top. In frameless tents, the inner tent is attached to the outer tent. Usually, it is not always necessary to install the inner tent (or even buy one). However, in most cases, both layers are used for what are called double-layer tents.

Creating a microclimate thanks to two layers of fabric

However, it should be noted that the wall in such a tent actually has three layers, as there is an air layer between the layers of fabric. This plays a key role in providing insulation (air conducts heat about 100 times worse than a solid body, therefore, in hot weather the heat inside the tent is reduced, while in cold weather heat loss is reduced). The insulated double-layer tent is heavily dependent on the integrity of the inner and outer tents; holes, that make them permeable, significantly reduce the efficiency of the heat insulating air layer.

Canvas is the ideal material for the outer tent

The best material for the outer tent is canvas, specially developed for tents with breathable material, with moisture proof and anti-rot treatment (flammability treatment is also possible). The thick thread used for such canvas is made from linen and cotton (50/50). This material is permeable to carbon dioxide and water vapour, allows fresh air to pass, but is also highly resistant to precipitation (especially as it has waterproofing treatment and, when stretched, water doesn't accumulate on the surface of the tent). To ensure that the seams do not allow water to get through, a special thread is used that swells when wet and blocks the places where water could pass.

PVC fabric is used for full double-layer tent insulation

PVC double-layer fabric is used for the outer tent for maximum protection from environmental impacts (including fully sealed). Such a tent is totally impermeable to water and air (windproof) and frost resistant. Sometimes it is sensible to only use this for certain parts of the tent (roof, areas that are most subject to rubbing against the frame, etc.) and use breathable canvas for the walls.

The inner tent protects from condensation

The inner tent is usually made from air permeable fabric which is also water absorbent (such as calico). If condensation still forms inside the tent, then calico absorbs the drops that fall from the tent ceiling, and the inhabitants' clothes and property remain dry. If you need a more durable inner tent, then you can use  Discret-O material.

Inner tent as additional insulation

In cold weather, the inner tent is very important for insulation. A more insulating fabric can be used (non-woven or special foil material that can "reflect" heat inside the tent, such as in the  Arcticspas tent).

Double-layer hygienic tent

An additional function of the inner tent is to maintain hygiene. If necessary, the fabric can be washed (it is important to follow the washing instructions) or replaced without dismantling the whole structure (you probably won't be able to wash the outer tent and it will be much more expensive to replace it). This is particularly important if the tent is used as a medical centre, hospital, temporary refugee shelter, etc.

The double-layer tent allows the inner space to be zoned

By using the specially sewn inner tent, it is possible to zone and optimise the tent's space with curtains, pockets and accessories (the living area and veranda can be zoned in the Camping tent). By planning where the cuts for additional compartments are to be made in the inner tent, it is possible to arrange more convenient sleeping places and hide baggage.

PVC tents have an outer tent made from PVC coated fabric.  The basis of this material is nylon thread, whose weaving and density affects adhesion (the ability to attach the surfaces of two different types of objects) of the PVC to it. The quality of the PVC sheets depends on the degree of adhesion. The fabric (nylon) basis of the material can be distinguished by chemical composition, strength characteristics, weight, and type of weaving (for example, the weft and warp ratios are 1:1 or 1:2. The number of threads per centimetre of fabric is also important).  The bigger the nylon thread used in the fabric part of the material, the higher the breaking load values. However, the adhesive coating in the fabric parts significantly worsens. When sheets of this material are welded together, for example, using a construction heat gun or professional equipment, the PVC coating can be easily torn off the second sheet. This not only damages the sealing of the seams, but also the integrity of the finished product. Such a tent may not be sufficiently sealed. The fabric base may be covered in PVC on just one or both sides. Double-sided coating is best for tents as it increases their life and storage periods.

Chemical Properties

PVC coatings are slightly soluble in ketones, esters and chlorinated hydrocarbons. PVC is resistant to acids, fats, alkalis, salt solutions, water, petrol, alcohol, kerosene, industrial gases, including alkanes (methane, ethane, propane, butane, etc.), hydrogen fluoride, nitrogen dioxide, etc. PVC can be freely mixed in any proportions with phosphate, phthalate and sebacylic acid derivative plasticisers.

PVC is very resistant to oxidation and is not considered to be a flammable material, therefore nylon fabric coating on both sides of the PVC is reliably protected from moisture and fire and does not rot. As tents are often left in storage for a long time where heating and ventilation is insufficient (and often kept on the floor rather than on shelves), PVC coated fabric tents are very popular.

Various additives can be added to PVC coatings. For example, polyvinylidene difluoride (PVDF) improves the fabric's resistance to UV rays. This additive is mainly used for tents in hot countries (for example, in Saudi Arabia, where huge tent cities are regularly put up during the Hajj pilgrimage).

Polyurethane improves the fabric's properties at low temperatures, makes it more elastic and resistant to creases formed from assembling and pitching tents in the cold. PVC fabric coated with lacquer or acrylic does not get very dirty and is easy to clean if necessary. So if you buy a light coloured tent (light colours will give your tent a festive appearance), make sure that the PVC fabric has an elegant gloss.

When a coloured lacquered tent bends, whitish creases may appear, i.e. the creases will be of a lighter colour. A tent with such creases doesn't look so attractive. After a certain period these creases disappear. However, if you want your tent to remain beautiful forever, then choose exclusively white PVC, where creases are not noticeable.

Temperature conditions

Despite its many positive features, tents made with PVC may have some limitations. If the PVC is not treated to improve the material's frost resistance, then the tent may only be used at temperatures from -30 to +40°C. However, if the tent is pitched in the cold, then the outer tent must be stored beforehand in heated premises, as a hardened outer tent will be difficult to put up. If it is not possible to heat the tent in advance, then it is better to buy a canvas tent.

If the outdoor temperature exceeds 40°C, then PVC without protective additives will begin to melt and stretch. Why does PVC fabric withstand temperatures of +70°C, while the tent only withstands +40°C? This can be explained as follows:  when the heat of the sun falls on the surface, the rays can be absorbed or reflected; the surface heats up more, especially if it is a dark colour, than the surrounding air. Therefore, when it is +40°C outside, your olive green tent is in direct sunlight and its temperature can easily exceed +100°C.

PVC fabric colour range

PVC fabrics can be made in any colour. However, materials with a colour made to order are produced in small quantities due to low demand. If you can't wait two months to receive the coloured fabric you desire, then you can always choose PVC fabric that is in stock. The most common PVC fabric colours are white, blue, olive green and blue. We also offer the services of an artist who can help produce a tent in the colours of your organisation using paints, logos and slogans.