Foam mounting: how to use no gun

Foam in the modern world, used in virtually all types of construction works. It is used during the installation of doors, Windows and window sills, and plumbing fixtures. Also, this building material has found wide application as insulation – they close up the gaps and cracks, it is made of sandwich panels and various insulation materials.

The Main advantage of foam is the convenience and ease of use.

Types of foam

In order to understand how to properly use foam, consider its variants. Today, modern industry produces three types of this material: the cylinders and two-component installation foam (in this article we will not be considered, since it applies only in a production environment). How do they differ? What kind of preference? How to use bottle with foam the Main criterion for the choice of this material is its purpose.

Foam for professional use (pistol)

This material is sold in bottles from 1.5 l and differs in that it can only be used with the mounting of the gun. Used, as a rule, professional builders, because this design allows you to easily and quickly get the job done.

The Use of a gun greatly facilitates the dispensing of the material. For casual work in the domestic environment, the material is not very comfortable, because after applying you need to wash the gun, and it is more financial costs. There are manufacturers that cylinders complete with hose for spraying. But apply foam professional, it's just not economical because the high pressure increases its consumption.

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Foam for domestic use

Sold in tubes with the capacity of 0,6-0,8 l, and is completed with a straw. It is intended for single use only. Convenient for filling small spaces and fixes various installation defects. Household foam endowed with the same properties as professional use. Included are bound to have a tube. If necessary, you can use the spray gun.

The Cost of foam professional is much higher than domestic, and it is mainly only with the difference in their volume.

Gun Design

Before you learn how to use a can of spray foam, first, let us consider the design of the gun. Regardless of the manufacturer? his device is the same and is quite simple:

• If the supply of domestic foam occurs through the PVC tube, then at the gun she carried through the metal with a special tip-nozzle. Hole tip less than 5 times the cross-section of the feed tube, thereby increasing the working pressure of the mixture.
• Connecting the cylinder occurs through the adapter-the adapter which is fixed on the body of the gun.
• The Purpose of the adjusting screw, the dosing outlet of the mixture.
• Handle of the tool is aluminum or plastic. On the barrel it is secured by a nut. Thanks to the collapsible design the gun is easy to clean from the frozen residue.
• The Trigger serves to supply the cylinder with mixture.

How to set up the cylinder on the gun

In order to learn how to properly use a foam gun, first consider how you insert it:

• The First thing to do – warm the can of foam in hot water to room temperature and shake well for 20-25 seconds to bring the foam substance to the smooth. Foam will come out smooth and full.

• Capacity top is covered by a protective cap prior to installation should be removed. Then have the gun arm down. When you connect firmly hold the device with one hand on the handle, and the other a rotational movement to wind the adapter cylinder. Evidence of the connection of hiss, which tells about the flow of foam. If there was no sound, this indicates a malfunction of the input ball valve, or the expiry date of the foam. To resolve this problem, the gun will have to be disassembled and cleaned of old dried material.
• After shaking, the device is put in operating position with the handle down. Adjusting screw crank a quarter turn and pull the trigger, pointing the barrel in the package. When the consistency of foam is normal, start to work.

Foam installation: how to use a spray gun?

To work with foam not require special skills. It will be enough once or twice to try something saponite, and succeed. Consider the sequence of work and some of the details:

• You must First prepare the surface on which is applied a polyurethane foam, to clean it from dirt and dust. Then drench it with water, since the process of adhesion is better with a wet surface. This can be done withusing a nebulizer.
• Now apply the foam mounting. How to use a gun? There is nothing complex here. The only thing you will need to prilovchitsya to dispense the foam output.
• The nozzle of the gun should be directed to the prepared surface and gently depressing the trigger to apply the required amount of foam. You should know that the vertical slit is filled from the bottom up. Wide cracks zapenivayutsya zig-zag motion.
• The Mixture extruded from the gun, when in contact with air tends strongly to expand, so to fill its free space should not more than 1/3 volume. After hardening of the first layer nenapadenii areas then it is better to add. Remove excess foam – this is an additional cost and a waste of time.
• Despite the fact that the tool has a fairly long barrel, with some hard to access areas he could not cope. You can use a lengthening adapter - a kind of flexible hose put on the barrel of the tool.
• After applying the foam, you should wait until it hardens. How much for this time? As a rule, the complete polymerization of this building material must be approximately 6-8 hours. So, in any case, according to the manufacturer, but in practice, as a rule, the situation is somewhat different – duration of curing of the foam depends on its volume and in some cases up to 12 hours.
• After the foam hardens, it is necessary to cut off the excess with a sharp knife or use a nail file on metal.

Foam mounting – is sensitive to ultraviolet rays material, which under their influence is destroyed, change color and crumble. If a polyurethane sealer is used on the street, after drying and removal of excess is necessary to cover it with cement mortar.

How to use foam with a straw?

If the container does not have a gun (in the household pins), instead included is a PVC tube that is screwed onto the adapter. The operation is identical to the professional foaming. With the cylinder not always convenient to work, but for occasional use it is great. This option is ideal in the situation where the seal will be small seams.

So, what are the disadvantages of foam mounting? How to use it, we have already found. Now let's consider the cons of such material

• It is Impossible to apply a fixed quantity of the tank contents, which increases the flow of foam.
• The Disadvantage of working with this tool. Keep the container upside down manually is quite tedious and even uncomfortable. Arm often gets tired, and need constant breaks.

The Use of foam without a gun and rolls

Sometimes it can be used professional foam without a gun. How to use a tank? In this situation you will have to choose themselves a tube to exit the foam and figure out how to press the valve. Figuratively, this process can be summarized as follows: it is necessary to let the air out of a Bicycle inner tube so that it all managed to get to the desired point and not hooked hands.

In this case, choose up from 3 parts: the first and the third – flexible, and the second – solid. The middle portion of the tap valve, the first does not give mounting foam to spray, and the third brings it to the treatment site.

Conclusion

So, we have considered the foam mounting. How to use the material we have studied. But do not forget about the protection of hands and face washed because the foam is quite hard. Much cheaper to buy the extra pair of gloves than it is to buy the solvent or walk in with soiled hands.