Will it be strong to install the door cover only with styrofoam? How to use styrofoam

Styrofoam is a kind of glue with foaming and adhesive properties. It is mainly used for filling, sealing and bonding side seams of doors and windows, expansion joints and holes of components, and is a very common decorative material in modern home decoration. Then, will it be very firm to install the door cover only with styrofoam? Let's take a look!

First, will it be strong to use styrofoam only to install the door cover?

I asked several masters and gave me a unified answer, that is, the door cover only needs styrofoam stickers, and there will be no problem. Styrofoam itself has strong adhesion and is an elastic material with closed-cell structure. There is no need to worry about the expansion and contraction of the door cover, and the door cover and the wall surface are directly bonded and sealed, and the effect is still very good.

In recent years, expanded polystyrene has been widely used in wooden door installation. Some people think that the more polystyrene foam is filled, the stronger the door cover will be. In fact, this is a wrong approach. Too much styrofoam will lead to the deformation of the door cover, and there should be no other external influence within 24 hours after filling styrofoam to avoid deformation.

In the process of using styrofoam,

It is normal to spill it out, and some owners will buckle it directly or clean it, so that the door cover is easy to absorb moisture and deform. If you wipe the styrofoam as soon as it overflows, it will only rub more and more, and it is not easy to clean it. Just flatten it with your fingers. In addition, some information on the internet shows that the distance between the door cover and the wall is not more than 4cm, and it is ok without nails. If it is really necessary, workers should not knock in the nails at once when installing the door cover, which may lead to the vertical deviation of the door cover and affect the final effect. Just adjust all the adjusted positions and nail them in and fix them.

However, many styrofoam on the market are not up to standard and do not have great adhesion, so it is not wrong for owners to have such concerns. The general master's construction is not nailed.

If you are not at ease, you can discuss it with the master. Second, introduce styrofoam.

Polystyrene foam is mainly used for filling, sealing and bonding side seams of building doors and windows, expansion joints and holes of components. It is a moisture-cured polyurethane elastic sealing foam material. It is divided into gun type and tube type. The gun type can only be equipped with a special polyurethane foam gun, and the tube type can be equipped with a disposable hose. It is a one-component, moisture-cured, multi-purpose polyurethane foam filled elastic sealing material. Styrofoam is a special polyurethane product, which is filled with polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol can.

Thirdly, the foaming principle of styrofoam.

When the material is ejected from the aerosol can, the foamed polyurethane material will expand rapidly and solidify with the air or moisture in the contact matrix to form foam. The cured expanded polystyrene has many effects, such as caulking, bonding, sealing, heat insulation, sound absorption and so on.

It is an environment-friendly and energy-saving building material, which is convenient to use. It can be used for sealing and plugging, joint filling, fixed bonding, heat preservation and sound insulation, and is especially suitable for sealing and plugging and waterproofing between plastic steel or aluminum alloy doors and windows and walls. Fourth, use styrofoam

Usage and steps of styrofoam for guns:

1, take the foaming gun and clean it with polyurethane cleaner to ensure smooth flow;

2. Take styrofoam again, hold the middle of the tank tightly with your hands, and shake it vigorously at least 15-30 times along the transverse direction of the tank to ensure the prepolymer in the tank to be fully mixed;

3. Remove the protective sheath of the valve on the gun foam rubber thread ring, remove the cleaning agent on the foam gun, and install the foaming agent tank on the foam gun interface along the thread;

4. Hold the handle of the foaming gun tightly, ensure that the material tank is above and the foaming gun is below, and open the flow regulating valve behind the foaming gun;

5. Aim the gun head at the bottom or inside of the part to be filled.

Gently pull the trigger and start the construction. It can be adjusted to an appropriate flow through the flow regulating valve behind the foaming gun; 6, after a can of spray, if you need to fill it up, you can immediately take out the empty can, according to the method of point 3, remount the foaming agent and continue the construction;

7, after the completion of the construction, remove the tank in time, put a special cleaning agent to clean the foaming gun, so as to avoid the rest of the material curing jam, destroy the foaming gun.

Verb (abbreviation of verb) How to use tubular styrofoam and its steps.

1, step 2 of the same gun type.

2. Turn the disposable hose clockwise.

3. Ensure that the tank is placed above, the foaming gun is under the tank, aim at the bottom or inside of the part to be filled, gently pull the trigger and start the construction.

4. Spray from bottom to top, and the spraying amount is 80% of the required filling amount (the filling amount of the pipe is 2/3).

6. Tips for using tubular styrofoam

Pay attention to the driving speed when spraying. Usually, the spraying amount is 2/3 of the required filling amount.

The vertical gap should be filled from bottom to top; When filling gaps such as ceilings, uncured foam may fall off due to gravity. It is suggested that the foam should be properly supported immediately after filling, and then the support should be removed after the foam is cured and bonded with the seam wall. 10 minutes or so, the foam is degummed, and it can be cut after 60 minutes. Cut off the excess foam with a small knife, and then coat the surface with cement mortar, paint or silica gel. Now styrofoam is widely used in our daily life, and many places can't do without styrofoam. When choosing styrofoam, you should choose a brand with guaranteed quality, and don't choose a small brand of styrofoam for the sake of cheapness, so as not to let styrofoam affect your health. I hope sharing can help everyone!