Frequently Asked Questions and Solutions about Foam Caulk

Foam caulk is a very common foam auxiliary material in the home decoration market. Small foam has great uses. So what are the common problems with foam caulking agents during our daily construction process? Today the author will take you through it and teach you how to solve these problems.

1 , the foam caulking cannot be applied

First check the foam caulk Is the tank cured? Shake the jar by hand. If you can shake it well, you can see that there is no cure. If it can be shaken, but cannot be typed out , the following problems may exist: font>①The glue gun assembly is not in place and the valve is not opened. RequiredTighten the glue gun and open the valve. ②If the muzzle, adapter or barrel of the foam caulking gun is clogged, it should be cleaned immediately. Clean it with detergent and then check whether Unobstructed; or directly replace the glue gun with a new one. ③Foam jointValve‘s “valve closure” may be caused by prolonged reverse placement. You can take out the jar, let it sit for five minutes, insert a nail into the valve, tap it lightly with a hammer, and install the glue gun as soon as you hear the ventilation sound. It is recommended to use it once. ④Due to low temperature(5℃below), you can soak the jar in warm water for about five minutes before it can be used normally.

2. There is bleeding after typing

Since the temperature is below zero, the jar can be placed in warm water(30-50 ℃) about10minutes for normal use. It is recommended to use winter when the temperature is below 5 degrees >TypeFoam caulking agent.

3. Why is there ��时 Foam caulkPunch into powder

Because the temperature is lower than -5℃ , it has not been completely cured and there is a powdery phenomenon, but 10℃AbovePowder after 24 hours The phenomenon will disappear.

4. WhyFoam caulkwill leak

The waterproof principle of foam caulking is that its cells have Higher closed cell rate, if the closed cell rate reaches more than 75%, its internal structure can play a better waterproof role. However, due to the excessive pursuit of profits, some manufacturers deliberately reduce costs, add fillers, and increase the amount of white material. This product not only has low foaming volume, but also has a shrinkage rate of more than 50%. Therefore, opening agents are added to open the foam to solve the shrinkage problem, but the foam will lose elasticity, leak water, and the load-bearing capacity will be greatly reduced. Therefore, it is recommended to use high-performance products from big brands instead of low-priced products from miscellaneous brands, which leave many hidden dangers. It is recommended to use Weigu brand foam caulking.

5. How to solve the problem of poor adhesion during construction and the inability to stick to the surface of wall profiles

First make sure there are no oily substances or Teflon on the rubber surface Dragon coating, then clean the dust and sand on the rubber surface or spray a small amount of water on the rubber surface.

6. What to do if the gap is particularly large or small during construction

If it is a large seam, if it is horizontal xiangYou can put it on the bottom layer firsthit One layer, then add the others Vertical seams, and finally patch the seams on the original basis. This avoids wasting a lot of glue with one-time filling. If it’s a very small gap, you can leave it alone and fill the end of each jar with about100 grams of slime.

7. What should I do if the curing is slow

Spray a small amount of water on the glue surface and try to fill it with a swing-type nozzle to increase the interaction between the glue and the air when it comes out of the gun Full contact reduces curing time. For a short construction period, you can choose pre-foamed products, which can shorten the curing time. Generally, surface treatment can be done within 40 minutes after the glue is applied. The glue will be completely solidified and will not expand or shrink.

8. What should I do if the cells are very large after the foam caulking is cured?

The cured foam caulking agent has larger pores, which may be due to the humidity of the local construction environment lower. Because the foaming principle of foam caulking is to react with water to produce carbon dioxide gas and foam. This phenomenon can occur if the reaction is incomplete due to low humidity and insufficient moisture. It may also be caused by using the pressing and soaking process and pressing and soaking too early. It is recommended to sprinkle water before construction in a dry environment, and consult the manufacturer to select the appropriate soaking time.

The author will introduce you to the common problems and solutions about foam caulking here, if you want to know more For more knowledge about the home decoration industry, you can follow the author.

Title of this article: Common problems and solutions for foam caulking

Link to this article: http://www.wellgo. com.cn/newb/information_2362.shtml

宋体;line-height:150%;font-weight:normal;font-size:16px”>Spray a small amount of water on the glue surface, try to fill it with a swing-type nozzle to increase the amount of glue coming out of the gun Full contact with the air at the time, shortening the curing time. The construction period is short, you can choose pre-foamed products, which can shorten the curing time. Generally, surface treatment can be done in 40 minutes after the glue is applied, and the glue is completely cured and finalized. Will not expand or shrink.

8. What should I do if the bubbles are very large after the foam caulking agent is cured?

The cured foam caulking agent has larger pores, which may be Due to the low humidity of the local construction environment. Because the foaming principle of foam caulking is to react with water to produce carbon dioxide gas and foam. If the reaction is incomplete due to low humidity and insufficient water, this phenomenon will occur. It may also be caused by the use of press The soaking process is caused by premature soaking. It is recommended to sprinkle water before construction in a dry environment, and consult the manufacturer to choose the appropriate soaking time.

The author will introduce you to the common problems and solutions about foam caulking here. If you want to know more about the home decoration industry, you can follow the author.