Why foam caulking becomes brittle when used at low temperatures

Foam caulk After foaming and curing, an elastomer similar to foam will be formed. , High-quality foam caulking agent has good foam paper density after curing font>, has high hardness and can be well used for caulking of building doors and windows. But did you know that foam caulking may become brittle when used in low-temperature environments in winter ‘sfoam caulkingThe sealing performance and thermal insulation performance will be reduced, and even degumming will occur, then Resultingfoam caulkWhat are the reasons for embrittlement after curing?

Foam caulkat Cureappears later发brittleEven the phenomenon of powdering, Probably Due toconstruction environment temperatureoverlow caused by . For example, when our friends in the north apply foam caulking during winter construction, Due to the influence of low temperature, the curing time of foam caulking agent is prolonged, and during the curing process Embrittlement appears in. In fact, this phenomenon is a common problem with foam caulking products.and qualitygood or bad It doesn’t matter much. This situation can be avoided, just do the following things.

How to avoidFoam caulkAfter curingbrittle?

1, can foam caulking agent To preheat, you need to soak it in warm water for a while（30~50℃between), it should not be too hot. If the water temperature is too hot, it will easily cause the material in the tank to rise, causing Explosion.

2, becauseFoam caulkis a curing phenomenon that relies on moisture in the air, so some water can be appropriately sprinkled on the construction surface to increase the curing speed.

3When the temperature of the construction environment is too low , it is not recommended to construct or take measures, otherwise embrittlement will occur during the curing process.

4, there are specially designed to deal with low temperatures in winterFoam caulk, this typeFoam caulkIn a low-temperature environment, embrittlement will not occur during the curing stage.

5, usually big brands font>Foam caulkMore quality assurance, more quality assurance,Such manufacturersNot only focusFoam caulking agent ‘sR&D and production, customized foam caulking is also available agentapplication solutions, with a wide range of uses, can be used in new energy and military industries , medical, aviation, shipbuilding, electronics, automobiles, instruments, power supplies, high-speed rail and other industries.

It can be seen that in the environment with very low temperature in winter, it is not suitable to use foam caulking agent for construction. If necessary, it is recommended to purchase the manufacturer’s winter-specific foam caulking product for gluing. If you want to know more about the use of foam caulks, you can follow the author for more content.

Title of this article: Why foam caulking becomes brittle when used at low temperatures

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