Reasons why foam caulk shrinks after curing_Toluene diisocyanate manufacturer

PolyurethaneFoam Caulk is a good sealing material with many uses. Foam caulking can be used in door and window constructionis divided into two types: For work wearandinteriorUse. The performance and price of foam caulking agents for different uses are different. Foam caulking products for workwear have higher quality requirements and are more expensive. Foam caulking products for interior use may not require such high quality, as long as they can fill seams, the price will be much cheaper.

Different typesfoam caulkingDue to different raw materials, the properties after curing are also different. Foam caulkAfter curing, it will appearFoam-like , composed of many uniform foam holes, can not onlybonding font> can also play a waterproof role.

1. Foam caulking agentAfter curingThe reason for shrinkage?

1, is of poor quality. Foam caulkIf there is serious shrinkage after curing, DescriptionFoam caulk at this timefoam caulkThe quality is not good and cannot be used anymore. It is necessary to re-construct those that have been completed to preventdoors and windows atIn the futureA problem occurred during use.

2, Construction issues. During the construction, because the volume punched out at one time was too large, the cells expanded greatly. When the temperature changes too much, shrinkage will occur ‘s situation. In order to avoid this situation, you can purchase foam padding with temperature resistance. Sealing agent.

2. The foam caulking agent cannot be applied What’s going on?

If during constructionfoam filling If the caulking agent cannot be dispensed, you can check whether the foam gun valve is open. IfnotOpen, bubbles will appearThe phenomenon that foam caulking cannot be applied. In addition, if the construction temperature is too low, may not be able to be printed. At this time, you only need to heat it and soak it in warm water for a while can be used normally. Remember not to use open flames directly for heating, otherwise there is a risk of explosion.

Foam caulking agentThere are still many problems during construction, such as water leakage, Long curing time etc. In order to prevent these problems, it is recommended that new workers be led by an elderly person in the early stages of construction. Selected foam caulking agentThe quality must be excellent, not for the sake of cheapselectUse inferior products.