Glue knowledge

What problems should be paid attention to in the construction of joint sealant?


The normal operating temperature of the polyurethane foam caulk tank is +5 ~ +40℃, and the best operating temperature is +18 ~ +25℃. In low temperature, it is recommended that the product be placed at a constant temperature of +25 ~ +30℃ for 30 minutes before use to ensure its best performance. The temperature range of the cured foam is -35℃ ~ +80℃.

Polyurethane foam sealant is a wet curing foam. It should be sprayed on the wet surface when used. The higher the humidity, the faster the curing. Uncured foams can be cleaned with detergents, while cured foams are removed mechanically (by sanding or cutting). The cured foam will turn yellow after exposure to ultraviolet light. It is recommended to use other materials (cement mortar, paint, etc.) on the surface of the cured foam. After the use of the spray gun, please immediately use special cleaning agent to clean the replacement tank, first shake the new tank (shake at least 20 times), remove the empty tank, quickly replace the new tank, to prevent the spray gun connection curing.

The flow control valve and trigger of the spray gun control the size of the foam flow. When the injection stops, the flow valve is closed clockwise. 【 the 】