Notes for polyurethane foam sealant
2019-09-16 来自: Shanghaishuodejianzhucailiaoyouxiangongsi 浏览次数:99
Construction precautions
At low temperature, it is recommended to keep the product at a constant temperature of +25 ~ +30℃ for 30 minutes before use, so as to ensure its good zui performance. The temperature resistance range of the cured foam is -35℃ ~ +80℃.
Polyurethane foam sealant is a wet curing foam, which should be sprayed on the wet surface when used. The higher the humidity, the faster the curing. Uncured foams can be cleaned with cleaning agents, while cured foams should be removed mechanically (by sand grinding or cutting).
The cured foams will turn yellow after being irradiated by ultraviolet light. It is recommended to use other materials (cement mortar, paint, etc.) on the surface of the cured foams. After using the spray gun, please clean it with special cleaning agent immediately.
When replacing the canister, shake the new canister well (shake it at least 20 times), remove the empty canister, and quickly replace the new canister to prevent the connection of the spray gun from solidifying.
The flow control valve of spray gun and wrench can control the size of foam flow. Close the flow valve clockwise when the injection stops.
Safety precautions
Uncured foam is sticky to skin and clothing. Do not touch skin and clothing when using.
There is a pressure of 5-6kg/cm2 (25℃) inside the polyurethane foam caulking agent tank. The temperature during storage and transportation should not exceed 50℃ to prevent tank blasting.
Polyurethane foam caulking agent cans should be kept out of direct sunlight. Children are not allowed to touch them. Empty cans after use, especially those partially used but not used up, should not be thrown about.
Keep away from open fire and contact with inflammable and explosive articles.
The construction site should be ventilated, and the construction personnel should wear working gloves, overalls and goggles during the construction, and do not smoke.
If the foam touches your eyes, please rinse with water before going to the hospital. If skin is touched, rinse with water and soap.