What is door and window sealant

Door and window sealants are mainly used to seal the joints between window frames and glass, and between window frames and internal and external walls. They play a key role in water tightness, air tightness, heat preservation, and sound insulation of doors and windows.

The raw materials of door and window sealants include: silicone, polyurethane, polysulfide, acrylic, butyl, asphalt and oily resin modified products. Among them, silicone, polysulfide, and polyurethane three room temperature curing elastic sealants are the most widely used in my country, especially silicone sealants.

According to the storage condition requirements in the relevant standards for door and window sealants, the nominal storage period of door and window sealants is below 27°C and under cool, dry and ventilated conditions. If the storage environment in actual use cannot meet the conditions specified in the standard, such as the ambient temperature is too high, the storage period of the door and window sealant may be shortened. Under this condition, the door and window sealant will cure slowly even if it does not exceed the nominal storage period. Phenomenon. Therefore, the storage period and storage environment of the door and window sealant must be confirmed.

The caulking sealant is designed for a short time. It is usually the most effective in preventing airflow from entering small window cracks. This sealant usually comes in the form of a roll of tape, which can be cut to the required length for use until a more durable window sealant can be used.