These things about door and window sealant

The sealant used in doors and windows is a kind of polymer sealing material with multiple functions such as adhesion and sealing, which plays a key role in the air tightness, water tightness and wind pressure resistance of doors and windows. Compared with glass and profiles, a small piece of sealant seems inconspicuous and has a low cost, but its quality directly affects the safety and service life of doors and windows, so many consumers will pay attention to sealant.

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WHAT

What kind of glue is used for door and window installation?

01, sealant & Silicone Adhesive

Glue for doors and windows is generally called sealant in the market, and because the main component of sealant-based glue is siloxane (also called silicone) chemical structure, the glue for doors and windows is also called silicone adhesive/silicone sealants.

Silicone sealants is a kind of sealant. Common sealants are as follows: polysulfide sealant (PS), silicone sealants (SR), polyurethane sealant (PU) and silane modified sealant (MS). Silicone sealants is widely used in the field of building assembly because of its stability in a wide temperature range, low weatherability, low flammability, long-lasting flexibility and adhesion.

02. Structural Adhesive & weather resistant adhesive
Silicone sealants is classified by function: silicone structural adhesive and silicone weatherproof adhesive.



Structural adhesive focuses on the bonding strength, and is mostly used for bonding different materials. Weatherproof adhesive focuses on displacement prevention and expansion, and is mostly used for weatherproof sealing of doors and windows curtain walls. Although they focus on different properties, they can both achieve the functions of anti-displacement stretching and sealing and waterproofing. For example, silicone structural adhesive is used for the second layer sealing of some insulating glass, and silicone weather-resistant sealant is used for the external gluing of daily home improvement doors and windows.

Neutral Silicone Sealant, Acid Silicone Sealant, Structural Sealant, Silicone Sealant