Weatherproof Silicone Sealant V.S. Structural Silicone Sealant

Structural silicone sealant bonding force is stronger than the weatherproof adhesive. Structural adhesives are good at transmitting the external and internal forces to which the bonded material is subjected, but the disadvantage is that the waterproof performance is relatively poor. They are generally used for curtain walls, doors and windows, airport runways, highways and other roads and bridges, and other engineering joints.

Structural Silicone sealant is divided into two-component and one-component, and its modulus of elasticity is also more significant than that of weatherproof adhesive. Silicone structural sealant can withstand alternating external forces. However, if it is subjected to external forces for a long time, it will be displaced and dislocated, so it is suitable for indoor use or projects that have dealt with waterproofing.

Structural silicone sealant is mainly shown in tear strength, elongation at break, tensile strength, etc. It is more suitable for the bonding of weight structure. However, the price is also higher. It is suitable for the second channel bonding and sealing of insulating glass, the bonding of glass curtain walls and aluminum frames, etc.