Silicone sealant as when now extensively applied in all kinds of building. Curtain wall and building interior and exterior decoration materials have been accepted by everyone.
However, with the rapid development of the use of silicone sealant in buildings, problems affecting the performance and safety of corresponding buildings gradually appear.
Therefore, it’s necessary to strengthen the understanding of silicone sealant product performance.
Silicone sealant is based on polydimethylsiloxane as the main raw material, supplemented by crosslinking agent, filler, plasticizer, coupling agent, catalyst in vacuum mixed paste, at room temperature through the water in the air should be solidified to form elastic silicone rubber.
Silicone sealant is a kind of glass and other base materials for bonding and sealing materials. There are two main categories: silicone sealant and polyurethane sealant (PU).
Silicone sealant have acetic and neutral two kinds (neutral sealant is divided into: stone sealant, anti-fungus sealant, fire sealant, pipeline sealant, etc.); Such as OLV 168 and OLV 128, they have different application.
OLV168 acetic silicone sealant fast vulcanization at room temperature, thixotropic, no flow, good aging resistance, oil resistance, water resistance, dilute acid resistance, dilute alkali resistance, high and low temperature resistance, can be used in the range of -60℃~250℃, has good sealing, shock resistance and impact resistance.
Acetic is mainly used for general bonding between glass and other building materials. Neutral overcomes the characteristics of acid corrosion metal materials and reaction with alkaline materials, so it has a wider range of application, and its market price is slightly higher than acid. A special kind of neutral on the market is structural silicone sealant, because it is directly used in the curtain wall metal and glass structure or non-structural bonding assembly, so the quality requirements and product grade is the highest in the glass glue, its market price is also the highest.
Post time: Feb-21-2023
