What does the “MS” in MS sealant stand for?
What does the “MS” in MS sealant stand for?
The “MS” in MS sealant stands for Methyl Methacrylate Silane. It refers to a type of sealant with a silane-modified polyether resin (often referred to as MS resin in the industry) as its core base material. It’s also known as “silane-modified polyether sealant.”
1. MS Resin: The Core, “Skeleton” of MS Sealant
The core performance of MS sealant stems from its base material—the silane-modified polyether resin. This resin is chemically modified to combine polyether segments (which provide flexibility and weather resistance) with silane groups (which provide cross-linking and curing capabilities). It combines the advantages of both components:
Polyether segments impart excellent elasticity, high and low temperature resistance (-40°C to 120°C), and aging resistance, making it less susceptible to cracking or hardening after long-term use.
Silane groups enable the sealant to cross-link and cure with moisture at room temperature (without the need for high-temperature heating). Upon curing, it forms an elastic colloid with excellent adhesion to a variety of substrates, including metal, glass, and stone.