OK
The Universal Selection Source:
Adhesives Ingredients
Article

Silyl Terminated Construction Sealants

SpecialChem / Edward M Petrie – Aug 26, 2009

This article reviews the advantages and disadvantages of silyl terminated construction sealants and provides information on formulation practices. Both silylated polyether (MS polymers) and silylated polyurethane polymers (SPUR) are considered. "Hybrid" sealants are of increasing interest because they can be formulated to provide the best properties of two or more families of polymeric materials while limiting their individual inherent weaknesses. Construction sealants based on these hybrid polymers have better weathering characteristics than conventional polyurethane sealants, but without the odor and unpaintability problems of conventional silicone sealants. They also provide better adhesion, abrasion resistance and low temperature extrudability than silicone sealants. The silyl terminated sealant systems are also isocyanate- and solvent-free systems. Both silylated polyether (MS polymers) and silylated polyurethane polymers (SPUR) are considered. Although the main application for these materials is in the building and construction industry.

Be the first to comment on "Silyl Terminated Construction Sealants"

Leave a comment





Your email address and name will not be published submitting a comment or rating implies your acceptance to SpecialChem Terms & Conditions
Improve your performance with water soluble epoxy compounds
Back to Top