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March 2010: Trends in Construction Sealants: what are the benefits of hybrid sealants over conventional silicone sealants?
"Hybrid" sealants are of increasing interest in the Building and Construction Industry: beyond the fact that they are isocyanate-free and solvent-free, what advantages do you see for silylated polyether (MS polymers) and silylated polyurethane polymers (SPUR)?
manager - Mar 02, 2010
posted by Dekei Kim, Purchasing / Supply chain at HRS
to get the market information to set the tactics
Advantages over silicones - Mar 04, 2010
posted by Block Hermann, R&D - Applied/ Formulation/ Product development at Nanosil GmbH
Hybrid sealants (moisture cured) based on Polyether backbones in a large number of cases offer significant advantages over silcone-based sealants, 1K- as well as 2K-compounds.
Better tack in conjunction with paintability are not the only features. Moreover the mechanical performance for instance in terms of better tear resistance is very interesting. Lower shrinkage allows applications in thick layers. Sometimes you will appreciate a reduced susceptibility to growth of fungi. Flame retardant formulations are also possible. A very interesting field of operation for the experienced formulator!
Primer - Mar 04, 2010
posted by Cher Wen Goh, Corporate Management at Rovski Sdn Bhd
MS Polymer Sealant offer very good bond without primer as compared to PU, Silicone or PS. Usually a problem on site during application although primier will enhance the bonding
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