Silane-modified polyurethane (SPUR) systems find increasingly extensive utilization in adhesive, sealant, and coating products. This study reports on a novel tin-free catalyst that is shown to be significantly more active than industry-standard catalysts in SPUR applications, while providing similar system stability and other end-use properties.
Increased regulatory scrutiny of lead, chromium, and zinc is driving the migration to heavy-metal-free corrosion inhibitors. In this article, several water-based resin technologies were selected to demonstrate the performance of heavy-metal-free corrosion inhibitors versus their zinc-containing counterparts.
Silanes have been shown to improve film properties of resin systems when they are reacted into the resin or incorporated into a resin solution as additives. The improved properties result from their unique functionality, which allows for inter-polymer crosslinking and chemical bond¬ing to many substrates.
