To answer this need, scientists at Dow Corning Corp. set out to develop a new class of organo-functional siloxane resins to serve as epoxy resin crosslinkers that would provide bis-phenol A epoxy coatings with the flexibility and the recoatability unavailable with existing organo-functional silicone polymers.
In their study, the scientists compared modifications of a bis-phenol A epoxy paint prepared on a Cowles blade dispersator. After reduction with methyl isobutyl ketone to 30 seconds per #4 Zahn cup, the coatings were modified with a variety of silicon-based technologies, including aminopropyltriethoxysilane, aminopropylmethyldiethox-ysilane, a methoxy-terminated siloxane resin, a silanol-terminated siloxane resin and a novel amine-terminated siloxane resin.