Category: Coating Chemistry
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Why Polyurea Sets in Seconds, and What That Speed Costs You
Polyurea gels in seconds because amines react with isocyanates far faster than polyols do. That speed buys moisture tolerance and same-day return to service, and it costs you flow-out, recoat windows, and any forgiveness for bad prep.
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Polyurea, Polyurethane, and Hybrids: What the Categories Actually Mean
Polyurethane is isocyanate plus polyol. Polyurea is isocyanate plus amine. Hybrids blend both. What that difference does to moisture sensitivity, working time, recoat windows, and UV behavior, and how to specify around it.