Bayhydur® 3100 is a hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate, which is used as the hardener component for high-quality aqueous two-pack polyurethane systems and as an additive to improve the property profile of aqueous coating and adhesive systems. This product has a viscosity at 23°C of 2,800 ± 800, a NCO content of 17.4 ± 0.5, a color value (Hazen) of ≤ 60, and a monomeric HDI of ≤ 0,15.
Due to its hydrophilic character, Bayhydur® 3100 can be easily emulsified in the aqueous phase. It is used mainly as the crosslinking agent for aqueous polyol binders (Bayhydrol®). Bayhydur® 3100 can also be added to conventional OH-free dispersions to improve their property profiles.
Covestro (formerly Bayer MaterialScience) provides raw materials, such as waterborne adhesives, major high solids coatings, advanced powder coatings, and specialty sealant chemistries. Bayer produces polycarbonates and polycarbonate blends, polyurethanes, and TPU resins, particularly for design and processing parts with TPU resins applications; helping products in a wide variety of applications look better and last longer.
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