Market analysis, regulatory updates, and sourcing intelligence for procurement professionals in bulk chemicals — written by our commercial team.
HDI biuret, HDI trimer, low-viscosity trimer, allophanate, or IPDI? All are aliphatic, non-yellowing isocyanates for 2K PU coatings, but they cure to different hardness, flexibility, viscosity, and solids. Here is how the grades compare and which to spec, with a nominative Desmodur cross-reference.
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