hdi waterborne 278   product description： aquolin 278 is a water dispersible polyisocyanate based on hexamethylene diisocyanate(hdi). in combination with waterborne polyurethane, polyacrylate, etc., it can be used for water-borne coatings. thanks to its low viscosity and ease of handmixing, aquolin 278 can be used to prepare “solvent-free hardener” in order to produce ultralow voc coatings. after addition of...