Desmodur® XP 2617 is a largely linear NCO prepolymer based on hexamethylene diisocyanate. It is used in combination with suitable polyether polyols as a co-reactant for polyurethane reactive systems when polyfunctional (branched) and aromatic isocyanate components cannot be used. Care must be taken during compounding, transfer, etc. to exclude moisture as even the slightest traces of moisture adversely affect storage stability. It must be ensured that the containers including those that are empty are kept sealed. Above all, contact with water must be prevented as it reacts with Desmodur® XP 2617 to form polyureas and carbon dioxide.
Covestro (formerly Bayer MaterialScience) manufactures adhesive raw materials for use in the production of contact and heat-activated adhesives, as well as reactive and hot-melt adhesives for the transportation, furniture, footwear, packaging, and construction markets. Bayer offers a comprehensive range based on polyurethane and polychloroprene, with specialty raw materials that offer UV light and weather resistance.
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