Desmophen® VP LS 2388 is a flexibilising hydroxyl-bearing polyester used as a co-reactant, primarily with Desmodur® N, in the formulation of two-component polyurethane coatings for plastics, characterised by their resistance to accelerated and outdoor weathering, high film elasticity and good tar resistance; also in the flexibilisation of hard coatings, e.g. in industrial applications. This product has a non-volatile content (1g,1h,125°C) of 80 ± 2%, a viscosity at 23°C of 3,000 ± 500 mPa·s, an equivalent weight of approx. 450.
Desmophen® VP LS 2388 is used primarily in combination with Desmodur® N 75 and Desmodur® N 3390 in the formulation of fast-drying, high-solids, two-component polyurethane coatings characterised by good lightfastness and weather stability, high film elasticity and good tar resistance. Of particular note is the better QUV performance and tar resistance compared with a Desmodur® N / Desmophen® 670 combination. The film elasticity values are comparable with those yielded by Desmophen® 670.
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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Covestro (formerly Bayer MaterialScience) 科思创 makes their documentation available in the regions indicated below:
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