Initially developed to treat concrete floors, two-component waterborne (2K WB) polyurethane coatings formulated with resins from Bayer MaterialScience LLC are now being applied to protect against the adherence of graffiti to vertical surfaces. These vertical surfaces include exterior walls of buildings, concrete poles, metal utility poles and other surfaces prone to this nuisance. Bayer MaterialScience scientists found that the raw materials used in concrete-floor resins boasted enough chemical resistance to be an ecofriendly solution for protecting against graffiti on various substrates. Conventional coatings work well but tend to contain a high level of solvents with volatile organic compounds. The 2K WB polyurethane resins from Bayer MaterialScience can be formulated to produce very low-VOC coatings, providing applicators with materials that meet the latest sustainable construction specifications. In addition to features such as low VOCs, high chemical resistance, low odor, light stability and easy cleanability, the Bayhydur polyisocyanates and Bayhydrol polyurethane dispersions from Bayer MaterialScience LLC can easily be formulated to obtain a high gloss or matte finish. ? (412) 777-3983 ? www.bayermaterialsciencenafta.com
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