Covestro Bayhydrol® U 355 Polyurethane Coating

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Covestro Bayhydrol® U 355 Polyurethane Coating
Categories:	Polymer; Thermoplastic; Adhesives, Sealants, and Coatings; Thermoset; Polyurethane, TS
Material Notes:	Aliphatic, hydroxyfunctional polyester polyurethane dispersion. Binder for the formulation of water-thinnable soft-feel coatings. Properties / Applications: Bayhydrol® U 355 can be combined with flexible polyurethane dispersions, e.g. Bayhydrol® UH 240 and UH 340/1, to formulate soft-feel and suede-effect coatings. Suitable polyisocyanate components are Bayhydur® 3100, Bayhydur® VP LS 2306 and Bayhydur® VP LS 2319. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.07 g/cc	DIN EN ISO 2811
Volatiles	43 - 47 %	1g/1h/125°C; DIN EN ISO 3251
pH	7.0 - 7.5	10% in water; DIN ISO 976
Viscosity	250 - 650 cP	D= approx. 240 s-1; DIN EN ISO 3219/A.3

Chemical Properties	Original Value	Comments
Acid Value	10.5	[mg KOH/g]; DIN EN ISO 2114

Descriptive Properties
Content	0.8%	OH

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PCOVEST0165 / 201948

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