Covestro Bayhydrol® UH 340/1 Polyurethane Coating

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Covestro Bayhydrol® UH 340/1 Polyurethane Coating
Categories:	Polymer; Thermoplastic; Adhesives, Sealants, and Coatings; Thermoset; Polyurethane, TS
Material Notes:	Aliphatic anionic polyurethane dispersion. As a binder in the formulation of highly flexible water-thinnable coatings for wood, metal, plastics and mineral substrates. Also as a combination binder to improve the elasticity and flexibility of water-thinnable coatings. Properties / Applications: Bayhydrol® UH 340/1 can be used as the sole binder in the formulation of flexible lightfast coatings. The product is also suitable for combination with other water-thinnable binders. The pH of ready-to-use coatings should be between 7 and 8. Substances such as ammonia can be used to adjust the pH. Yellowing has sometimes been observed on maple. A test area should be coated before application on large surfaces. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc	DIN EN ISO 2811-2
Volatiles	59 - 61 %	1g/1h/125°C; DIN EN ISO 3251
Particle Size	120 - 220 µm
pH	6.0 - 7.0	DIN ISO 976

Chemical Properties	Original Value	Comments
Acid Value	1.5	[mg KOH/g]; DIN EN ISO 2114

Descriptive Properties
Appearance	milky, cloudy

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PCOVEST0172 / 201955

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