Covestro DESMOPHEN® 650 MPA Polyurethane

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Covestro DESMOPHEN® 650 MPA Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Characterization: Branched, hydroxyl-bearing polyester. As a co-reactant, usually with Desmodur® N 75, in the formulation of lightfast and weather-stable, two-component coatings. Properties / Applications: Desmophen® 650 MPA is used mainly as a co-reactant with Desmodur® N 75. This combination results in coatings with excellent lightfastness, gloss retention and weather stability. They also have very good resistance to chemicals and high abrasion resistance. Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.15 g/cc	1.15 g/cc	DIN EN ISO 2811-2
Volatiles	34 - 38 %	34 - 38 %	(1 g resin/1 ml TCP/1 h at 125 °C, (1 g resin/1 ml TCP/1 h at 125 °C, convection oven); DIN EN ISO 3251
Viscosity	17000 - 23000 cP	17000 - 23000 cP	DIN EN ISO 3219/A.3

Chemical Properties	Metric	English	Comments
Acid Value	<= 3.0	<= 3.0	[mg KOH/g]; DIN EN ISO 2114

Thermal Properties	Metric	English	Comments
Flash Point	47.0 °C	117 °F	DIN EN ISO 1523

Processing Properties	Metric	English	Comments
Moisture Content	>= 0.10 %	>= 0.10 %	DIN 51 777/1

Descriptive Properties
Color	<100		Hazen, DIN EN 1557
Content	4.9-5.7%		Hydroxyl, DIN 53 240/2

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PCOVEST0734 / 202517

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