Covestro DESMOPHEN® 631 MPA Polyurethane

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Covestro DESMOPHEN® 631 MPA Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Characterization: Desmophen 631 MPA is a saturated polyester resin. Properties / Applications: Desmophen 631 MPA polyester is a co-reactant for Desmodur® N 3200 polyisocyanate in two-component polyurethane coatings where higher solids (lower VOC) are needed. These coatings posses outstanding gloss retention, light stability and good chemical and abrasion resistance. As with any product, use of Desmophen 631 MPA in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.10 g/cc	1.10 g/cc
Solids Content	73 - 77 %	73 - 77 %
Viscosity	10000 - 25000 cP	10000 - 25000 cP

Chemical Properties	Metric	English	Comments
Acid Value	<= 3.1	<= 3.1	[mg KOH/g]

Thermal Properties	Metric	English	Comments
Flash Point	50.0 °C	122 °F	Setaflash

Optical Properties	Metric	English	Comments
Gardner Color Number	<= 3.0	<= 3.0

Processing Properties	Metric	English	Comments
Moisture Content	<= 0.20 %	<= 0.20 %

Descriptive Properties
Appearance	Yellowish liquid
Content	6.4%		OH
Hydroxyl number	200-220

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PCOVEST0733 / 202516

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