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Desmophen® R-221-75

Desmophen R-221-75 is a saturated polyester resin supplied in propylene glycol monomethyl ether acetate (PMA).

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About

Product Types

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Material

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General Characterization

Desmophen R-221-75 is a saturated polyester resin supplied in propylene glycol monomethyl ether acetate (PMA).

Storage Conditions

Desmophen R-221-75 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Recommended storage temperature is 0º-50ºC.

Sampling

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Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Appearance Clear yellow liquid
Weight per gallon at 25°C lb. 9.2
Flash point (Setaflash) °C 52
Equivalent weight avg. (as supplied) 522
OH content % 3.3
Specific gravity at 25ºC 1.10

Specifications

Property Name Test Method Unit Value
Color (Gardner) ≤ 3.0
Hydroxyl value mg KOH/g 90 - 125
Viscosity at 25ºC mPa∙s 3,000 - 11,000
Acid value mg KOH/g ≤ 9.0
Non-volatile content % 75 ± 3
Water content % ≤ 0.20

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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