VaporCoat® 850

Brand Family Overview

U-Nyte™ products are fiberglass mat binders formulated with phenoxy toughened epoxy resin and compounded with a curing agent. They are used in the manufacturing of nonwoven and textile rolled goods, are compatible with vinyl ester, unsaturated polyester, epoxy and urethane, and are available in powder and flake form.

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Designed primarily for MVTR, it also provides water resistance and some oil and grease resistance. It is gluable with both cold set and hot melt adhesives and is printable with water based inks.


Moisture barrier (MVTR) coating.

Physical Properties

These physical properties are typical but should not be considered specifications.

AppearanceOff-white to gray emulsion
pH8.0 - 10.0
Percent Non-Volatile60.5 - 62.0
Brookfield Viscosity (cps, mPa·s) 450 - 850
Spindle Number3

Site of Manufacture (and Product Code)


Application Data

VaporCoat® 850 should be applied via rod coater.