Hydrosize® U9-01

Brand Family Overview

VaporCoat® recyclable water-based coatings confer high barrier to paper-based packaging and wraps. Most VaporCoat grades are designed for “low MVTR”, to retard water vapor transmission in order to keep perishables fresh, frozen goods intact, or sensitive contents in factory condition. In response to market interest for greater food safety and preservation, additional VaporCoat products can inhibit contaminants ordinarily found in recycled paper from migrating into packaged dry food.

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Added to other Hydrosize U-series polyurethane dispersion fiber sizing agents, to further enhance the thermal stability and mechanical strength of reinforced composites, especially polyamides.


Nonionic blocked polyisocyanate dispersion

Performance Attributes

This product is used in many applications including the following:

ApplicationProperties Imparted
Fiber Sizingchopped strands, continuous fiber, PA compatible, PPS compatible, thermal stability

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Physical Properties

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

AppearanceMilky white liquid
pH7.5 - 9.5
Brookfield Viscosity (cps, mPa·s) <500
Spindle Number3

Site of Manufacture (and Product Code)

CIN (U901)