Hydrosize® U6-01

Brand Family Overview

Hydrolube® fiber lubricants are used to protect glass fiber and other reinforcing fibers during forming, processing and post-processing. Other attribute enhancing properties vary among the product line.

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An aqueous solution designed to be used as a fiber sizing agent for continuous nylon and epoxy reinforcements. This product is APE free.


Polyurethane solution

Performance Attributes

This product is used in many applications including the following:

ApplicationProperties Imparted
Fiber Sizingcontinuous fiber, impact resistance, PA compatible, PET/PBT compatible, thermosets compatible

See more products recommended for Fiber Sizing.
Physical Properties

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

AppearanceCloudy solution
pH6.5 - 10.5
Emulsifier ChargeAnionic / Nonionic
Percent Non-Volatile28.0 - 32.0
Recommended pH Range>3.0
Brookfield Viscosity (cps, mPa·s) 25 - 5000
Spindle Number4

Site of Manufacture (and Product Code)

CIN (U601)
AUB (U601.E)


Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice.