FILCO® 7704 is an aqueous dispersion comprising an aliphatic, blocked polyurethane resin, specifically designed as a sizing agent for glass fiber applications. This innovative resin offers exceptional attributes, including high hydrolytical resistance, excellent compatibility with PA matrices, and the ability to impart elevated mechanical properties to the final composite.

Functions: Film Former

Chemical Family: Polyurethanes (PU)

Compatible Polymers & Resins: Polyamides

Technical Data Sheet

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Identification & Functionality

Chemical Family
Composite Materials Functions

Features & Benefits

Product Characteristics

FILCO® 7704 is the aqueous dispersion of an aliphatic, blocked polyurethane resin in water emulsion, used as sizing for glass fiber, giving:

  • High hydrolytical resistance
  • Good compatibility with PA matrices
  • High mechanical properties of final composite

Applications & Uses

Compatible Polymers & Resins
Compatible Reinforcements


Physical Form
Milky liquid
Typical Properties
ValueUnitsTest Method / Conditions
Solid Content44%MA145LFE
Particle Size Distribution
ValueUnitsTest Method / Conditions
Average Particle Size650nmMA147LFE

Packaging & Availability

Packaging Type
Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

FILCO® 7704 is supplied in steel drums with polyethylene liner, net weight 200 kg.

Storage & Handling

Shelf Life
6 months
Storage Conditions

FILCO® 7704 should be stored at a temperature between + 5°C and + 30°C. Maximum suggested storage time is 6 months from production, in the original package. After that date product must be rechecked.