FILCO® 7707 is an aqueous dispersion featuring an aliphatic, blocked polyurethane resin formulated for glass fiber sizing. This innovative resin ensures exceptional characteristics, including high hydrolytical resistance, compatibility with PA matrices, and the ability to significantly enhance the mechanical properties of the final composite material.

Functions: Film Former

Chemical Family: Polyurethanes (PU)

Compatible Polymers & Resins: Polyamides

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Chemical Family
Composite Materials Functions
Product Families

Features & Benefits

Labeling Claims
Materials Features
Product Characteristics

FILCO 7707 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 Content40%MA145LFE
Particle Size Distribution
ValueUnitsTest Method / Conditions
Average Particle Size650nmMA147LFE

Packaging & Availability

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

FILCO® 7707 is supplied in steel drums with polyethylene liner, net weight 200 kg.

Storage & Handling

Shelf Life
6 months
Storage Conditions

FILCO® 7707 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.