FILCO® 8120 is a non-ionic aqueous dispersion composed of a thermoplastic phenolic resin, formulated as sizing for glass fiber. It excels at providing effective fiber protection, enhancing hydrophobicity, and ensuring resistance against hydrolysis and thermal elements. The product is visually identified by its milky liquid appearance.

Functions: Film Former

Chemical Family: Phenols & Phenolics

Technical Data Sheet

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Identification & Functionality

Chemical Family
Composite Materials Functions

Features & Benefits

Labeling Claims
Product Highlights

FILCO® 8120 is the non-ionic aqueous dispersion of a thermoplastic phenolic resin used as sizing for glass fiber, giving:

  • Good fiber protection
  • Hydrophobicity
  • Hydrolysis and thermal resistance

Applications & Uses

Compatible Reinforcements


Physical Form
Milky liquid
Typical Properties
ValueUnitsTest Method / Conditions
Solid Content50%MA145LFE
Particle Size Distribution
ValueUnitsTest Method / Conditions
Average Particle Size250nmMA147LFE

Packaging & Availability

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

FILCO® 8120 is supplied in steel drums with polyethylene liner, net weight 200 kg.

Storage & Handling

Shelf Life
6 months
Storage and Shelf Life Conditions

FILCO® 8120 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.