FILCO® 308G is an epoxy resin formulated within an ionic water emulsion, distinguished by specific characteristics which includes a pure epoxy resin composition, an anionic emulsion nature, a narrow particle size distribution, and robust mechanical shear stability, even in diluted emulsions.

Functions: Film Former

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet

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Identification & Functionality

Composite Materials Functions

Features & Benefits

Labeling Claims
Product Highlights

FILCO® 308G is an epoxy resin in an ionic water emulsion.

  • Pure epoxy resin
  • Anionic emulsion
  • Epoxy Eq. Wt. ~ 250 g
  • Average particle size ~ 600 nm
  • Narrow particle size distribution
  • Good mechanical shear stability of the diluted emulsion.
Characteristics of Film

Characteristics of the dried film:

  •  clear
  •  tacky film.

Applications & Uses

Compatible Reinforcements

FILCO® 308G main application:

  •  sizing for carbon fibers.


White emulsions
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, #3, 20rpm)max. 3000mPa.sMA143LFE
Solid Content53 - 57%MA145LFE
pH (at 20°C)6.5 - 8-MA148LFE
Epoxy Equivalent Weight (on dry resin)220 - 290gMA149LFE
Particle Size Distribution
ValueUnitsTest Method / Conditions
Average Particle Size300 - 800nmMA147LFE

Packaging & Availability

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

FILCO® 308G is supplied in steel drums with a polyethylene liner, net weight 200 kg .

Storage & Handling

Shelf Life
12 months
Storage and Shelf Life Conditions

FILCO® 308G should be stored in closed drums at temperatures between 5° C and 30°C. Maximum suggested storage time is 6 months from production. After that date the product must
be rechecked. During storge a slight settlement can take place, wich can easily be eliminated by careful stirring.