SuperFill Expoxy Filler


An ultra lightweight corrosion-inhibiting filler for aircraft, marine, and automotive use. Adheres to composites, bare aluminum, steel, and bare or varnished wood.

Epoxy resin with non-MDA hardener. Ships non-hazardous. Apply EP-420 Epoxy Primer directly over SuperFil.


COMPOSITE FILLING: Use as you would an epoxy micro slurry. Mix by weight for best results. Scuff-sand smooth surfaces before application. Trowel or squeegee to desired thickness. After drying, sand to shape, and finish. Works as an excellent fillet material.

BARE ALUMINUM: Scuff surface with a Scotch-Brite pad. Treat bare aluminum with E-2300 Conversion Coating prior to application. Apply EP-420 Primer directly over dried SuperFil.

BARE STEEL: Clean off all rust and oil, and wipe with C-2200 Metl-Sol.

VARNISHED OR BARE WOOD: Scuff-sand and clean as necessary. EV-400 Epoxy Varnish may be applied directly over SuperFil.


By Weight (preferred):

2 parts A to 1 part B

By Volume:

2 parts A to 1 part B

Thoroughly stir each individual container of part A and part B before combining. Resin or hardener can separate from fillers during storage. After combining parts A and B, scrape the sides of the mixing container to insure a thorough blend. Mix to a consistent light blue color.


Allow to cure at 70° or above for best results. Lower temperatures will lengthen the cure time.

Dry film cure: 8 hours at 77°

Cure to sand: 12 hours at 77°


One hour at 77°


MEK before curing occurs


Two years unopened. Avoid storage above 100°. Resin will separate from filler during storage. Remix thoroughly.


Quart kit (yields 1 quart). Industrial kit (yields 3 gallons).