Interlux Interfill 833 Fast Cure Epoxy Finishing Fairing Compound 2-part epoxy putty designed for fairing and smoothing a surface when a fine finish is required. Interfill Epoxy Filler can be used above the waterline to prepare the surface prior to applying topside finishes, and can be used to fill pinholes between coats of two-part polyurethanes due to its ability to trowel to a very line, smooth finish. Interfill Epoxy Filler can also be used below the waterline to fill blisters and as part of a keel fairing system. THIS IS A TWO PART GALLON KIT SOLD AS A SET
 
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Plastic Spreader