gelcoat wax additive

Achieve a hard, tack‑free cure on final gelcoat and polyester resin layers with Fiberlay Surface Seal. This wax‑containing surfacing agent rises to the surface during cure, blocking air inhibition so the top layer fully hardens without sanding for cosmetic finishes.

Wax additive for no‑wax polyester resins and gelcoats
Promotes tack‑free surface cure on final coats
Quart size for production gelcoat work and larger repairs
Ideal for marine, automotive, RV, and composite finishing

Mix into resin/gelcoat before catalyst; follow recommended dosage