Quantum 4599 is a fast-dry epoxy/urethane primer sealer designed for spot, panel, and overall repairs. It provides excellent flow and levelling, topcoat holdout, and fast overcoat and nib sanding times.
Quantum 4599 is designed to spot prime a finish primed surface where breakthrough has occurred to seal underlying products. Quantum 4599 can also be used as the finish primer for properly prepared gelcoat and fiberglass surfaces where fairing and surfacing are not required. Sanding is not required prior to applying Quantum99 Polyurethane Topcoat within the recoat window.