Clear Gel Coat Size:5 Gallon Pail 300 Mini Pumps are calibrated

300 Mini Pumps are calibrated to deliver the proper working ratio with one full pump stroke of resin for each one full pump stroke of hardener

Silmar 249A is the primary surfboard laminating resin used by the surfboard manufacturing industry worldwide

The 8’4” SP allows for funboard

Hegman Fineness (Minimum) : 5

From boats

Clear Gel Coat Size:5 Gallon Pail 300 Mini Pumps are calibratedGelcoat is a highly durable coating and is the outermost structural layer on a fiberglass part, designed to protect the underlying fiberglass layers. Gelcoat is a compound that produces a high quality finish. When cured, gelcoat combines with fiberglass to produce a smooth and durable surface that retards structural weakening from things such as water intrusion and ultraviolet light. Catalyst sold separately CLICK HERE Catalyst mixing chart CLICK HERE