System Three General Purpose Resin is the workhorse of the System Three product line. Fits well into over 90% of all epoxy applications. General Purpose Epoxy has excellent pot life and cure-time control. When selecting a hardener consider the minimum temperature expected during application and the required pot life. Combine different System Three General Purpose Epoxy Hardeners to provide a continuous range of cure times. Refer to the Epoxy Book to make a proper selection. System Three General Purpose Epoxy works great for new wood construction and repair, for gel coat blister repair, and for general fiberglass boat repair. Use at a simple 2:1 volume ratio with any of the three hardeners. Use at temperatures as low as 35°F. with no limitations on humidity. The medium-low viscosity of System Three Epoxy allows for use "as is" for coating and fiberglass work. Combine with different fillers to make excellent adhesive, filleting and fairing compounds. Color: Amber