This MEKP is the catalyst/hardening agent for polyester resins and polyester gelcoats. This item has a shelf like of approximately 2-3 months. One gallon will cure approximately 100 gallons of resin and 50 gallons of gelcoat.
This item is flammable and can only be shipped by ground. If you paid for expedited shipping, we will refund you the difference for it to be shipped by ground.
Please Note: Hardener / Catalyst has a 12 month shelf-life.
*NOTE: We cannot ship quantities of this product over 1 quart in the same box. If you order more than 1 quart, our shipping calculator will not reflect the additional shipping charges and we may have to call you with an updated shipping price. We apologize for any inconvenience this may cause.