WHITE ORCA Guard NO WAX is an ISO NPG HIGHEST GRADE, thixotropic, polyester gel coat designed for cosmetic concealment of small to large FRP parts at an ambient temperature. Orca Guard is pre­ promoted for curing at room temperature with the addition of methyl ethyl ketone peroxide (MEKP) initiator. Orca Guard is designed to be used with both the spray-up and hand lay application technique and drys with a surface tack for secondary bonding or in mold applications. If you desire full cure use the waxed version on all external final coats or other additives. 3 Month Shelf Life.