P-16 is a Premium Ortho GP, thixotropic, polyester resin designed for fabrication/Repair of small to large FRP parts at an ambient temperature. Good secondary bonding. P-16 is pre-promoted for curing at room temperature with the addition of methyl ethyl ketone peroxide (MEKP) initiator. P-16 is designed to be used with both the spray-up and hand lay application technique. MEKP sold separately. 6 MONTH SHELF LIFE.