3127 PSI: Higher strength formula. Strength 3127 PSI. Set time 6 minutes. Cure time 4-6 hours. Cure color dark grey. Sets in 6 minutes. Works on multiple surfaces. Metal, wood, plastic, tile, PVC, ceramic, fiberglass, concrete & more. About KwikWeld: KwikWeld is a fast setting version of The Original J-B Weld two-epoxy Cold-Weld system that provides strong, lasting repairs to metal and multiple other surface types. After mixing, it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled after curing. KwikWeld has a 1:1 mixing ratio, sets in 6 minutes and is fully cured in 4-6 hours. KwikWeld cures to a dark grey color, is rated at a tensile strength of 3127 PSI and will withstand temperatures up to 300 degrees F. Applications & Uses: metal; home repairs; marine; plastic & PVC; auto; agricultural & equip; wood; industrial; motorcycle; concrete; outdoor equip.; toys; ceramic & tile; craft; plumbing; fiberglass; truck. www.jbweld.com Made in USA.