PhixDoctor's SunPowered Epoxy Repair Kit comes with a non-yellowing resin that gels within 15 seconds in full sun on it's way to a crystal clear full cure in less than 2 minutes. Ther is everything in the box you'll need to maintain your board in top running condition. The Phix Doctor packaging is 26 times less carbon intensive than the competition and the resin shelf life is guaranteed for one full year! You get more resin, higher quality ingredients packaged in earth friendlier containers and the satisfaction of knowing you're contributing to the Surfrider Foundation and SurfAid with every purchase.