SealBoss® 6500 QuickFix is a technologically advanced self leveling, two component, 1:1 ratio, 100% solids, flexible polyurea elastomer product. SealBoss® 6500 QuickFix is a high quality joint and crack filler for concrete substrates in applications that are time critical. It works well in adverse temperature conditions as the material cures in ambient temperatures from -28C (-20F) to 54C (130F). The tack free time is 5 to over 15 minutes depending on temperature. This permits to reopen the job site to vehicle and foot traffic just one hour after the application. Exposure to sunlight (UV) may cause discoloration, however the physical properties are essentially unaffected. The product is for professional use.