If you have ever used a single component, self-leveling, polyurethane sealant for gaps, joints and cracks you know that after it has failed or left the bond with the sidewall…you have to painstakingly remove the product and scrape it out! You don’t have to worry about that with Crack Stix! Whether you use a heatgun, a handheld torch or our new CSX-1000 PRO MELT Torch – you will seal your crack or joint permanently with a durable, flexible seal. And though it shouldn’t open up, if it does, simply reheat the product or add more if need be. You DON’T have to scrape it out like you do with other products!