Super Seal Pli-Stix 30 ft. Medium Permanent Blacktop Crack Filler is the only permanent solution to blacktop cracks on the marketplace. It is the same product seen on highways and roads but the only difference is you can apply it and don't need a 200 gallon melter to do it! The Medium Pli-Stix is designed for cracks 1/2 inch to 1 inch in diameter. Just clean out crack, pack and melt with any household torch or heat gun.