Industry-leading Ultraseal™ tire sealer prevents flats and blowouts by coating the inner surface of the tire, immediately sealing punctures. Ultraseal™ comes in three grades, suitable for virtually any pneumatic tire–from riding mowers to passenger cars to construction equipment... even bicycles! Commercial Grade Ultraseal™ by Gemplers – Seals up to ¼” punctures in tubeless tires; for high speed vehicles or off-road machinery. Ideal for cars, ATVs, trucks or farming equipment. Bulletproof Grade Ultraseal™ by Gemplers - Seals up to ½” punctures in tubeless tires, for slow moving (under 25 mph) vehicles. Extreme Grade Ultraseal™ by Gemplers – Seals up to ½” punctures in tubeless tires, for for high speed vehicles or off-road machinery. For virtually any pneumatic tire. When you need the best, you need Ultraseal™ by Gemplers. Shop Ultraseal and other flat prevention products at Gemplers.