Rislone Liquid Copper Block Seal
Intake & Radiator Stop Leak

Rislone® Liquid Copper™ Block Seal Intake & Radiator Stop Leak seals larger leaks regular stop leaks won’t. One step formula permanently repairs leaks in gaskets, radiators, heater cores, intake manifolds, blocks, heads and freeze plugs. Use on cars, trucks, vans, SUV’s and RV’s. Contains an antifreeze compatible sodium silicate liquid glass formula, so no draining of the cooling system is required. Will not harm the cooling system when used properly. Use with all types of antifreeze including conventional green or blue (Silicate-based) and extended life red/orange or yellow (OAT/HOAT) coolant.

Dosage:
Use – 1/2 (half) bottle in a small cooling systems, such as 4 cylinders with no A/C. Use 1 (one) bottle for regular size systems, most 4, 6, 8 and 10 cylinder engines. For larger systems, use 1 bottle for every 6 gallons of cooling system capacity.