2 new 32oz bottles of boiler repair liquid

Repairs leaks in steam and hot water boilers

Hercules Boiler Liquid seals and repairs cracks and leaks in steam and hot water systems. Prevents steam boiler surging and will not clog or coat submerged hot water heating coils, controls, vents or valves.

Makes a strong, lasting repair on difficult leaks in steam boilers

Prevents steam boiler surging

Will not clog or coat submerged hot water heating coils, controls, vents or valves

Resists high pressure and is not affected by boiler cleaners

Will not cause priming or foaming

Contains no petroleum distillates and is safe to use in boilers and systems with plastic or rubber components