Feb 23, 2010 · For a new boiler, fill the boiler partially with water. Run it with the temperature normally. Remove the safety fitting or valve. Pour one quart of the sealant in the opening. (Some products will recommend two quarts.) Close the opening and fill up the system. Maintain the temperature until the water has circulated.
Hercules 32 oz. Boiler Liquid-30115 - The Home Depot
Vacuum Seal and O-Ring Grease A firm consistency and resistance to evaporation make this grease ideal for vacuum applications, such as flow meters, vacuum and pressure systems, and laboratory equipment. Apply directly to seals and O-rings to prevent drying and cracking. NLGI viscosity grade is a rating of a grease's consistency.
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How to Apply Boiler Sealer Properly | DoItYourself.com
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. Plumbers have come to trust the Hercules offering to provide the highest quality of plumbing products. Available in 2 variations
Nov 06, 2017 · Product Overview. Hercules 1 qt. Boiler Liquid is used to seal and repair cracks and leaks that appear in steam and hot water systems. The odor-free formula creates a tough seal that expands and contracts with heat. NSF registered and USDA authorized. Seals and repairs cracks and leaks in steam and hot water systems.