BOILER SOLDER - 1 LB.

This 1-pound powdered boiler stop-leak seals cracks in steam and hot-water boilers from the inside. Mixed into the system water, it circulates to trouble spots and forms a tough seal that expands and contracts with the boiler metal.

Key Features:

• Powdered Stop-Leak -- Added to system water to find and seal cracks inside the boiler.
• Steam and Hot Water -- Suited to both steam and hydronic hot-water boilers.
• Tough Flexible Seal -- Forms a seal that expands and contracts with boiler metal.
• 1 lb Container -- Treats common residential and light-commercial systems.

Where to Use:

• Building maintenance -- Sealing cracks in steam and hot-water boilers from the inside
• Boiler service -- Powdered stop-leak treatment during heating repairs
• Heating upkeep -- Extending the service life of leaking boilers