Black Swan Liquid Boiler Stop-Leak – Boiler Leak Sealer for Steam & Hot Water Boilers – High & Low Pressure Heating Systems – Permanent Leak Repair – 1 Quart
- LASTING BOILER LEAK REPAIR Designed to repair leaks in steam and hot water boilers. Works in both high and low pressure systems without requiring system shutdown.
- HANDLES EXTREME SYSTEM CONDITIONS Works effectively in high temperatures and pressures while withstanding expansion, contraction, and vibration within heating systems.
- TARGETS LEAKS DIRECTLY Sticky liquid combined with heavy-duty particles flows through the system to locate leaks, plug openings, and form a durable seal.
- SAFE FOR BOILER SYSTEMS Harmless to metal components and designed to seal leaks without clogging or interfering with normal system operation.
- EASY POUR-IN APPLICATION Simply pour the liquid into a hot boiler through a convenient opening and allow it to circulate until leaks are sealed.
- PERMANENT SEAL FORMATION Particles harden over time to create a long-lasting repair that restores boiler performance.
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Black Swan Liquid Boiler Stop-Leak – Boiler Leak Sealer for Steam & Hot Water Boilers – High & Low Pressure Heating Systems – Permanent Leak Repair – 1 Quart
Black Swan Liquid Boiler Stop-Leak – Boiler Leak Sealer for Steam & Hot Water Boilers – High & Low Pressure Heating Systems – Permanent Leak Repair – 1 Quart
- LASTING BOILER LEAK REPAIR Designed to repair leaks in steam and hot water boilers. Works in both high and low pressure systems without requiring system shutdown.
- HANDLES EXTREME SYSTEM CONDITIONS Works effectively in high temperatures and pressures while withstanding expansion, contraction, and vibration within heating systems.
- TARGETS LEAKS DIRECTLY Sticky liquid combined with heavy-duty particles flows through the system to locate leaks, plug openings, and form a durable seal.
- SAFE FOR BOILER SYSTEMS Harmless to metal components and designed to seal leaks without clogging or interfering with normal system operation.
- EASY POUR-IN APPLICATION Simply pour the liquid into a hot boiler through a convenient opening and allow it to circulate until leaks are sealed.
- PERMANENT SEAL FORMATION Particles harden over time to create a long-lasting repair that restores boiler performance.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
- LASTING BOILER LEAK REPAIR Designed to repair leaks in steam and hot water boilers. Works in both high and low pressure systems without requiring system shutdown.
- HANDLES EXTREME SYSTEM CONDITIONS Works effectively in high temperatures and pressures while withstanding expansion, contraction, and vibration within heating systems.
- TARGETS LEAKS DIRECTLY Sticky liquid combined with heavy-duty particles flows through the system to locate leaks, plug openings, and form a durable seal.
- SAFE FOR BOILER SYSTEMS Harmless to metal components and designed to seal leaks without clogging or interfering with normal system operation.
- EASY POUR-IN APPLICATION Simply pour the liquid into a hot boiler through a convenient opening and allow it to circulate until leaks are sealed.
- PERMANENT SEAL FORMATION Particles harden over time to create a long-lasting repair that restores boiler performance.









