Hercules 30115 Boiler Liquid Stop Leak – 1 Quart

Keep your heating system running efficiently with Hercules 30115 Boiler Liquid Stop Leak, a trusted solution for sealing and repairing leaks in steam and hot water boilers. This professional-grade formula is designed to create a strong, lasting seal without clogging critical components, ensuring reliable performance and extended system life.

Product Overview

Hercules Boiler Liquid Stop Leak is ideal for both new and older installations. It quickly combines with water inside the boiler and forms a tough seal that expands and contracts with heat, resisting high pressure and preventing future leaks. Safe for use in systems with plastic or rubber components, this liquid is free from petroleum distillates and works without causing priming or foaming.

Key Features

• Seals and Repairs: Effectively seals cracks and leaks in steam and hot water heating systems.
• Prevents Surging: Helps maintain stable boiler operation by preventing steam boiler surging.
• Non-Clogging Formula: Will not clog or coat submerged hot water coils, controls, vents, or valves.
• Durable Seal: Expands and contracts with heat, resists high pressure, and withstands boiler cleaners.
• Safe Composition: Contains no petroleum distillates; compatible with systems using plastic or rubber components.
• Easy Application: Combines instantly with water; forms a solid seal as heat vaporizes the liquid.
• Versatile Use: Suitable for repairing leaky joints, sand holes, and corrosion-related cracks.

Specifications

• Brand: Hercules (by Oatey)
• Model: 30115
• Form: Liquid
• Color: Purple
• Odor: Pleasant
• Volume: 1 Quart (32 oz.)
• pH Range: ~6.4
• Viscosity: 10 cPs
• Boiling Point: 100°C
• Flash Point: >100°C
• Composition: Cellulose (approx. 3–5%), Silica crystalline (0.1–1%), Glycol base
• Container Type: Bottle
• Shelf Pack: 12 units

Applications

• Steam Boilers: Ideal for sealing leaks and preventing surging.
• Hot Water Heating Systems: Repairs cracks and leaks without affecting system components.
• New Installations: Fixes minor leaks and imperfections after setup.
• Older Systems: Addresses corrosion-related leaks and cracks for extended service life.