Flue Jointing Compound 500G Fjc

Flue Jointing Compound 500G Fjc

Flue Jointing Compound (FJC) is a specialist, high-temperature sealant specifically formulated for use in the installation and maintenance of flue systems. This 500g tub provides a professional-grade solution for sealing the joints of flue pipes for gas, oil, and solid fuel appliances. It is engineered to create a gas-tight seal that can withstand the extreme thermal cycles and corrosive by-products found in modern exhaust systems.

Key Features and Application
High Temperature Resistance: Designed to maintain a stable, flexible seal at high operating temperatures, ensuring the integrity of the flue even under intense heat.

Gas-Tight Performance: Specifically manufactured to prevent the leakage of combustion products (such as carbon monoxide) into the living space, which is critical for safety and building regulation compliance.

Material Compatibility: Ideal for use on stainless steel, vitreous enamel, and other metallic flue components.

Non-Setting/Semi-Setting Properties: Remains sufficiently flexible to accommodate the thermal expansion and contraction of flue sections, preventing the seal from cracking or crumbling over time.

Easy Application: The smooth consistency allows for easy application via brush or spatula into the socket and spigot joints of the flue system.

The Installer's Advantage
For the Gas Safe or HETAS registered engineer, FJC is an essential consumable. Unlike standard silicone or plumbing pastes, Flue Jointing Compound is specifically chemically resistant to the acidic condensates produced by high-efficiency boilers and stoves. Using the correct compound ensures that the flue system passes its integrity pressure test first time, reducing the risk of dangerous gas leaks and ensuring a long-lasting, maintenance-free installation.

Essential Companion Products
To ensure a safe and compliant heating installation, the following components are recommended:

Joint Integrity (Water/Gas Threads): For the pipework leading to the appliance, use Hawk Jointing Compound (400g) on threaded connections.

System Protection: Ensure the boiler's heat exchanger is protected from internal debris with Hinton H14 System Inhibitor.

Radiator Control: Manage the output of your heating system with high-efficiency valves like the Drayton TRV4 Classic Angled TRV.

Specialist Support and Local Collection
Need advice on the specific requirements for twin-wall or single-wall flue sealing? Our trade counter is stocked with specialist flue components and sealants for all appliance types.

Visit our trade counter and Bathroom Showroom at 61 Fullers Road, E18 2QB for expert advice and quick access to parts.