The Ideal 176574 Silicon Seal 100 mm Blue (41.008.17.46) is a genuine replacement sealing component designed for use in compatible Ideal boiler flue systems. It provides a flexible, heat-resistant seal at 100 mm flue connection points to prevent leakage of combustion gases and ensure a secure joint.

Function & Purpose

This silicon seal creates an airtight barrier around flue joints, helping to contain combustion gases within the flue system and prevent them from escaping into the surrounding environment. The flexible silicon material accommodates slight movement and thermal expansion, maintaining a reliable seal over time. Replacing a worn, degraded, or brittle seal helps restore correct flue integrity and supports safe boiler operation.

Compatibility

The 176574 Silicon Seal is engineered to match original equipment specifications for flue systems that require a 100 mm diameter seal. It is designed for accurate fitment and dependable performance when installed in compatible boiler flue assemblies.

Build Quality

As an authentic Ideal spare part, this silicon seal is manufactured to high quality standards. The silicon material is chosen for its heat resistance, flexibility, and long-term durability under the thermal and environmental conditions typical of boiler flue systems.

Ideal Applications

This silicon seal is ideal for heating engineers, service technicians, and installers performing flue system assembly, maintenance, or part replacements. It is particularly useful when existing flue seals are cracked, brittle, or no longer providing an effective gas-tight connection, helping to restore safe and efficient venting performance.