Steam system flange joints (on condensate lines, low-pressure steam headers, or heat tracing systems) are seals for a highly dynamic environment. They must contain hot, pressurized steam and corrosive condensate while enduring continuous thermal cycling and potential vibration. A leak in a steam line is a severe energy loss, a safety hazard, and a source of accelerated corrosion.
Don’t rely on cumbersome cut gaskets that fail to adapt to repeated thermal expansion and contraction.
INCURE HeatGrip™ 508 Flexible Anaerobic Flange Sealant for Aluminum
While the HeatGrip™ 503 offers the highest temperature resistance, low-to-moderate pressure steam systems often involve components that benefit from flexibility due to thermal cycling and the need for future maintenance. The INCURE HeatGrip™ 508 provides the necessary flexibility and superior solvent/chemical resistance to combat the constant presence of corrosive condensate and water treatment chemicals, all while permitting easier non-destructive disassembly than a rigid sealant.
| Feature & Benefit | Technical Insight for Steam Flanges | Conversion Value |
| Excellent Flexibility | Cures to a tough, elastic seal that absorbs continuous thermal cycling (expansion/contraction) without fatiguing or cracking the seal line. | End the Cycle Failure: Get a seal that moves with the pipeline, maintaining integrity through heating and cooling cycles. |
| Superior Fluid Immunity | High chemical resistance ensures the seal is unaffected by hot condensate, water treatment chemicals, and steam exposure in the operating range. | Corrosion Control: Trust a barrier that won’t break down or allow leakage that accelerates external flange corrosion. |
| Easy Disassembly | Designed for strong sealing yet allows for non-destructive part separation, simplifying future pipe alterations or valve replacements. | Service Smarter: Seals tightly now, and permits easy removal for maintenance without flange scraping. |
| Gap Sealing Capability | Effectively seals minor imperfections in flange faces, common after years of exposure to steam and maintenance procedures. | Bridges Imperfections: Creates a perfect, gap-free seal on used or slightly irregular pipe flanges. |
Application Steps: Sealing Steam Flanges for Permanent Integrity
Preparation (Critical Cleaning): Thoroughly clean both flange faces—remove all previous gasket material, thread compound, and corrosion. Remove all traces of condensate or water. Use a degreasing solvent (like acetone) and wire brush/wipe until the metal surfaces are perfectly dry and spotless.
Application: Apply a continuous, thin bead of HeatGrip™ 508 onto one flange face, circling all bolt holes. Use a roller or spreader to create a uniform, thin film across the entire mating surface.
Assembly: Immediately mate the two components (within 5 minutes). Torque the bolts incrementally to the manufacturer’s specified pattern and value to ensure even clamping and proper anaerobic curing.
Curing Time (Mandatory): Allow a full 24 hours for the sealant to achieve its final strength and full chemical resistance before introducing steam or subjecting the pipeline to operational temperatures and pressure.
Stop risking energy loss and minimize corrosion on your critical steam and condensate systems.