Vacuum pump housings (on rotary vane, piston, or screw pumps) are seals for one of the most demanding tasks:maintaining an internal pressure far below ambient. They must prevent atmospheric intrusion (which cripples efficiency), contain hot lubricating oil, and endure constant vibration and internal heat generated during operation. A leak at this flange is disastrous, making it impossible to pull the required vacuum level and leading to failure in critical processes like drying, molding, or testing.
Don’t let a minor flange failure compromise your entire process’s vacuum integrity.
INCURE HeatGrip™ 503 High-Temp Anaerobic Flange Sealant
Vacuum pump casings are typically built with high-tolerance, rigid, precision-machined flanges. These parts require a seal that is rigid and high-strength to maintain component alignment and absolute leak integrity against the strong outside force of atmospheric pressure. The INCURE HeatGrip™ 503 is engineered for these extreme vacuum and temperature operating conditions, creating a permanent, rigid barrier that ensures zero porosity.
| Feature & Benefit | Technical Insight for Vacuum Pump Housings | Conversion Value |
| Superior Pressure Resistance | Cures to a high-strength, rigid plastic that provides maximum resistance to the overwhelming external force of atmospheric pressure seeking intrusion. | Lock Out the Air: Achieve an absolute, high-integrity seal that prevents micro-leaks and maximizes vacuum depth. |
| High-Temperature Stability | Rated for continuous operation up to 200∘C (392∘F), ensuring the rigid seal remains stable even with the high operational heat generated by pump friction. | End the Heat Wars: Get a seal that refuses to degrade under maximum thermal load. |
| Oil & Gas Immunity | Chemically inert to vacuum pump oils, synthetic lubricants, and process gases, preventing the degradation of the seal material. | Protect Your Oil: Ensure the sealant won’t break down or contaminate the vital pump lubricating oil. |
| Minimal Gap Sealing | The 503 is ideal for close-tolerance, rigid flanges typical of precision-machined pump casings, forming a perfect, gap-free seal. | Precision for Vacuum: Trust a seal designed for the tight tolerances required to achieve deep, reliable vacuum levels. |
Application Steps: Sealing Vacuum Pump Housings for Permanent Integrity
Preparation (Critical Cleaning): Thoroughly clean both flange faces—remove all previous gasket material, residue, and saturated vacuum oil. Use a degreasing solvent (like acetone or industrial cleaner) and wipe until the metal surfaces are perfectly dry and spotless.
Application: Apply a continuous, thin bead of HeatGrip™ 503 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 housing segments (within 5 minutes). Torque the bolts to the manufacturer’s specified pattern and value to ensure even clamping and proper anaerobic curing.
Curing Time (Critical): Allow a full 24 hours for the sealant to cure completely. This time is mandatory to achieve maximum pressure and thermal resistance before subjecting the pump to operational vacuum and heat.
Stop risking leaks and maximize your process’s efficiency and vacuum depth.