Vacuum system threads (connections for vacuum pumps, chambers, or process lines) require a sealant that provides an absolute, airtight seal to prevent atmospheric leaks from compromising the vacuum level. While the pressure differential is critical, the components in these systems (like sensors, gauges, and pumps) often need to be removed for cleaning, calibration, or replacement.
This demands a sealant that provides a secure, leak-proof seal with Medium Strength, allowing for non-destructive disassembly.
INCURE ProGrip™ 206 Medium Strength Thread Sealant
The INCURE ProGrip™ 206 Thread Sealant is the ideal solution. It is specifically formulated to handle high-pressure applications, which translates into excellent performance in creating an airtight seal against low pressure (vacuum), while maintaining the medium strength bond crucial for serviceable components.
| Key Feature | Performance for Vacuum System Threads |
| Medium Strength (Yellow) | Provides a secure, airtight seal that resists loosening from pump vibration but allows for disassembly with standard hand tools for maintenance. |
| High Sealing Capability | Although rated for high pressure (up to 69 MPa or 10,000 psi), this rating guarantees the sealant’s ability to create a flawless, non-porous seal necessary for deep vacuum integrity. |
| Temperature Range | Excellent temperature resistance (up to 150∘C), safely handling operational heat from pumps or processes. |
| Low Viscosity | Ensures easy application and penetration into fine or tapered pipe threads, creating a full vacuum seal. |
Application Steps: Sealing Vacuum System Threads
For maximum reliability and a serviceable joint, follow these steps:
- Preparation: Clean both the male and female threads thoroughly to remove all old sealant, oil, grease, and residue. Use an appropriate industrial cleaner (e.g., acetone) and wipe dry.
- Application: Apply a continuous, thin bead of ProGrip™ 206 around the male thread, skipping the first thread. Ensure full coverage over the engaged threads.
- Assembly: Immediately thread the fitting into the port and tighten to the manufacturer’s specified torque.
- Curing: Allow the sealant to cure for a minimum of 24 hours to reach full strength before pulling a vacuum on the system.