In the demanding world of industrial process monitoring, the reliability of critical components is non-negotiable. Infrared (IR) sensors are essential for real-time, non-contact temperature measurement, but their effectiveness is only as strong as the bond that secures them. When these monitoring tools operate in environments ranging from cryogenic to extreme heat—often alongside corrosive chemicals—standard adhesives simply won’t survive.
This is where Ultra-High Temperature (UHT) epoxy systems become indispensable. For engineers and maintenance professionals, choosing the right adhesive for sensor fixing is a direct investment in the longevity, accuracy, and safety of their monitoring equipment.
Why Standard Adhesives Fail in Sensor Fixing
IR sensors in process monitoring equipment often face a triple threat:
- Extreme Thermal Cycling: The epoxy must maintain structural integrity from sub-zero conditions up to 300°C (572°F). Thermal stress causes conventional adhesives to soften, crack, or delaminate.
- Chemical Exposure: In environments like refineries, chemical processing, or submerged applications, the bond must resist prolonged exposure to acids, bases, salts, and organic solvents.
- Vibration and Mechanical Stress: High-performance systems require structural bonds capable of handling high PSI loads without fatigue failure.
A specialized, high-performance solution is required to ensure the sensor’s delicate calibration is preserved and the seal remains intact.
Introducing Epo-Weld™ UHTE-5322: The High-Performance Epoxy for Critical Bonds
For industrial users seeking a bonding system that meets these severe constraints, we recommend the Incure Epo-Weld™ UHTE-5322 Ultra-High Temperature, High Performance Epoxy Bonding System. This two-part (100:12 mix ratio) epoxy is specifically engineered to provide exceptional stability and strength across the harshest operational profiles.
Key Performance Features for IR Sensor Applications
Based on its technical specifications, Epo-Weld™ UHTE-5322 is the ideal solution for IR sensor bonding and pottingin high-temperature process monitoring tools:
| Performance Metric | Epo-Weld™ UHTE-5322 Specification | Industrial Benefit |
| Service Temperature | -75°C to 300°C (-103°F to 572°F) | Ensures sensor mounting integrity from cryogenic to extreme heat environments. |
| Tensile Shear Strength (ASTM D1002) | 2,000 PSI | Provides the necessary mechanical strength for vibration and structural loads. |
| Flexural Strength (ASTM D790) | Up to 16,000 PSI | High rigidity prevents distortion, maintaining sensor alignment and calibration accuracy. |
| Chemical Resistance | Exceptional (Good) | Resistant to submerged applications up to 6 months in various acids, bases, salts, and water. |
| Linear Shrinkage | 0.003 in/in | Crucial for sensitive components; minimizes stress on delicate IR sensor elements during the curing process. |
| Hardness (Shore) | D82 to D92 | A hard, durable finish that protects the sensor and surrounding structure. |
This system is engineered not just to bond, but to become an integral, long-lasting component of the monitoring tool itself, ensuring optimal performance and extended service life.
Achieving Optimal Performance: The Epo-Weld™ UHTE-5322 Cure Schedule
To unlock the full 16,000 PSI flexural strength and 300°C service temperature, a precise, multi-stage cure process is essential. This two-part epoxy requires a careful, controlled application of heat over time:
- Initial Cure: 1 day @ 40°C (104°F)
- Followed By: 1 day @ 25°C (77°F)
- Recommended Post-Cure (High-Temperature Service): 2 hours @ 96°C (203°F) followed by another 2 hours @ 95°C (203°F).
This meticulous cure schedule ensures the polymer structure fully cross-links, delivering the maximum thermal and mechanical properties required for securing high-value IR sensors.
Summary: Your Solution for High-Reliability Sensor Bonding
When your process monitoring tools operate under conditions that would destroy conventional adhesives, compromising the accuracy of your IR sensors is not an option. Epo-Weld™ UHTE-5322 provides the definitive, ultra-high temperature epoxy solution. Its combination of 300°C service temperature, high mechanical strength (up to 16,000 PSI), and exceptional chemical resistance makes it the professional choice for critical bonding and potting applications.
Secure your sensors, secure your process.
Contact our technical team today to discuss how Epo-Weld™ UHTE-5322 can enhance the reliability and performance of your industrial monitoring equipment.