High Temperature Adhesives
What are High Temperature Adhesives?
High temperature adhesives are adhesives that permanently withstand high operating temperatures while maintaining their mechanical, chemical, and electrical properties. These special formulations enable reliable bonding in thermally demanding environments.
Properties of High Temperature Adhesives
- Operating temperatures up to 300°C and above
- High glass transition temperature for dimensional stability
- Minimal thermal expansion
- Oxidation resistance at high temperatures
- Long-term stability under temperature stress
- Resistance to thermal cycles
Chemical Systems
- Epoxy resins: Excellent adhesion and chemical resistance
- Polyimides: Highest temperature resistance up to 400°C
- Silicones: Flexible connections at extreme temperatures
- Phenolic resins: Cost-effective solutions for industrial applications
Applications
- Electric Motor Bonding: Stator and rotor components
- Semiconductor Packages: High-performance electronics housings
- Aerospace: Structural bonding in engines
- Furnace construction: High-temperature insulation and sealing
Test Standards
- ISO 11003: Long-term temperature resistance
- ASTM D2919: High-temperature shear strength
- MIL-STD: Military high-temperature requirements
- Automotive Standards: Engine compartment qualifications
Processing Guidelines
- Defined curing cycles for optimal properties
- Substrate preheating for stress reduction
- Dispensing with special valves at elevated temperature
- Protective atmosphere to prevent oxidation
DELO Adhesive Solutions
- Various viscosities for optimal droplet formation
- UV-curing and thermally curing systems
- Special formulations for optical applications
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