Click Bond CB394-43 High Temperature Structural Epoxy Adhesive – 43 mL for Aerospace Bonding
Click Bond CB394-43 is a high-temperature, two-component structural epoxy adhesive engineered specifically for aerospace applications where service temperature requirements exceed the capabilities of standard epoxy systems. It provides exceptional bond strength retention at elevated temperatures while maintaining the chemical resistance and mechanical properties required for aerospace structural bonding of metal and composite aircraft components.
Click Bond is a leading supplier of aerospace fastening and bonding solutions with a strong track record in structural adhesive technology for commercial and military aircraft applications. The CB394 series represents their high-performance high-temperature adhesive product line, qualified for demanding aerospace bonding applications where temperature cycling, vibration, and chemical exposure must be withstood simultaneously.
The 43 mL dual cartridge format provides a practical quantity for structural bonding operations and repair applications, with pre-metered components dispensed through a static mixer for consistent, properly mixed adhesive at every dispense.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | CB394-43 |
| Brand | Click Bond |
| Product Series | CB394 |
| Color | Gray |
| Product Type | Two-Component High Temperature Structural Epoxy |
| Package Size | 43 mL Cartridge |
| Substrate Compatibility | Metal, Composite, Carbon Fiber, Aluminum |
| Application Method | Dual Cartridge Dispenser with Static Mixer |
| Temperature Rating | High Temperature Service |
| Industry Use | Aerospace, Defense, Structural Bonding |
Technical Information
CB394-43 achieves its elevated temperature performance through an epoxy resin system formulated with aromatic hardeners and reactive diluents selected to produce a tightly crosslinked polymer network with a high glass transition temperature (Tg). A high Tg is the key property that determines the upper service temperature of an epoxy structural adhesive — adhesives must be used at temperatures well below their Tg to maintain full structural performance, and CB394’s high-Tg formulation enables service at temperatures that would soften and weaken standard epoxy systems.
The gray pigmentation and filled formulation of CB394 contribute to its thermal performance by improving thermal conductivity and reducing thermal stress buildup in the adhesive layer during heating and cooling cycles. The filler system also reduces the coefficient of thermal expansion (CTE) of the cured adhesive, improving the compatibility of the adhesive thermal response with the metal and composite substrates it bonds.
For maximum high-temperature performance, CB394 should be post-cured at elevated temperature after the initial room-temperature cure per the Click Bond technical data sheet recommendations. The post-cure step advances the epoxy crosslinking to its maximum density, raising the achieved Tg and improving both the high-temperature mechanical properties and chemical resistance of the cured joint.
Why Choose Click Bond CB394?
- ✅ High Temperature Rated — Service above standard epoxy temperature limits
- ✅ Aerospace Qualified — Click Bond aerospace structural adhesive quality
- ✅ Metal and Composite Bonding — Broad substrate compatibility
- ✅ Cartridge Format — Pre-metered, static-mixed delivery system
- ✅ High Bond Strength — Structural performance at elevated temperatures
Applications
CB394-43 is used for structural bonding in high-temperature aircraft zones including nacelle panels, engine pylons, exhaust-adjacent structures, and thermal management assemblies where standard epoxies cannot meet service temperature requirements.
Frequently Asked Questions
Q: What is Click Bond CB394-43 used for?
A: CB394-43 is a high-temperature aerospace structural epoxy used for bonding metal and composite aircraft components in areas subject to elevated service temperatures, such as engine nacelles, pylons, and thermally loaded structures.
Q: What is the MPN for CB394-43?
A: MPN is CB394-43.
Q: What makes CB394 a high-temperature epoxy?
A: CB394 is formulated with aromatic hardeners that produce a tightly crosslinked epoxy network with a high glass transition temperature (Tg), enabling the adhesive to maintain structural performance at temperatures that would soften standard epoxy systems.
Q: Does CB394-43 require a post-cure?
A: For maximum high-temperature performance, an elevated temperature post-cure is recommended per the Click Bond CB394 TDS. The post-cure maximizes crosslink density and improves high-temperature mechanical properties.
Q: What substrates does CB394-43 bond?
A: CB394-43 bonds aluminum alloys, steel, titanium, carbon fiber composites, and fiberglass in aerospace structural applications.
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