Loctite EA 608 HYSOL Epoxy-Patch Clear Structural Epoxy Adhesive – 50 mL Dual Cartridge
Loctite EA 608 HYSOL Epoxy-Patch is a premium two-component, clear structural epoxy adhesive from Henkel, formulated for high-performance bonding in aerospace, defense, and industrial applications. Its clear formulation provides a virtually invisible bond line on transparent and lightly colored substrates, while delivering the high bond strength and chemical resistance expected of HYSOL aerospace-grade structural epoxies.
The 50 mL dual cartridge format delivers pre-metered base and hardener in the correct mixing ratio through a static mixer nozzle attached to the cartridge, ensuring consistent mix ratio and eliminating manual weighing errors. The static mixer blends the two components thoroughly during extrusion, delivering ready-to-use mixed adhesive at the cartridge tip for immediate application to the bonding surfaces.
EA 608 HYSOL is designed for structural bonding of metals, composites, ceramics, and dissimilar material combinations in demanding aerospace and defense applications where high bond strength, chemical resistance, and service temperature performance are required. Its gap-filling capability accommodates minor surface irregularities and machining tolerances in bonded assemblies.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 398455 |
| Brand | Henkel / Loctite |
| Product Name | LOCTITE EA 608 HYSOL Epoxy-Patch |
| Color | Clear |
| Product Type | Two-Component Structural Epoxy Adhesive |
| Package Size | 50 mL / 1.69 oz Dual Cartridge |
| Substrate Compatibility | Metal, Composite, Plastic, Ceramic |
| Application Method | Dual Cartridge Dispenser with Static Mixer |
| Cure Type | Two-Component Epoxy — Room Temperature Cure |
| Industry Use | Aerospace, Defense, Industrial, MRO |
Technical Information
Loctite EA 608 HYSOL is based on a bisphenol-A epoxy resin system cross-linked with a high-performance hardener to form a fully cured thermoset epoxy network with excellent mechanical properties. The cured epoxy provides high tensile and shear strength, good impact resistance, and outstanding chemical resistance to fuels, oils, solvents, and aerospace cleaning agents.
The dual cartridge packaging maintains the reactive base and hardener components completely separated until the static mixer nozzle is attached and material is dispensed. The first portion dispensed from a newly attached mixer should be discarded to ensure the mixed ratio is correct before applying adhesive to the bonding surfaces. Subsequent dispenses from the same mixer will be correctly mixed.
Surface preparation significantly affects the bond strength of EA 608 HYSOL. Metal surfaces should be abraded and solvent cleaned, or chemically etched for maximum bond strength. Composite surfaces require light abrasion and solvent wipe. Proper surface preparation ensures the adhesive makes full molecular contact with the substrate surface, maximizing the adhesive bond area and strength of the completed joint.
Why Choose Loctite EA 608 HYSOL?
- ✅ HYSOL Aerospace Grade — Henkel’s trusted aerospace structural epoxy brand
- ✅ Clear Formulation — Invisible bond line on light and transparent substrates
- ✅ Dual Cartridge Convenience — Pre-metered, no manual weighing required
- ✅ High Bond Strength — Structural bonding of metals, composites, ceramics
- ✅ Chemical Resistance — Resists aerospace fuels, oils, and solvents
Applications
EA 608 HYSOL is used for aerospace structural repair, composite bonding, metal-to-composite bonding, sensor attachment, electronic component potting, and general industrial structural assembly requiring clear, high-strength epoxy adhesive performance.
Frequently Asked Questions
Q: What is Loctite EA 608 HYSOL Epoxy-Patch?
A: EA 608 HYSOL is a two-component clear structural epoxy adhesive from Henkel, designed for high-strength structural bonding of metals, composites, and ceramics in aerospace and industrial applications.
Q: What is the MPN for Loctite EA 608 50mL?
A: MPN is 398455. Product: Henkel 83075 LOCTITE EA 608 HYSOL.
Q: How do I use the dual cartridge dispensing system?
A: Attach the static mixer nozzle to the dual cartridge, dispense and discard the first small amount to ensure correct mixing, then apply the mixed adhesive directly from the mixer tip to the bonding surface.
Q: What substrates does EA 608 HYSOL bond?
A: EA 608 HYSOL bonds metal, composite, plastic, and ceramic substrates. For maximum strength, surfaces should be lightly abraded and solvent cleaned before bonding.
Q: What is the cure time for Loctite EA 608?
A: EA 608 cures at room temperature. Refer to the Henkel technical data sheet for specific tack-free, handling strength, and full cure times at various temperatures.
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