Buy Epoxy & Structural Adhesives Online in Australia
Epoxy + Structural Adhesive Selection — Quick Reference
Structural epoxy adhesives create permanent + load-bearing bonds across steel + aluminium + cast iron + composites + engineered plastics. Used where mechanical fasteners alone insufficient or where seal + bond combined required. Devcon + Loctite + Epirez workshop standards.
| Epoxy Type | Best For | Cure / Service |
|---|---|---|
| Devcon Plastic Steel (5min / 30min) | Metal repair + filling — castings + machinery | 5min set / full cure 24h |
| Devcon Plastic Steel Putty | Heavy fill + machinable after cure | Hand-mixed putty consistency |
| Loctite Hysol Structural Adhesive | High-load structural bonds — metal + composite | Various working times |
| Loctite EA 9460 (Toughened) | Vibration + dynamic load — impact-resistant epoxy | Heavy industrial structural |
| Epirez Heavy-Duty Epoxy | Civil + structural + concrete repair | AU brand — civil + maintenance |
| Underwater Epoxy (Wet-Cure) | Marine + submerged + wet-surface repair | Cures in presence of water |
| High-Temp Epoxy (200°C+) | Exhaust + high-temp service | Temperature-resistant formulation |
| Slow-Cure Epoxy (24-48hr) | Large assemblies + extended work time | Long working time |
| Fast-Cure Epoxy (5min) | Quick repairs + production | Set 5min full cure 1-4 hr |
Critical: Match epoxy CURE TIME to job — fast-cure for quick repairs; slow-cure for large assemblies needing repositioning. Surface prep MANDATORY — clean + dry + abraded substrate. Cured strength typically 20-30 MPa shear — comparable to lower-grade fasteners. Don't substitute for high-load structural fastening where AS standards require certified mechanical fasteners. Brands: Devcon, Loctite, Epirez. Companion: adhesives + sealants + tapes, Loctite, epoxy adhesive guide, industrial adhesive types.
Epoxy & Structural Adhesives
Structural epoxy adhesives create permanent, load-bearing bonds across a wide range of substrates including steel, aluminium, cast iron, composites and engineered plastics. AIMS Industrial stocks structural epoxy systems from Devcon and Loctite, used in manufacturing, maintenance and construction for applications where mechanical fasteners alone are insufficient or impractical.
How Structural Epoxies Work
Two-part epoxy structural adhesives consist of a resin and a hardener that are mixed in a defined ratio immediately before application. Once mixed, an exothermic chemical reaction begins — the pot life (working time) before the mix gels typically ranges from 5 minutes to 30 minutes depending on formulation. Full structural strength is typically reached within 24 hours at room temperature.
Loctite Structural Epoxies
Loctite's EA (Epoxy Adhesive) range covers fast-cure and standard-cure formulations for general fabrication, repair and assembly bonding. Loctite EA 9492 and similar systems deliver high tensile and shear strength with gap-filling capability for bonding parts that cannot be machined to a close fit. Dual-cartridge packaging and static mix nozzles eliminate measuring errors and ensure consistent mix ratios on every application.
Devcon Structural Adhesives
Devcon's two-part epoxy systems include the 5-Minute Epoxy for fast-set repairs and assembly, and the Plastic Welder for bonding ABS, polycarbonate and other engineering plastics. Devcon's HP250 and Flexane systems extend the range to flexible and shock-resistant bonding applications on rubber, polyurethane and soft substrates.
Applications
Structural epoxies are used for metal-to-metal bonding in structural assembly, repair of castings and fabricated components, bonding inserts into composite panels, and anchoring studs and fasteners into concrete or metal when mechanical drilling is not preferred. For guidance on selecting the right epoxy system for your application, contact our team. AIMS Industrial has been supporting Australian industry since 1988.
People Also Ask — Epoxy & Structural Adhesives
Q: Why would I choose Loctite EA 9460 over a standard structural epoxy?
Loctite EA 9460 is a toughened, impact-resistant formulation specifically for vibration and dynamic load service, where a standard structural epoxy formulation would be more prone to failure under sustained flexing or impact.
Q: Can Devcon's structural epoxy range bond plastics as well as metal?
Yes — Devcon's Plastic Welder is formulated specifically for bonding ABS, polycarbonate and other engineering plastics, separate from the 5-Minute Epoxy line used for fast-set metal repair and assembly.
Q: Is there a structural epoxy that will cure underwater or on a wet surface?
Yes — underwater (wet-cure) epoxy is formulated to cure in the presence of water, for marine, submerged and wet-surface repair work where a standard epoxy wouldn't set properly.
Q: What's the maximum service temperature for a structural epoxy bond?
Standard structural epoxies aren't rated for sustained high heat — for exhaust systems and other high-temperature service, a dedicated high-temp epoxy formulation (200°C+) is needed instead of the general-purpose range.
Q: Is structural epoxy actually strong enough to replace bolts?
Cured structural epoxy typically reaches 20-30 MPa shear strength, comparable to lower-grade mechanical fasteners — but it shouldn't be substituted for high-load structural fastening where AS standards require certified mechanical fasteners.