Description
Araldite AV 8503 is the resin side of a Huntsman two-component paste epoxy system paired with Hardener HV 8503 for bonding sheet molding compound, metals, and plastics. The 49 lb package fits production cells that need a high-viscosity structural adhesive with heat-accelerated handling strength and a one-to-one mix ratio by volume.
Araldite AV 8503 Benefits
- Paste body helps keep adhesive in place on SMC panels, brackets, and molded parts during assembly.
- One-to-one mix ratio by volume supports metered dispensing and easier operator checks.
- Heat acceleration can reach handling strength in about 1 minute at 250 F when the process allows heated fixtures.
- Published data covers SMC and aluminum lap shear results across room temperature, cold, and high-temperature tests.
- Dry-wipe surface preparation on automotive-grade SMC can reduce prep steps where the application has been tested.
This grade is a fit for composite shops and transportation manufacturers that bond SMC covers, equipment housings, molded panels, and metal reinforcement details. Confirm the matching HV 8503 hardener, meter ratio, and cure cycle before production use.
Common Applications
- Bonding automotive-grade SMC panels and covers.
- Attaching metal brackets, tabs, and inserts to composite parts.
- Industrial equipment housings that need a paste adhesive with heat cure capability.
- Plastic and metal assemblies where a flexible epoxy bond line is desired.
Araldite AV 8503 Technical Details
- Product type: two-component epoxy adhesive paste.
- Mix ratio: one-to-one by volume for AV 8503 and HV 8503.
- Published handling strength: 4 hours at 77 F, or about 1 minute at 250 F.
- Published minimum cure time: 24 hours at 77 F, or 5 minutes at 250 F.
- SMC lap shear at 77 F is listed at 430 psi after a 1 hour cure cycle in Huntsman data.
- Storage guidance calls for sealed original containers kept dry between 36 F and 104 F.
Surfaces should be dry and free from oil, dust, release residue, and loose contamination. Run trial bonds on the exact SMC grade, molded surface, and fixture temperature because composite surface history can change the bond result.
Review current Huntsman literature through Huntsman before approving a cure schedule. For related structural bonding options, browse Chemical Concepts structural adhesives.
Need help confirming cartridge equipment, bulk metering, or a heated fixture plan? Call (800) 220-1966 or email [email protected].







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