Huntsman Araldite HV 8503 US PL U1 Epoxy Hardener, 45 lb

Description

HV 8503 hardener is the hardener side of the Huntsman Araldite AV 8503 and HV 8503 two-component epoxy adhesive system for bonding sheet molding compound, plastics, and metals. This 45 lb pail supports production programs that need bulk packaging for SMC assemblies, transportation parts, and heated fixture work.

HV 8503 hardener Benefits

• One-to-one volume mix ratio helps production teams set up metering and hand-mix processes with fewer ratio changes.
• Paste consistency supports controlled placement on molded parts, flanges, and shaped bond lines.
• Fast heat-assisted fixture option helps SMC assemblies move through heated tools quickly.
• Compatibility with SMC, plastics, and metals gives buyers one qualified adhesive family for mixed-part programs.
• Bulk pail format fits maintenance stockrooms and repeat production use better than small cartridges.

Use this hardener only with the matching AV 8503 resin and approved process documents. Final bond performance depends on correct ratio control, dry surfaces, mixing quality, and cure schedule.

Where HV 8503 hardener Fits

• Sheet molding compound bonding in automotive and transportation assemblies.
• Plastic-to-metal joints that have been tested with the AV 8503 system.
• Heated fixture bonding where fast handling strength is part of the process plan.
• Bulk adhesive stations that need pail supply for larger production runs.
• Repair or prototype work that mirrors an existing Araldite AV 8503 specification.

Surface Preparation And Use

Clean parts before bonding and remove loose dust, oil, release agent, and handling residue. Huntsman product data notes dry-wipe surface preparation for SMC in its listed testing, but production users should still confirm preparation on their exact substrate and finish.

Condition cold material before use, mix resin and hardener thoroughly, and hold bonded parts in position until handling strength is reached. Do not change cure temperature, bond line thickness, or surface prep without testing a sample joint first.

Technical Details And Documentation

Huntsman lists the AV 8503 and HV 8503 system as a two-component epoxy paste with a 1:1 volume mix ratio, 24 hour minimum cure at 77 F, and 5 minute minimum cure at 250 F. Review current Huntsman documentation from Huntsman before production approval.

Ordering Help

For related epoxy adhesives and dispensing supplies, browse Chemical Concepts epoxy adhesives. For help matching resin, hardener, pack size, and cure schedule, call (800) 220-1966 or email [email protected].