Huntsman Araldite HV 953 U Hardener (2011 Part B) – 20 kg Pail

Araldite HV 953 U hardener is Part B of bulk Araldite 2011, a two-component, room temperature curing structural epoxy from Huntsman Advanced Materials. It is supplied in a 20 kg pail and mixed 100:80 by weight with Araldite AW 106 Epoxy Resin (Part A), sold separately. Mixed, the system is Araldite 2011 A/B and bonds metals, ceramics, glass, rubber, and rigid plastics.

A 20 kg pail of hardener pairs with a 25 kg pail of resin at the 100:80 weight ratio, which matches Huntsman’s price list. It suits shops that weigh and mix larger batches instead of dispensing from cartridges.

Key Product Details

Mixed system values are for Araldite 2011 A/B and come from the Huntsman technical data sheet and Araldite 2000 Core Range catalog (May 2023). They are typical values, not a specification. Review the Safety Data Sheet before handling.

Performance in Production

• Weigh-and-mix batching lets you size each mix to the job. Weigh resin into a clean container, add hardener to the 100:80 ratio, and mix only what you can use within the pot life.
• Long working life gives you time to position and fixture multi-part assemblies. Pot life is measured on a 100 g mass at 77°F, so test your own batch size and shop temperature.
• At room temperature the joint needs most of a shift to build strength, and heat shortens that wait considerably. The cure table below lists every temperature.
• Low shrinkage supports tight-tolerance bond lines. A glue line of 0.002 to 0.004 in (0.05 to 0.10 mm) normally gives the highest lap shear strength.
• Surface preparation drives results. Degrease with acetone, isopropanol for plastics, or a proprietary degreaser. Abrade or chemically etch for the strongest joints, then degrease again. Never use low-grade alcohol, gasoline, or paint thinner.
• Huntsman’s data sheet describes application by hand or robotically. Clean tools with hot water and soap before residue cures, because cured residue is hard to remove.

Cure Time by Temperature (Mixed Araldite 2011)

Huntsman technical data sheet, lap shear strength per ISO 4587.

Lap Shear Strength by Substrate (Mixed Araldite 2011)

Huntsman technical data sheet, ISO 4587. Typical values, cured 16 hours at 104°F and tested at 73°F. Metals were sand blasted. Plastics and composites were lightly abraded and alcohol degreased.

Common Applications

• Industrial assembly and repair
• Metal-to-metal bonding on aluminum, steel, stainless steel, copper, and brass
• Composite bonding on GRP and CFRP parts
• Electronic assemblies and electronic components
• Marine applications and wood assembly
• Ceramic, glass, and tile surfaces

Available Sizes

• 20 kg pail, SKU HUN1709308 (Part B hardener only, resin sold separately)

Related Products

• Araldite AW 106 Epoxy Resin, 25 kg Pail, the Part A resin this hardener requires
• Araldite 2011 A/B Epoxy Adhesive, the same adhesive in 50ml and 200ml cartridges and a 2kg kit

How Bulk Araldite 2011 Mixes

1. Degrease the joint surfaces, then abrade or chemically etch them and degrease again.
2. Weigh Part A (AW 106 resin) into a clean mixing container. For example, 100 g of resin takes 80 g of hardener.
3. Add Part B (Hardener HV 953 U) to the 100:80 weight ratio, or an equal volume, and mix thoroughly.
4. Apply to the prepared, dry surfaces by hand or robotically, then assemble and secure the parts right away.
5. Cure using the table above. Clean tools before residue cures.

Frequently Asked Questions

What is Araldite HV 953 U hardener?

Araldite HV 953 U is the Part B hardener for bulk Araldite 2011, a two-component structural epoxy from Huntsman. It is supplied as a 20 kg pail. Araldite HV 953 U, Araldite 2011 hardener, and Araldite 2011 Part B describe the same material, and it needs AW 106 resin to cure.

What resin does Araldite HV 953 U use?

Araldite HV 953 U uses Araldite AW 106 resin. We list it as Araldite AW 106 Epoxy Resin. A 20 kg pail of hardener pairs with a 25 kg pail of resin at the 100:80 weight ratio, which matches Huntsman’s price list.

What is the mix ratio for Araldite HV 953 U and AW 106?

Mix 100 parts AW 106 resin to 80 parts HV 953 U hardener by weight, or 1:1 by volume. For example, 100 g of resin takes 80 g of hardener. Weigh or measure each portion and mix only what you can use within the pot life.

Is Araldite HV 953 U the same as Araldite 2011?

Yes, for bulk supply. Per Huntsman’s price list, bulk Araldite 2011 is supplied as Araldite AW 106 resin (Part A) and Hardener HV 953 U (Part B) in separate pails. The Araldite 2011 A/B cartridges and kit carry the Araldite 2011 name.

How long is the pot life and cure time once HV 953 U is mixed?

Mixed Araldite 2011 has a pot life of about 100 minutes at 77°F on a 100 g mass. At 73°F the joint reaches 145 psi lap shear in about 7 hours and 1,450 psi in about 10 hours. Heat speeds that up and cold slows it down, so use the cure table for your shop temperature.

Does Araldite 2011 hold up in water and heat?

Mixed Araldite 2011 holds up in cool water and loses strength in hot water and after long heat exposure. After 90 days in 73°F water, lap shear measured 3,597 psi, but after 90 days in 194°F water it fell to 290 psi. Test your joint first if it lives in hot water or near the temperature limit.

How do I store Araldite HV 953 U hardener?

Huntsman lists a 6 year shelf life from date of manufacture for Araldite 2011 stored dry in original sealed containers at 36 to 104°F, out of direct sunlight. If stored below 60°F, bring the material to 60 to 77°F before use. Review the Safety Data Sheet before handling, and call us if you need one.

Questions on fit for your bulk bonding application? Call (800) 220-1966 or email [email protected].