ARALDITE® 2012-1: fast-curing structural epoxy
Samaro presents ARALDITE® 2012-1, the shop-floor reformulation of the iconic ARALDITE® 2012: a 2-component, fast-curing, non-sag epoxy designed for metal-to-metal and mixed assemblies (composites, rigid plastics, glass) where speed, productivity, and repeatability are critical.
2012-1: consistent performance, modernized HSE profile
Developed to replace ARALDITE® 2012, the 2012-1 version retains the handling behavior and performance level of the original benchmark while updating the regulatory/HSE profile. Goal: a seamless production transition with no change to your habits (1:1 mix ratio, same uses, same process logic).
What’s changing between ARALDITE® 2012 and 2012-1
- HSE-driven reformulation: updated resin/hardener system in a non-CMR logic (no intentional addition).
- Aligned handling & performance: thixotropic rheology, cure speed, mechanical strengths, and durability very close to 2012.
- Documentation & traceability: new A/B references and SDS for your HSE/quality files.
Key benefits
- Controlled fast cure: short open time for high throughput; quick handling to free up workstations.
- Non-sag: clean beads/fillets without slump, including vertical applications.
- Substrate versatility: ideal for metals (steel, aluminum); effective on composites, rigid plastics, glass (pre-testing recommended).
- Simple process: 1:1 by weight & volume, easy mixing in 2K cartridges or by scale.
- Structural robustness: high shear strength and good peel resistance for durable joints in industrial environments.
| Specification sheet ARALDITE® 2012-1
Type : |
2-component epoxy adhesive, thixotropic non-sag paste |
| Color (mixed): | beige |
| Mix ratio (A:B): | 1:1 by weight and volume |
| Open time (23 °C): | 5–8 minutes — suitable for high-throughput production. |
| Handling strength (23 °C): | ≈ 20 minutes — enables rapid handling. |
| Typical shear strength (23 °C, grit-blasted Al): | ≈ 20 MPa (order of magnitude) |
| Service temperature range (typical): | ≈ –55 °C à +100 °C |
2012-1 in practice: what your operators will see
- Clean beads, no slump in fillets and thicker sections.
- Fast, confident placement: a short working window to align/dispense/clean without losing time.
- Strength build at 23 °C: handling in ≈ tens of minutes; load application after the recommended cure per the TDS.
Application best practices
Surface preparation: degrease (IPA/acetone), apply controlled abrasion (fine grit-blast on metals/composites), remove dust, then degrease again.
Metering & mixing: maintain 1:1. Mix thoroughly (scrape sides and bottom). Purge 2K cartridges before dispensing.
Dispensing: apply continuous beads with steady pressure; avoid entrapped air (adhesive thickness per joint design).
Curing: follow the TDS; room-temperature cure by default, with moderate heat acceleration if specified.
Durability & testing
- Shear vs. temperature: maintains a high strength level across the typical service range.
- Humidity/chemical aging: good resistance in industrial environments (always validate against your real-world conditions).
- Impact / peel: tough profile suited to stressed assemblies.
Industries & use cases
- Industrial bodywork / equipment: metal-to-metal joints, accessories, reinforcements.
- Energy / rail: secondary assemblies subject to vibration and thermal cycling.
- Maintenance / MRO: fast, reliable repairs on metals and rigid substrates.
- Packaging / capital goods: fixings, inserts, metal–plastic interfaces.
❓FAQ – ARALDITE® 2012-1
🔹 Does the mix ratio change compared with 2012?
No. 1:1 by weight & volume (2K cartridges available).
🔹 What are the open time and handling time?
Short open time (a few minutes); handling in ≈ tens of minutes at 23 °C (depends on bead size/joint mass). Refer to the 2012-1 TDS.
🔹 Which substrates?
Primarily metals (steel/aluminum), but also composites, rigid plastics, and glass — perform preliminary tests.
🔹 Can the cure be accelerated?
Yes. As per the TDS, a moderate heat cure can shorten cycle time (validate any impact on properties).
🔹 Is 2012-1 “non-CMR”?
The reformulation targets a modernized HSE profile (no intentional addition of CMR substances). Always consult the current SDS.
