Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Item Name: Araldite® 1570 FST A/B
Manufacturer: Huntsman Advanced Materials
Technologies: Two-component, halogen-free, flame-retardant epoxy adhesive
Color: Component A – Black; Component B – White; Mixed – Dark Grey
Cure Type: Room temperature cure (48 hrs at 23°C); accelerated cure options available
Package Size: Contact to Techniq VN for details.
Shelf Life: 1 year
Araldite® 1570 FST A/B is a halogen-free, two-component epoxy adhesive with flame-retardant properties, designed primarily for aerospace applications. It cures at room temperature and is particularly suited for PE foam to phenolic GRP bonding in cargo areas.
It is qualified to AIMS 10-04-006 and complies with FST (Flame, Smoke, Toxicity) standards: FAR 25.853 (a), FAR 25.853 (a-1), and AITM 3.0005.
Aerospace structures requiring flame retardancy.
Specifically for cargo areas: PE foam to phenolic GRP bonding.
Suitable for bonding metals and plastics under FST compliance.
| Property | Araldite® 1570 FST A | Araldite® 1570 FST B | Mixed Adhesive |
|---|---|---|---|
| Colour | Black | White | Dark grey |
| Appearance | Thixotropic paste | Thixotropic paste | Thixotropic paste |
| Specific Gravity | 1.3 – 1.5 | 1.1 – 1.3 | 1.2 – 1.4 |
| Viscosity at 25°C (mPa·s) | 50 – 250 | 100 – 400 | – |
| Pot life (100 g at 25°C) | – | – | ~140 min |
| Shelf life (2–8°C) | 1 year | 1 year | – |
| Mix Ratio (by weight) | 100 | 87.8 | – |
| Mix Ratio (by volume) | 100 | 100 | – |
| Property | Condition | Value |
|---|---|---|
| Lap Shear Strength on Al (ISO 4587) | -55°C | 18 – 23 MPa (cohesive) |
| +23°C | 14 – 20 MPa (cohesive) | |
| +80°C | 3 – 6 MPa (cohesive) | |
| Glass Transition Temperature | – | ~60°C |
| Lap Shear (Plastics, CFRP, PPS, PC, etc.) | – | 5 – 20 MPa depending on substrate |
| Flammability (Bunsen Burner Test) | Burn length | 42 mm (≤152 mm) |
| Flame time | 0 s (≤15 s) | |
| Drip flame | 0 s (≤3 s) | |
| Smoke Density (AITM 2.0007) | After 4 min | Ds = 46 (≤200) |
| Toxicity (AITM 3.0005) | HCN | 5 ppm (≤150) |
| CO | 90 ppm (≤1000) | |
| NOx | 7 ppm (≤100) | |
| SO₂ + H₂S | 2 ppm (≤100) | |
| HF | 0 ppm (≤100) | |
| HCl | 0 ppm (≤150) |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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