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® 420 A/B
Manufacturer: Huntsman Advanced Materials
Technologies: Two-component epoxy adhesive paste, room temperature curing with option for elevated temperature post-cure
Color: Component A – Yellow; Component B – Blue; Mixed – Dark Green
Cure Type: Room temperature cure; performance enhanced with elevated temperature post-curing
Package Size: Contact to Techniq VN for details.
Shelf Life: Indicated on product label
Araldite® 420 A/B is a two-component epoxy adhesive paste that cures at room temperature with the option of post-curing at elevated temperature to enhance performance. It is characterised by very high lap shear and peel strength, excellent toughness and resilience, and good moisture resistance. Designed for high-strength structural bonding, it is suitable for a wide range of materials including metals, composites, ceramics, and thermoplastics.
Bonding metals, composites, ceramics, and thermoplastics in industrial and structural applications.
Suitable for aerospace, automotive, and engineering industries requiring strong, durable adhesive joints.
Particularly effective where high shear and peel strength are required under varied environmental conditions.
| Property | Araldite® 420 A | Araldite® 420 B | Mixed Adhesive |
|---|---|---|---|
| Colour (visual) | Yellow | Blue | Dark Green |
| Specific Gravity | 1.2 | 1.0 | ~1.1 |
| Viscosity at 25°C (Pa·s) | 100–300 | 0.6–1.4 | 35–45 |
| Mix Ratio (by weight) | 100 | 40 | — |
| Mix Ratio (by volume) | 100 | 50 | — |
| Pot Life (100 g at 25°C) | — | — | ~60 minutes |
| Lap Shear Strength at 23°C | — | — | > 30 MPa |
Cured Properties (typical):
Lap shear strength (metal-to-metal, plastics): 20–40 N/mm² depending on substrates.
Glass transition temperature: 56°C (DMA).
Tensile strength: 30 MPa.
E-modulus: 2 GPa.
Elongation at break: 4.6%.
Shore hardness: 75 D.
Shear modulus: decreases from 1.0 GPa at –20°C to 5.5 MPa at 90°C.
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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