HARDENER HV 8503
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Main features
- One-Minute Fixturing Time
- Heat-Resistant Curing Service
- 1:1 Controlled Mixing
Product Description
Araldite® AV 8503 Resin / Hardener HV 8503 is a two-component epoxy adhesive paste designed primarily for bonding sheet molding compound (SMC), plastics, and metals. It features a 1:1 by volume mix ratio and simplifies production by requiring only a dry wipe for surface preparation before bonding.
Key features
- Fast fixture time: Achieves handling strength in just one minute on a heated fixture at 240°F (116°C).
- Minimal surface preparation: Eliminates complex pre-treatment steps by requiring only a simple dry wipe prior to application.
- Reliable performance: Offers good flexibility, high sag resistance, and excellent heat resistance up to a 217°F (103°C) glass transition temperature.
Applications / Suitable for
- Designed for bonding sheet molding compound (SMC).
- Suitable for bonding various plastics and metals.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Mechanical Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Pre-cure processing characteristics and physical properties of Araldite® AV 8503 / HV 8503.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix Ratio (Volume) | 1:1 | - | Resin to Hardener |
| Mix Ratio (Weight) | 100:92 | - | Resin to Hardener |
| Viscosity (Resin) | 172,000 | cP | Brookfield @ 10 rpm, 77°F |
| Viscosity (Hardener) | 368,000 | cP | Brookfield @ 10 rpm, 77°F |
| Pot Life | 30 | minutes | at 77°F, 100g mass |
| Sag Resistance | 0.08 (2) | inch (mm) | at 77°F (0.23 in/6mm bead) |
After-processing / final-state properties
Cured mechanical properties of Araldite® AV 8503 / HV 8503 after full cure.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 78 | Shore D | - |
| Ultimate Tensile Strength | 3400 (23.4) | psi (MPa) | ASTM D-638 |
| Elongation | 15 | % | ASTM D-638 |
| Lap Shear Strength (Aluminum) | 3380 (23) | psi (MPa) | Cure: 1 hour at 250°F, tested at 77°F |
| Glass Transition Temperature | 217 (103) | °F (°C) | - |
| Young's Modulus | 142,000 (979) | psi (MPa) | ASTM D-638 |





















