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Duralco 4703 is an adhesive and tooling compound which is a composite of Cotronics unique high temperature resins with metallic and ceramic particles. Duralco 4703 is ideal for use as a high temperature adhesive for bonding, potting, injection molding, matched dies, vacuum forming dies, extrusion dies and tooling.
Duralco 4703 has ultimate stability and strength in high temperature environments and has excellent resistance to most chemicals, solvents, acids and bases.
Duralco 4703 can be machined to close tolerences. Applications include repairing and rebuilding worn or cracked composites, dies, fixtures, jigs etc. Users have reported bond strengths of over 3000 psi at room temperature and 1200 psi at 260°C. Also the 4703 retains 85% of its tensile strength after 1000 hours of service at 260°C and seals high performance thermocouples for use in high temperature environments.
| Maximum Temp. | 260°C / 500°F |
| Viscosity cps | 50,000 |
| Hardness shore D | 95 |
| Tensile Strength | 11,800 |
| Thermal Conductivity BTU-in/ Hr. Ft2°F | 18 |
| Thermal Expansion 10-5/°C | 3.9 |
| Dielectric Strength volts/mil | 550 |
| Volume resistivity ohm-cm | 1010 |
| Heat Distortion °C | 320 |
| Thermal Stability % 1000 Hr @ 200°C | 0.02 |
| Moisture Absorbtion % 30 Days | 0.15 |
| Cure Hr @ 121°C / 250°F | 4-6 |
| Components - Colour | 2 - Black |
| Product # | Description | Temp Max °C |
| 4703-1 | Duralco High Temp castable tooling resin 1 Pint | 343 |
| 4703-2 | Duralco High Temp castable tooling resin 1 Gallon | 343 |
| 4703-3 | Duralco High Temp castable tooling resin 5 Gallons | 343 |
Applications Include bonding, potting, injection molding, matched dies, vacuum forming dies, extrusion dies and tooling.
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