Master Bond (Hackensack, NJ) EP4S-80 is a one component silver filled epoxy which meets NASA low outgassing requirements. It has an unlimited working life at room temperature and a moderate heat cure requirement of 80°C. With a viscosity of 10,000-15,000 cps, EP4S-80 has a smooth flow and is easily brushable, making it ideal for EMI/RFI shielding and static dissipation. This formulation can also be used in a variety of applications where electrical conductivity is required: bonding, sealing, coating, as well as gap filling and encapsulating. Additional features include the following:
- EP4S-80 features excellent mechanical properties with a tensile modulus of 500,000-600,000 psi and a compressive strength of 22,000-24,000 psi at 25°C.
- This electrically conductive system offers a volume resistivity of 0.02-0.06 ohm-cm and a thermal conductivity of 1.30-1.44 W/(m•K).
- Upon curing, EP4S-80 offers low shrinkage, excellent dimensional stability and a glass transition temperature of 130-135°C.
- Serviceable over the temperature range of -60°C to +150°C [-75°F to +300°F], this compound adheres well to a variety of substrates such as metals, composites, glass, ceramics, semiconductor materials and many plastics.
- It is packaged in ounce and pound jars.
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