It has a moderately high glass transition temperature (Tg) of 150-155°C and a service temperature range from -101°C to +288°C. Designed to compensate for thermal mismatches, this compound resists impact, vibration, shock and thermal cycling.
EP17TF is described as a reliable electrical insulator, possessing a volume resistivity greater than 1015 ohm-cm and a dielectric constant of 4.5 at 60 Hz at room temperature. It maintains its electrical insulation properties even at higher temperatures. The system has good toughness with an elongation of 5-10%.
In addition, the compound EP17TF is said to exhibit superior strength properties, bonding well to similar and dissimilar substrates such as metal, ceramics, plastics and composites. It offers a high lap shear strength of 3,200-3,400 psi, a tensile strength of 8,000-9,000 psi and a tensile modulus of 350,000-400,000 psi at 24°C.
EP17TF requires an elevated temperature cure of 150°C for 5-6 hours, followed by a post cure at 177°C for 4-5 hours. The additional post cure is recommended to achieve optimal strength, chemical resistance and thermal properties. EP17TF withstands many chemicals, including acids, bases, fuels, oils and many solvents. It is available in standard packaging from ½ pint containers up to 5 gallon pails. Containers should be refrigerated to extend shelf life.
