Figure 4® HI TEMP 300-AMB is an ultra-high temperature plastic for use in applications requiring high heat resistance. With heat deflection temperature of over 300 °C at both low and high stress (HDT at 0.455 and 1.82 MPa), this material is well suited for the testing of high temperature components in applications including HVAC, consumer appliances, motor enclosures, stators, molds and the like. It does not require a secondary thermal post-cure.