3M Thermally Conductive Acrylic Interface Pad 5571 is a thermal interface material designed to provide a heat transfer path from heat-generating components to a cooling device (e.g., aluminum plate or heat sink) to improve device reliability and component lifespan. This product can be used for different applications including EV battery thermal management and more.A single-layer product, 3M thermally conductive acrylic interface pad 5571 is a slightly tacky acrylic elastomer sheet with a conductive ceramic filler. It is moderately conformable to uneven substrates, helping fill gaps for improved thermal performance. It is a medium-soft pad with high thermal conductivity of 2.1 W/m-K (3M test method).