Found this interesting article regarding Bergquist Edited by the Electronicstalk editorial team Feb 23, 2009
The reflow-resistant thermal interface tape saves product manufacturers from manually applying thermal interface material after assembly.
This streamlines production, allowing to quickly bond the metal-core PCB to a heatsink avoiding laborious attachment of individual screws or clips.
Release of the back-side liner is also unaffected by soldering temperatures. It is available only as a pre-applied thermal interface for T-Clad circuits. It is 0.127mm thick and is rated for continuous use from – 30 to +120C.
High bond strength to low-energy surfaces such as aluminium heatsinks and a variety of plastics assures secure assembly, even for products used in harsh environments. The Bond-Ply 450 is available in both standards as well as customised T-Clad circuits.
These include outlines such as power rails and star- or square-shaped LED boards, as well as a limitless variety of sizes for use in markets such as architectural, automotive, medical, military, signage or aerospace.