570K Epoxy Film

LOCTITE ABLESTIK 570K adhesive film is a high purity epoxy
designed for hybrid substrate attach. This adhesive exhibits
significantly better adhesion to gold surfaces, resulting in
improved performance during constant acceleration testing
compared with similar high purity materials. 570K can also be provided in custom cut preforms.   570K comes in 8" x 12" sheets and thicknesses of .004", .005", & .006".    It ships on cold packs and should be stored at -40c.  Bonding Source also offers custom cutting of preforms with this material.

Tech Data Sheet 

Ablestik Loctite 561K