ColorMount is a porous tissue coated on both sides with a low temperature adhesive that bonds while hot. Permanent bonding occurs at 185?F. Specially formulated for permanent low-temperature dry-mounting RC photographs. It?s also an excellent general-purpose adhesive for most other mounting applications including slick poster materials blueprints lithographs and other smooth artwork. Works well with almost all mounting substrates - cardboard foam boards Masonite aluminum and Plexiglas.