The special 3M 94 Primer is used before applying double-sided adhesive tapes on low surface energy (LSE) materials, where it enhances the adhesion of the tapes. It can also be used before applying double-sided adhesive tapes on glass if the bonded joint will be exposed to extreme humidity. Technical specifications system: solvent-based base: acrylic polymer temperature resistance: 90 °C UV resistance: excellent moisture resistance: excellent chemical resistance: excellent application: painting