Enhances bonding/adhesion of RTV and heat cure silicones to many metals, ceramics and
some plastics.
Application Methods
- Apply in a very light, even coat by wiping, dipping or spraying.
- Excess material should be wiped off to avoid overapplication.
- Diluting by a factor of 2 to 4 with additional solvent may avoid excessive build-up.
Dow primers, prime coats and adhesion promoters are dilute solutions of silane coupling
agents and other active ingredients. The surface reactive components typically must be
applied in a very thin layer for best bonding. The solvents used in these products serve to
deliver the active ingredients in a thin, uniform coating, enhance surface cleaning, and in
some cases, aid in the penetration of the active ingredients into the bonding surface.
Primers can be used to increase design flexibility, reduce total costs or increase
performance reliability of PCB systems assemblies. They do this by enabling adhesion to
lower-cost substrates or lower temperature processes which reduce energy budgets, among
other possibilities.
