Multilink Primer A is an aqueous solution of initiators. Multilink Primer B contains HEMA, phosphonic acid and methacrylate monomers. Multilink Automix is exclusively applied together with the self-etching and self-curing Multilink Primer. Multilink Primer is used to condition the dental hard tissue and any existing composite build-up fillings. Use: The two primer liquids Multilink Primer A and B are mixed in a 1:1 ratio. Apply, scrub it into to the surface for another 30s. Disperse excess with blown air until the mobile liquid film is no longer visible.