3M Primer 94 can be used in a wide variety of applications. It was developed to be used in conjunction with 3M VHB tapes to increase the bonding strength of the tape. It has become a popular tool to assist in applying automotive vinyl wraps. Will increase the bond between vinyl wraps and nearly anything where a strong, durable bond is required. 3M Tape Primer 94 can be used to promote adhesion of 3M tapes to surfaces such polyethylene, polypropylene, ABS, PET/PBT blends, concrete, wood, glass, metal and painted metal surfaces.
The bonding surface must be relatively clean and dry. Contaminated surfaces should be cleaned with a 50/50 Isopropyl Alcohol and water mixture. A clean lint-free cloth should be used.
Shake 3M primer 94 well before using. Apply a thin uniform coating to the bonding surface using the minimum amount that will fully coat the surface. Allow 3M primer 94 to dry thoroughly before applying tape. This is usually accomplished in 5 minutes at room temperature. Be sure the primed surface remains free from contaminants prior to applying the tape. Porous surfaces may require 2 applications of 3M primer 94 for uniform coverage and good adhesion. Allow first application of primer to dry before applying the second coat. 3M primer 94 may be applied with brush or swab. It can also be applied with a pressurized flow gun, knurled roller or other similar type of application equipment.
3M primer 94 can be removed with isopropyl alcohol. Vigorous scrubbing may be required.