User Guide

Surface Concern Suggested Primer Alternatives
Steel or Aluminum Surface must be clean None suggested Abrasion may clean surface, 3M™ Adhesion
Promoter 111 for increased adhesion.
Copper, Brass, Bronze Oxidation after bonding Lacquer or varnish
(b)
Architectural grade coatings
Concrete, Brick Non-unified or rough surface, 3M™ Rubber and Vinyl Spray 80 Concrete sealer, paint
moisture
Glass, Stone, Ceramic Tile High humidity, moisture Silane coupling agent in IPA/water cleaner
(b)
3M™ Primer 94
Wood (soft, hard Weak fiber layer on surface 3M™ Rubber and Vinyl Spray 80, Urethane paint, varnish
particle board, etc.) (e.g., low surface strength) 3M™ Fastbond™ 30 Contact Adhesive
Plastics: Polyolefin Low adhesion 3M™ Primer 94 (additional surface Flame treatment, Corona treatment
preparation may be required)
Non-olefin Additives, low adhesion 3M™ Primer 94, 3M™ Scotch-Grip™ Abrade or
Plastic Adhesive 2262
(a)
3M™ VHB™ Tapes 4932/4952/5925/5952/5962
Polyurethane Mold release, low adhesion 3M™ Adhesion Promoter N-200J, Abrade and prime
(Molded or Rubber) 3M™ Scotch-Grip™ Plastic Adhesive 1099
Rubber: Neoprene, Santoprene Migrating oils 3M™ Primer 94, 3M™ Scotch-Grip™ 3M™ Weather Strip Tapes
Plastic Adhesive 1099
EPDM Low adhesion 3M™ Primer 94 3M™ Weather Strip Tapes
Paints Low adhesion 3M™ Adhesion Promoter 111 Abrade or
3M™ VHB™ Tapes 4932/4952/5925/5952/5962, or
3M™ Primer 94, 3M™ Scotch-Grip™ Plastic
Adhesive 2262
(a)
, 3M™ Adhesion Promoter N-200J
Coil Coated Aluminum Low adhesion 3M™ Adhesion Promoter 111 Abrade or
3M™ VHB™ Tapes 4932/4952/5925/5952/5962, or
3M™ Primer 94, 3M™ Scotch-Grip™ Plastic
Adhesive 2262
(a)
, 3M™ Adhesion Promoter N-200J
Flexible PVC (Vinyl) Plasticizer migration 3M™ Scotch-Grip Plastic Adhesive 2262
(a)
, 3M™ VHB™ Tapes 4945 and 4941
3M™ Rubber and Vinyl Spray 80 (test for migration)
Technical Bulletin
Surface Preparation for 3M
™
VHB
™
Tape Applications
Suggested Primers
The table below offers suggested primers and alternative methods that commonly require primers,
adhesion promoters or other surface treatments for successful use with 3M™ VHB™ Tapes. This
list is not intended to be fully comprehensive but may be useful for many applications. It is very
important for the user to determine the suitability of the VHB tape, primer and application
process and compliance with local Air Quality Regulations.
Primer Source
and Description
• 3M™ Primer 94 and 3M™ Adhesion Promoter 111 is available through distributors that
carry 3M™ VHB™ tapes.
• 3M™ Scotch-Grip™ Plastic Adhesive 2262 must be thinned in acetone or MEK* in a 1:5 or
1:10 ratio (e.g., 1 part Scotch-Grip plastic adhesive 2262 to 5 parts acetone or MEK). The
product is available premixed in either acetone or MEK from: PRC DeSoto at [phone].
3M™ Scotch-Grip™ Plastic Adhesive 2262T, thinned in 10:1 MEK solution or 3M™ Scotch-
Grip™ Plastic Adhesive 2262TA, thinned in 10:1 acetone solution.* When diluted in acetone
at this ratio, this material contains 196 g/l VOC.*
• Diluted 3M™ Scotch-Grip™ Plastic Adhesive 1099 must be thinned in acetone* in a
1:3 ratio (e.g., 1 part Scotch-Grip plastic adhesive 1099 to 3 parts acetone). This thinned
material contains zero VOC’s when diluted in these ratios.
• 3M™ Adhesion Promoter N-200J is available from PRC DeSoto at [phone].
• Silane Coupling Agent is available premixed in a 70:30 IPA/water solution or as a
concentrate. A 0.5 wt. % level of silane* adhesion promoter diluted in a 70:30 IPA/water
cleaning solution has been found to be sufficient.
Suggested Sources for Silane Coupling Agents:
Custom-Pak Products, Inc. [phone] available premixed
Lancaster Synthesis, Inc. [phone] available 100% concentrated
*Note: Be sure to read and follow silane and solvent manufacturer’s precautions and directions
for use for proper handling and storage information.
Note: These primers contain greater than 250 g/l of volatile organic compounds (VOC). Please contact your local Air Quality Regulations
to be sure these primers are compliant.
(a)
3M™ Scotch-Grip™ Plastic Adhesive 2262 contains 196 g/l VOC.
(b)
See supplier information.
(3)