3M™ Greenback Printed Circuit Board Tape 851


3M 851

1 mil polyester film tape with heavy coat weight of silicone/rubber blended adhesive for excellent conformability in masking applications for Printed Circuit Board plating processes. 3.6 mil total thickness. Translucent Green in color.

Green, 4.0 mil (0.10 mm) polyester film tape with silicone/rubber adhesive blend. A polyester film tape with a unique conformable adhesive for printed circuit board masking during electroplating. Used for masking printed circuit boards during solder striping and precious metal plating of fingers.


  • Polyester backing reduces stretch and recovery of tape associated with uneven stop-off line
  • Specially designed adhesive that generally performs better when no ovens are used to heat tape and boards
  • Thick adhesive coating reduces undercutting because adhesive blocks out solutions between fingers

Data Sheets & Summary Sheets