3M™ Greenback Printed Circuit Board Tape 851 Green, 3/4 in x 144 yds x 4.0 mil
Polyester backing reduces stretch and recovery of tape associated with uneven stop-off line
Thick adhesive coating reduces undercutting because adhesive blocks out solutions between fingers
Specially designed adhesive that generally performs better when no ovens are used to heat tape and boards
Polyethylene tape core instead of cardboard
3M™ Circuit Plating Tape 851 with polyester film and blended silicone and rubber adhesive used for PCB masking and other high-temperature applications. Thick adhesive coating. Green, 4.0-mil thick.