masking during electroplating. 3M[3M?:3M] Tape 851L is a linered version of 3M™Circuit Plating Tape 851.
Product Construction of 3M™Circuit Plating Tape:
Backing Adhesive Liner Color Standard Roll Length
Transparent Blended silicone Polyester liner Translucent green 144 yds. (132 m)
Polyester and rubber
Typical Physical Properties of 3M™Circuit Plating Tape:
Note: The following technical information and data should be considered representative or typical only and should not be
used for specification purposes.
ASTM Test Method of :
Adhesion to Stainless Steel: 29 oz./in. width (27 N/100 mm) D-3330
Tensile Strength at Break: 26.8 lbs./in. width (368 N/100 mm) D-3759
Elongation at Break: 124% D-3759
Backing Thickness: 0.9 mil (0.02 mm) D-3652
Total Tape Thickness: 3.6 mils (0.10 mm) D-3652
Features of 3M™Circuit Plating Tape:
• 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.
