3M Circuit Plating Tape 851

Description

3M™Circuit Plating Tape 851 is a green polyester film tape with a unique conformable adhesive for printed circuit board masking during electroplating.

Features:

•  Polyester backing reduces the stretch and recovery of tape associated with the uneven stop-off lines.
•  The thick adhesive coating reduces undercutting because adhesive blocks out solutions between fingers.
•  The specially designed adhesive generally performs better when no ovens are used to heat tape and boards.

Application:

•  The low-stretch polyester film can be applied by machine or by hand.
•  The tape must be firmly pressed down by equipment with rubber-covered rollers or a rubber-covered platen press.
• Hand rolling usually does not provide enough pressure. A vivid outline of the circuit leads usually indicates adequate pressure was used.
•  Solvent* clean-up of the board is recommended to facilitate subsequent soldering.