Toner Reactive Foil - Green

This Green foil has a special adhesive coating ("sizing") applied underneath the pigment color. When the foil and toner image are subjected to high heat and pressure, the color permanently fuse to just the toner image.

The interesting thing about toner (from a laser printer or photo-copier) is that it is madeup of about 55% pulverized plastic. So, by covering a toner printed image previously transferred to the copper board, and applying heat & pressure to it, the foil encapsulate the toner. In effect, the black toner turns either Green or White. We use these two foils for two different purposes.

GreenTRF is used to seal the toner "circuit image" after it has been transferred to the circuit board.

Toner is a very porous material. If left alone and the board was etched, you'd wind up with pitted surfaces or even hairline breaks from cracks that were too small to see with the naked eye.

GreenTRF solves this problem by completely encapsulating the toner image in one easy step. An absolute "must have" for producing quality boards.

Film for colorizing and sealing black toner used as an "etch resist".
8" wide, 15 feet long.