Fortex Microtrak Positive Photoresist FR4 Single Sided 203 x 114mm - 1 Sheet

203 x 114mm single-sided copper-clad fibreglass PCB laminate photo-etch board coated with a high resolution photo-resist.

Microtrak laminates consist of FR4 epoxy-glass laminate sheets, dip-coated with a positive working photo-resist. The photo-resist contains a dye that provides a good contrast against the copper and allows boards to be easily inspected at the developing stage. Boards are protected by a specially designed light-proof blue film which allows them to be guillotined without the risk of fracturing the photo-resist.

* 203 x 114mm single-sided FR4 fibreglass laminate * Thickness 1.5mm * Copper thickness 35 micron * High resolution positive photo-resist * Supplied covered with blue light-proof film

Microtrack FR4 boards require a developer strength of 10 to 1. (Not 20 to 1 as with other products it replaces.) Exposure time is typically 2.5 to 3.5 minutes.

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