Fortex Microtrak FR4 Positive Photoresist Copper Clad Printed Circuit Board PCB

Fortex Brand: Fortex

Single-sided and double-sided copper-clad fibreglass PCB laminate photo etch boards 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.

  • FR4 fibreglass laminate
  • Thickness 1.5mm
  • Copper thickness 35 micron
  • High resolution positive photo-resist
  • Supplied covered with blue light-proof film
  • Single or double sided
  • Wide range of sizes

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.

Click here for processing instructions.

Description Image Product Buy Pricing (Ex VAT) Number of Sides Length Width Material
Fortex Microtrak Positive Photoresist FR4 Single Sided 160 x 100mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 160 x 100mm - 1 Sheet
Standard range
Order code: 34-1500
MPN: 03-5108-1

Despatched same day - 145 in stockAdditional 50 due on 23/07/2026
1+ £3.04
5+ £2.94
10+ £2.75
Price per unit Ex VAT 		1 160mm 100mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Single Sided 203 x 114mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 203 x 114mm - 1 Sheet
Standard range
Order code: 34-1502
MPN: 03-5110

Despatched same day - 154 in stockAdditional quantity lead time 4 weeks
1+ £5.00
5+ £4.75
10+ £4.51
Price per unit Ex VAT 		1 203mm 114mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Single Sided 220 x 100mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 220 x 100mm - 1 Sheet
Standard range
Order code: 34-1504
MPN: 03-5189

Out of stockBack-order availability date - 15/07/2026
1+ £5.35
5+ £5.08
10+ £4.83
Price per unit Ex VAT 		1 220mm 100mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Single Sided 233.4 x 160mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 233.4 x 160mm - 1 Sheet
Standard range
Order code: 34-1508
MPN: 03-5144-1

Despatched same day - 114 in stockAdditional quantity lead time 4 weeks
1+ £8.11
5+ £7.68
10+ £7.31
Price per unit Ex VAT 		1 233.4mm 160mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Single Sided 233.4 x 220mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 233.4 x 220mm - 1 Sheet
Standard range
Order code: 34-1506
MPN: 03-5127-1

Despatched same day - 96 in stockAdditional 20 due on 23/07/2026
1+ £7.72
5+ £7.35
10+ £6.97
Price per unit Ex VAT 		1 233.4mm 220mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Single Sided 457 x 305mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Single Sided 457 x 305mm - 1 Sheet
Standard range
Order code: 34-1510
MPN: 03-5142

Despatched same day - 62 in stockAdditional quantity lead time 4 weeks
1+ £27.23
5+ £25.87
10+ £24.58
Price per unit Ex VAT 		1 457mm 305mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 160 x 100mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 160 x 100mm - 1 Sheet
Standard range
Order code: 34-1512
MPN: 03-5128-1

Despatched same day - 31 in stockAdditional quantity lead time 4 weeks
1+ £4.79
5+ £4.55
10+ £4.32
Price per unit Ex VAT 		2 160mm 100mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 203 x 114mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 203 x 114mm - 1 Sheet
Standard range
Order code: 34-1514
MPN: 03-5112

Despatched same day - 6 in stockAdditional quantity lead time 4 weeks
1+ £4.00
Price per unit Ex VAT 		2 203mm 114mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 220 x 100mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 220 x 100mm - 1 Sheet
Standard range
Order code: 34-1516
MPN: 03-5109

Despatched same day - 9 in stockAdditional quantity lead time 4 weeks
1+ £6.13
5+ £5.83
10+ £5.54
Price per unit Ex VAT 		2 220mm 100mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 233.4 x 160mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 233.4 x 160mm - 1 Sheet
Standard range
Order code: 34-1520
MPN: 03-5153-1

Despatched same day - 7 in stockAdditional quantity lead time 4 weeks
1+ £9.73
Price per unit Ex VAT 		2 233.4mm 160mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 233.4 x 220mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 233.4 x 220mm - 1 Sheet
Standard range
Order code: 34-1518
MPN: 03-5126-1

Despatched same day - 3 in stockAdditional quantity lead time 4 weeks
1+ £9.36
5+ £8.90
10+ £8.45
Price per unit Ex VAT 		2 233.4mm 220mm Epoxy resin
Fortex Microtrak Positive Photoresist FR4 Double Sided 457 x 305mm - 1 Sheet
Fortex Microtrak Positive Photoresist FR4 Double Sided 457 x 305mm - 1 Sheet
Standard range
Order code: 34-1522
MPN: 03-5151

Despatched same day - 17 in stockAdditional quantity lead time 4 weeks
1+ £31.82
5+ £30.23
10+ £28.72
Price per unit Ex VAT 		2 457mm 305mm Epoxy resin
Thickness1.6mm
Copper thickness35µm
Dissipation factor35
Dielectric constant5.4
Solder bath resistance @ 260°C20s
Resist thickness5µm
Spectral response350 to 450nm
UV light energy requiredApprox. 50mJ/cm
Shelf life1 year @ 15 to 20°C
DeveloperCPD5
EtchantFerric chloride / fine etch crystals


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