Photosensitive (1ft*16.5ft/30cm x 500cm) PCB Photosensitive Dry Film for Circuit Production Photoresist Sheets, Thermal Transfer PCB Board

• Photographic film, also known as dry film, is used to make PCB board, stick it on top of the PCB, it will become a sensitive circuit board.
• Suitable for plating, hole covering,and the etching process.
• Excellent adhesion to almost all surfaces
• Image clarity after exposure
• Excellent ability to cover holes,Front-panel is very clean after developed

Etching: The dryfilm is resistant to most of the acid etching solution, the PH value can beresistant to most alkaline etching solution between PH8.0 ~8.5. Coverhole: 1.5 mildry film can fully cover a 0.25 inches thickness hole. Plating: The dryfilm is available in most common use of the plating bath, no wrinkles, nocolor. Features: Size:1ftx16.5ft/30cmx500cm Material:Resin colour:Blue Packageinclude: 1x photosensitivedry film 1xJTMM Paper protector Box OperatingSteps： 1-GrindingCCL, this simple, using the finest polished clean water frosted paper on theline 2-Removingfilm, photographic film is sandwiched between two layers of film, the firstside can make use of transparent tape tear torn, try a few on the line 3-Andthen foil, copper clad laminates can look a little cleaner, pasted, try not tohave bubbles 4-Goodpaste membrane used presses, not too hot, about 100 degrees from the fixing 5Theprinted circuit board film, suggestion is to use film, the fine could reach thehighest degree of accuracy if you did not ask for the paper to print it withsulfuric acid trip 6Theprinted circuit on the photographic plate (Note: Dry film is negative, so tohighlight the print, which we usually use photographic plate opposite) withordinary energy-saving lamps 10 or so, if there Etching:Thedry film is resistant to most of the acid etching solution, the PH value can beresistant to most alkaline etching solution between PH8.0 ~8.5. Note:Light shooting and different displays may cause the color of the item in thepicture a little different from the real thing. The measurement allowed erroris +/- 1-3cm.