VANTIYAUS Photosensitive (30cmx500cm/1ftx16.5ft) PCB Photosensitive Dry Film for Circuit Production Photoresist Sheets, Replace Thermal Transfer PCB Board

Commitment:You can get the full refund,If the product you received not include the VANTIYA Box!!!Just contact Amazon team without any other reason.Etching: The dry film is resistant to most of the acid etching solution, the PH value can be resistant to most alkaline etching solution between PH8.0 ~8.5. Cover hole: 1.5 mil dry film can fully cover a 0.25 inches thickness hole. Plating: The dry film is available in most common use of the plating bath, no wrinkles, no color. Package include: 1x photosensitive dry film1x VANTIYA  Paper protector BoxOperating Steps?1-Grinding CCL, this simple, using the finest polished clean water frosted paper on the line2-Removing film, photographic film is sandwiched between two layers of film, the first side can make use of transparent tape tear torn, try a few on the line3-And then foil, copper clad laminates can look a little cleaner, pasted, try not to have bubbles4-Good paste membrane used presses, not too hot, about 100 degrees from the fixing5The printed circuit board film, suggestion is to use film, the fine could reach the highest degree of accuracy if you did not ask for the paper to print it with sulfuric acid trip6The printed circuit on the photographic plate (Note: Dry film is negative, so to highlight the print, which we usually use photographic plate opposite) with ordinary energy-saving lamps 10 or so, if thereNote:Order from VANITYAUS it's 100% original ,but ordered from others could be fake one and without security.