3.3 x 1ft Photosensitive Dry Film for PCB Board High-Resolution Circuit Photoresist Sheet for Electroplating, Etching and Hole Covering

This portable photosensitive dry film is designed for PCB board production applications. It attaches to the PCB surface to create a photosensitive layer, supporting electroplating, hole covering, and etching processesThe film demonstrates effective hole coverage and high resolution performance while maintaining compatibility with various substrate materials commonly used in PCB fabricationSpecification:Item Type: Photosensitive Dry FilmApplicable products: PCB boardInsulation material: Organic resinWeight: Approx. 50gSize: Approx. 1m x 30cm / 3.3 x 1.0ftPackage List:1 x Photosensitive Dry FilmOperating Steps:1. Uncover the film, the photosensitive film is sandwiched between the two layers of film, first tear off one side, a little difficult to tear, try a few more2. Then film, the copper plate can be slightly cleaned, flattened, try not to have bubbles3. After the paste, the iron is slightly heated, not too hot, to fix4. Print circuit board film, it is recommended to use film, you can achieve the highest fineness, if you do not require precision with tracing paper to print5. Exposure, put the printed pattern on the photosensitive plate, use ordinary energy-saving lamps for about 30 minutes, if there is an exposure machine for 1 minute, the sun has not been tried, it should be about 15 minutes, the exposure process is obvious, because the photosensitive The film changes color when exposed, and changes from light to dark blue. You will easily see your circuit diagram appear on the board6. Develop, peel off another protective film, put it into the developer (developer is 1:100 water, 10 grams of water, 1 liter of water), and use a cotton swab to wipe the board with a little force during development.7. Etching 8. After etching, take off the film, take off the film by 1:60 or 70, and soak the board for a few minutes

• ‌Essential for PCB Manufacturing:‌ Apply directly to PCB surfaces to create photosensitive layers, enabling precise circuit patterning
• ‌Superior Hole Covering & Resolution:‌ Ensures clean electroplating and etching results with minimal defects, even for intricate designs
• ‌Broad Material Compatibility:‌ Works seamlessly with common PCB substrates (FR4, copper-clad laminates) and standard plating baths
• ‌Stable Performance:‌ Resists wrinkling/discoloration during processing, maintaining integrity in harsh environments
• ‌Compact & Portable:‌ 1m x 30cm size is ideal for small-scale prototyping or repairs. Includes 1 roll dry film