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ID: 13625
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1pcs 100g Photoresist Anti-etching Blue Ink Paint for DIY PCB Dry Film Replacement
5.0 (13 votes) | 47 orders
Price:
US $
14.86
/ piece
100g Photoresist Anti-etching Blue Ink Paint for DIY PCB Dry Film Replacement
Description:
Viscosity: 70ps±10ps (25℃)
Non-volatile matter: 70%
Function: metal anti-etching, anti-plating
Exposure: After developing, the number of exposure rulers is 7-9 (using 21-level exposure ruler)
Drying: 30-35 ℃ room temperature, placed for more than 1 hour to completely dry. No need to bake.
Development: developer (Na2CO3 or K2CO3) temperature 30±2℃, concentration 1±0.2%, spray pressure 2±0.5kg/cm2
Etching: Etching potion PH≤9.5, spray pressure 2.5 kg/cm2, temperature 60±5℃. The etching depth (thickness) is within 0.2mm and no post-baking is required after development. For products with etching depth (thickness) exceeding 0.2mm, please bake at 150°C x 20 minutes at high temperature after development to enhance the adhesion of the ink and obtain better etching. Effect.
Removal of film:
Automatic film removal: NaOH concentration 5-8%, liquid temperature 55±5℃, spray pressure 2±0.5kg/cm2.
Manual film removal: NaOH concentration 5-8%, soak in liquid temperature 55±5℃, rinse with tap water
Silkscreen: The thickness of silkscreen on the substrate is 20um-25um, and the thickness after post-baking is 10um-15um.
Pre-baking: It is to initially evaporate the solvent in the ink, so that the negative film will not stick to the subsequent exposure. That is, the pre-baking temperature is 75°C-80°C, and the time is 15-20 minutes.
Precautions:
The developer temperature is generally controlled between 28-32 °C;
The developer concentration is generally controlled between 0.8%-1.2%;
The developing pressure is generally controlled at 1.0-3kg\C㎡
The development time is generally controlled to 20-30 seconds.
Post-baking process:
(In order to obtain a cured epoxy resin product with excellent performance, it is very important to perform post-curing at high temperature. Post-baking makes all functional groups participate in the reaction, thereby increasing the cross-linking density. The properties of the resin cured product are very favorable). Post-baking makes the resin in the ink polymer
The process of DIY PCB:
1. Printing transparency film by Inkjet or Laser printer.
2. Perparing the materials photoresist blue paint & diluent, the diluent can be replaced by banana oil (blue paint : diluent = 1 : 3).
3. Mix the photosensitive blue paint by diluent.
4. Paint the copper clad laminate by diluted photoresist blue paint and spread it in one derection evenly.
5. Blow-drying the plate.
6. Preparing the materials of exposure.(polymethyl methacrylate glass & UV exposure lamp 8W)
7. Clamp the printed transparency film by the polymethyl methacrylate glass.
8. Fasten the printed transparency film.
9. Begin to exposure about 90-150 seconds.
10. The distance between the lamp and the glass is about 10cm.
11. Preparing to develop. (20g photoresist dry film developer mixes with 800ml 30'C water)
12. Put the plate into the develop solution and brush it gently.
13. After 5 seconds, it looks like the below photo.
14. After 15 seconds, it looks like the below photo.
15. The photo of finished developing.
16. Magnify the photo.
17. Preparing the materials of etching. (200g etching powder mixes with 800ml 100'C water)
18. Begin to etching. Put the plate into the etching solution. The temperature of the solution had better in 50'C above.
19. Preparing the materials of remove. (50g photoresist resist remover powder mixes with 1000ml water)
20. Begin to remove.
21. Finished the remove.
Package Include
100g Negative Photoresist Anti-etching Photosensitive Blue Paint for DIY PCB
- is_customized: Yes
- Model Number: Ink Paint
- Brand Name: QSUNRUN
- Origin: Mainland China
- Certification: NONE
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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
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| Location | *Estimated Shipping Time |
|---|---|
| United States | 10-30 Business days |
| Canada, Europe | 10-30 Business days |
| Australia, New Zealand | 10-30 Business days |
| Central & South America | 15-30 Business days |
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