INSMA PCB Dry Film 38um Photosensitive Film for Photosensitive PCB Circuit Production Photoresist Sheets 30cmx5m;

Photographic dry film is used to make PCB board, stick it on PCB to make a sensitive circuit board.
Feature:
Masking capacity: 0.25inch
Thickness: 38±2um
Size: 500cmx30cm
High resolution
Easy to fade and filter
Good contrast before and after exposure
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 Included:
1x photosensitive dry film/in a pack.

Suggestions for use
1. Foil parameters
Temperature of reel : 100~120℃(210~248℉)
Pasting speed: 1.0~3.0m/min (3~10feet / min)
Pasting pressure: 35~50psi
Plate temperature: 40 to 65℃(105 to 149℉)
2. Exposure parameters
Exposure energy: 30-70mj/cm2
After exposure time: 15min
If it can maintain the pH≧10.6 (dissolved about 2.0 mil-ft2/L), it can get a better quality of production.
3. Developing parameters
Developer concentration: 0.8-1.2% Na2CO3H2O
Developer temperature: 28 to 32℃(82 to 89.6℉)
Developing time:40~48 seconds (28℃/82.4℉)

Using Warning:
1. There will be organic solvent evaporation film, the room should maintain a good ventilation.2. Dry film must be opened in the yellow light operation.
3. Both PE and PET protective film can not be used again after open.
4.If a film after plating needs to be placed more than 24 hours, please use a black film or other shading to block light.
5.Because the non-photosensitive dry film contains acrylic monomers, may cause skin allergies, especially those who are more susceptible to allergies.

Storage:
Should be placed in the temperature of 5℃--20℃(41℉-68℉), humidity 50%±10% of the environment, to reach the longest shelf life and validity.