1、 Overview:

Film stripping solution st-525# is a semi organic long-term film stripping solution specially prepared for the stripping of printed circuit board circuit ink / dry film. It contains a variety of high-energy fiber dissolving agents and cosolvent, which enhances the solubility of ink / dry film, and uses hydroxide to replace some expensive organic bases, making it more cost-effective; It has no measurable influence on various substrates and tin coatings represented by FR4. It is suitable for all kinds of high-density and fine circuit boards. It is the best stripping agent for all kinds of inks and dry films.

2、 Technical indicators:

Appearance: colorless to light yellow low viscosity liquid

PH value: 13 ± 0.5 (1% aqueous solution)

Density: 1.15 ± 0.02

Packing: 20kg, 25kg or as required by the customer.

3、 Operating conditions:

Take semi water soluble dry film / photosensitive circuit ink as an example:

ST-525^#10-20%

temperature40-50⁰C

time3-8min

4、 Storage:

Storage: store at room temperature

Period of validity: 12 months

5、 Precautions:

1. This product is strongly alkaline and corrosive. If you accidentally touch the skin, please wash it with plenty of water and then wash it with dilute acetic acid or vinegar;

2. Due to the different properties of various inks, the above data may be different;

3. Please make a few samples before use to determine the best operating conditions;

4. Not applicable to FR2 paper substrate, which may cause the color change of the substrate.