1、 Overview:

Film remover st-522# is a kind of high-efficiency film remover specially prepared for the stripping of printed circuit board circuit ink / dry film. It contains a variety of ultra-high energy fiber dissolving agents and cosolvent, which enhances the solubility of ink / dry film, so that the alkali content can be reduced to a level that has little impact on the substrate and tin coating. Even if the paper-based phenolic board is treated, the substrate will not change color. It is the best film remover for various inks and dry films.

2、 Technical indicators:

Appearance: colorless to light yellow low viscosity liquid

PH value: ≥ 13

Density: ≈ 1.1

Packaging: 20 liters, 25 liters or as required by the customer.

3、 Operating conditions:

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

ST-522#20-50%

Temperature 40-500c

Time 3-8min

4、 Storage:

Storage: store at room temperature

Period of validity: six months

5、 Remarks:

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.