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Product keywords:Zinc sulfateFerrous SulphateMagnesium SulphateKieserite Fertilizer Water Treatment SeriesCalcium hypochloriteZinc oxide
Product Type
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ADD:Donglan Tuo Village, Wang Wenzhuang Town, Xiqing District, Tianjin, China
Mobile phone:+86-13920818696
Sales/Service Tel:+86-15202298304

Water Treatment SeriesTianjin Xinxin Biotechnology Research And Development Center
Product Name:pre-filming agent
Type: Water Treatment Series
Chinese Name:清洗预膜剂


Compound of polyphosphate, zinc salt and other chemical additives which has good corrosion inhibition to metal and controlling corrosion of recirculated cooling water at initial period to patch and maintain protective film. It also uses as pre-film agent for cycling water system coordinating with the cleansing agent to apply in steel and iron, petrochemical, chemical industry and electric power.


Appearance:White powdery solid.

Total phosphate(P2O5):≥40%

Dosage and usage

 Initial amount is8~ 20ppm. Pre-film is 400~ 1000ppm.

Safety protection

No special requirements.

Package and storage

 Inner layer plastic bag and outer layer knitting bag, net weight is 25kg/bag or 50kg/bag.



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