Pre-coating agent (Q206)
Classification:
Product Description
1. Performance and Applications
Pre-coating agent for metal equipment and pipelines in circulating cooling water systems. This product can form a dense chemical precipitation film on clean metal surfaces to protect metal equipment from corrosion. It is also a corrosion inhibitor that can be used during normal operation of circulating water, with a dosage concentration of 10~20mg/L. When used as a pre-coating agent, the dosage concentration is 300~500mg/L.
2. Quality Indicators
Indicator Name | Indicator Requirements |
Appearance | White powdery solid |
Total Phosphorus (as PO3-4 calculated in %) | >20.0 |
Solubility (g/100mL) | >=10.0 |
3. Usage Method
When the circulating water system is at a safe low water level, add this product at 300~500mg/L, controlling pH between 5.5~7.0.
si, Packaging and Storage
Packed in 25kg plastic-coated woven bags. Store in a ventilated, dry, and cool place. Storage period is 6 months.
Cleaning, Pre-filming
metal
water
circulating
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