Wash Primer is a phosphoric acid-based etch solution designed for treating new, unweathered galvanized surfaces prior to painting. It provides excellent surface etching and adhesion promotion, ensuring strong bonding of subsequent coating systems. Wash Primer is commonly used as a pretreatment coating to enhance corrosion resistance and improve paint performance.
| Sr. No | Product | Description | DFT (µm) | Colour | Finish | Mixing / Thinning | Reaction / Drying | Applications |
|---|---|---|---|---|---|---|---|---|
| 1 | SIGMA ETCH | Phosphoric acid–based etch solution for treating new, unweathered galvanized surfaces prior to painting. Improves surface activation and coating adhesion. | Not applicable | Pale blue solution | Not applicable |
Ready to use No thinner required |
Reaction time: 1 hr @30°C Rinse & dry before coating: up to 48 hrs @30°C |
Surface pre-treatment for galvanized steel, GI sheets, handrails, structures before priming |
