ISO 1461, IS 4759 galvanizing in Chennai—zinc coating, precision finishing, fast turnaround, certified QC.
RR GalvaGlow
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Need reliable galvanizing pickling & cleaning in Chennai? RR GalvaGlow provides ISO 1461 / ASTM A123–aligned surface preparation for galvanizing—degreasing, HCl pickling, rinsing, ZAC fluxing, and controlled drying—for clean steel and strong zinc adhesion.
Our pretreatment removes oil, paint residues, rust, and mill scale so the subsequent galvanizing stage achieves a uniform, defect-free coating. Batch QA logs are recorded and available on request.
Steel surfaces must be chemically clean before galvanizing. Any oil, paint, rust, or mill scale can prevent proper bonding of zinc.
Alkaline/solvent cleaning to remove oil, grease, cutting fluids
Controlled HCl bath with inhibitors to remove rust, scale, oxides
Two-stage fresh water rinse to prevent acid carry-over
Zinc ammonium chloride (ZAC) flux for wetting & anti-oxidation before dip
Each step is critical to ensure:
| Step | Description |
|---|---|
| Degreasing | Alkaline / solvent tank cleaning to remove oil/grease |
| Pickling | HCl (hydrochloric acid) bath to strip rust, scale |
| Rinsing | Fresh water tanks to wash off acid and debris |
| Fluxing | Zinc ammonium chloride bath to coat surface with protective film |
| Drying | Hot air drying before hot dip galvanizing begins |
| Parameter | Control / Notes |
|---|---|
| Degreasing | Alkaline tank; bath strength & temp logged |
| Pickling | HCl with inhibitors; pH/acid concentration checks |
| Rinsing | Two tanks; TDS/contamination monitoring |
| Fluxing | ZAC bath; density/iron build-up control |
| Drying | Hot-air drying; moisture removal before dip |
| Documentation | Batch log, QA strip tests, visual before/after |
Our facility is fully equipped for:
We support all sectors where high-integrity galvanizing is critical:
| Standard | Description |
|---|---|
| IS 2629 | Indian Standard for surface preparation & process control before hot-dip galvanizing |
| ASTM A123 | Zinc coating on iron and steel products |
| ISO 1461 | Global standard for hot-dip galvanizing |
We conduct rigorous pre- and post-cleaning tests:
| Feature | Advantage |
|---|---|
| Acid-neutral tanks & safe rinsing | No acid carry-over to zinc bath |
| Controlled HCl pickling with inhibitors | Uniform surface profile |
| Zinc ammonium chloride fluxing | Better zinc bonding on corners, threads |
| Trained operators & lab testing | Consistency across batches |
| Encapsulated Pretreatment Room | Safe & Environment friendly |
Pickling removes rust, mill scale, and oxides so zinc can form a strong metallurgical bond with steel.
Alkaline degreasers, hydrochloric acid (with inhibitors), fresh-water rinses, and zinc ammonium chloride (ZAC) flux.
Paint and heavy coatings usually require mechanical or solvent stripping before acid pickling. Share photos/drawings for guidance.
Yes. We can provide standalone surface preparation services with QA logs if galvanizing is done elsewhere.
Visual inspection, bath strength/pH tracking, contamination monitoring, and random panel/strip tests. Logs available on request.
Looking for reliable hot dip galvanizing in Chennai and across Tamil Nadu? Share your project details and our team will respond with pricing and lead time within 24 hours.