Metal Painting Services
Rust does not stop because you painted over it. Metal work is won at the preparation stage, then held by an anti-corrosive primer under a compatible enamel.

Starting price
Price after site inspection
Where it is used
Gates, grills, railings, steel structures and shutters.
The failure mode on metal is always the same. Someone paints a gate that has light surface rust, it looks correct for a season, and then rust blooms back through the new enamel. Nothing was wrong with the paint. The corrosion was sealed in rather than removed.
So the work is graded by how far the rust has gone. Light surface bloom needs cleaning back and spot priming. Scaling rust that flakes away in layers has to be taken to sound metal across the affected area. Where steel is perforated or a weld has failed, coating is the wrong answer entirely and a fabricator has to go first.
Which Royaltec system goes on iron and steel?
Two layers, and both are ours. Royaltec Red Oxide Metal Primer is the anti-corrosive undercoat for prepared iron and steel. It is designed to protect against rust and corrosion and to improve the adhesion and longevity of the topcoat above it, and it is not intended to be left as the finish.
Over that, Royaltec Japan Black Enamel gives a traditional gloss-black film that grips well and resists moisture, abrasion and mild chemicals. It suits gates, grills and railings, and it is equally at home on machinery, tools, metal furniture and restoration work. Japan Black is intrinsically black, so where you want another colour the appropriate compatible enamel is named in the quote instead.
Thinning is specified rather than improvised. Royaltec Enamel Thinner is the match for oil-based enamels and synthetic primers, and Royaltec NC Thinner is for nitrocellulose products. Using an incompatible solvent affects application and the cured film, which on an exposed gate is the difference between a finish that holds and one that dulls early.
Gates, grills and shutters are coated across Madurai.
The same preparation standard applies in Coimbatore.
What’s included
Rust removed, not covered
Corrosion is taken back to sound metal, because enamel over rust keeps corroding underneath.
Anti-corrosive primer first
Royaltec Red Oxide goes on prepared iron and steel as the undercoat, never as the final coat.
Enamel matched to its thinner
Topcoat and solvent are specified as a pair so the film flows and cures as intended.
Fabrication kept separate
Perforated steel, failed welds and bent members need a fabricator before any coating.
A gate taken back to sound metal, then rebuilt in two coats
The same entrance gate before and after rust preparation, red oxide priming and enamel finishing.


How far has the rust actually gone?
This grading sets the preparation, and preparation is the majority of the labour on any metal job.
| Surface bloom | Scaling rust | Perforated steel | |
|---|---|---|---|
| What you see | Light orange film, metal still smooth | Layers lifting and flaking off | Holes, thin sections, failed welds |
| Preparation | Clean back and de-grease | Take affected areas to sound metal | Fabrication repair before any coating |
| Primer | Red Oxide on prepared spots | Red Oxide across the full area | After the steel is made good |
| Honest expectation | Long service from a short job | Good result, higher labour | Coating alone will not save it |
Each gate, grill or shutter is graded on site rather than priced from a photograph.
Two coats only work if the metal under them is clean
1. Strip and de-rust
Loose paint, rust, grease and old failed coating are removed to the recorded extent.
2. De-grease and dry
Oil and moisture are removed, because primer will not bond through either.
3. Red oxide primer
The anti-corrosive undercoat goes on prepared metal, including edges and rebates.
4. Enamel topcoat
Finish coats are applied with the compatible thinner and left to cure before use.
The products this service uses
Primer, enamel and thinner all come from our factory, which is what makes them a compatible system rather than three separate purchases.
FAQ
No. Corrosion continues under a new coat and pushes it off, usually within a season. Rust is taken back to sound metal over the affected area first, then primed. Anyone offering to simply paint over it is selling you the same job twice.
It is an undercoat, meant to improve protection and adhesion beneath a compatible topcoat. Left exposed it is not a finish. Gates are sometimes left in primer for months during construction, but they should be topcoated before that becomes permanent.
Japan Black is intrinsically a gloss-black coating, so it is black by design. Where you want a different colour, the appropriate compatible enamel is selected and named in the quote over the same red oxide primer.
It depends far more on exposure than on time. A gate taking direct rain and sun will need attention sooner than a sheltered internal railing. Watch the edges, joints and bottom rails, since those are where rust reappears first.
No. It is an anti-corrosive primer formulated for iron and steel. Wood and masonry need products designed for those surfaces, and using the metal primer on them gives you neither adhesion nor protection.
Coating cannot restore steel that has lost its section. Perforation, thin members and failed welds need a fabricator to cut in and replace the affected part. Once that is done the repaired gate is prepared, primed and finished normally.
Book a free site visit for Metal Painting Services
Tell us about your property. We’ll call within 24 hours to confirm a convenient visit and prepare a site-measured, itemised quote.


