Star Metal Shield Water Base

It withstands 300 hours of continuous neutral salt spray without failure — over 3x the 96-hour Indian Standard requirement for an air-drying metal primer — while its dense, low-permeability film limits water absorption to just 1.8% at 24 hours.

No. It's a single-pack direct-to-metal (DTM) coating that combines primer-level corrosion inhibition with finish-level appearance in one product, eliminating the separate primer step.

Yes. Its water-thinnable formula has a VOC content below 35 g/L, negligible solvent odour, and is non-flammable in the liquid state, making it suited to occupied and hot-work-restricted job sites.

Two coats totalling 100–150 µm DFT are recommended for full DTM protection on exterior and maintenance work; a single coat of 65–90 µm DFT is acceptable for light-duty interior service.

Prepared ferrous and non-ferrous metal substrates, including structural steel, galvanised steel, and aluminium after appropriate mechanical or chemical pre-treatment, across corrosivity categories C2 to C3, and C4 in a suitably engineered multi-coat system.

Yes. It can be applied as supplied or diluted up to 5% with water for brush and roller, diluted approximately 2:1 for conventional spray, or diluted 0–5% by volume for airless spray.

The surface is touch dry in 15–30 minutes and hard/handling dry in 24 hours at 30°C and 60% RH, with minimum recoat after 4–6 hours and full cure — maximum hardness and corrosion resistance — reached at 72 hours.

Loose, flaking or poorly adhering coating must be removed back to a firm, feathered edge and intact glossy coating abraded to a matt finish first; on rusted steel, all loose rust and mill scale must be removed and the surface degreased and cleaned before application.

No. It is not recommended for continuous water or chemical immersion, or for surfaces in sustained contact with strong acids, alkalis or solvents — for immersion or permanently wet conditions, a purpose-designed system should be specified.

Theoretical coverage is approximately 8–9 m² per litre at 50 µm DFT; practical coverage of 6–7 m² per litre should be assumed to allow for surface profile, geometry and application losses.

Yes. Alongside the standard anticorrosive pigment package, Star Metal Shield Water Base can be supplied with a heavy-metal-free package with no added lead, hexavalent chromium, cadmium or mercury, for specifications that prohibit zinc-bearing or chromate inhibitors.

Shelf life is 18 months from manufacture in unopened original packaging. Store upright in sealed containers, under cover, out of direct sunlight, between +5°C and +30°C, and protect from frost — a frozen product is irreversibly damaged.