Zinga Film Galvanising System 1kg

Zinga is a one-component film galvanising system that protects steel with a dry film containing 96% ultra-pure zinc. Applied by brush, roller or spray, it gives cathodic (sacrificial) protection comparable in principle to hot-dip galvanising, without the need for a galvanising bath.

Use it as a stand-alone coating, as a primer under compatible topcoats in a duplex system, or to repair and recharge worn hot-dip galvanising, metal-sprayed zinc or existing Zinga. Because it is applied at ambient temperature, it suits structures already on site, too large for a bath, or where heat distortion must be avoided.

The zinc acts as a sacrificial anode: in the presence of moisture it corrodes in preference to the steel, and zinc salts fill the film’s natural porosity to add a barrier effect. A fresh coat can recharge an existing layer after surface salts are removed, so protection can be restored without building up incompatible layers.

Features

• Active cathodic protection plus passive barrier protection
• Single-pack, unlimited pot life; does not skin over in the can
• Applied by brush, short-fibre roller or conventional/airless spray
• Can be recharged later with a new coat of Zinga after light surface preparation
• Flexible metallic film that bends with the steel rather than peeling like a conventional paint

Specifications

• Zinc content (dry film): 96% (±1%) by weight
• Zinc purity: 99.995% (ASTM D520 Type III)
• Colour / gloss: grey (patinates) / matt
• Density: 2.67 kg/dm³ (±0.06)
• Solids: 80% by weight (±2%); 58% by volume (±2%)
• VOC: 474 g/L (178 g/kg)
• Flash point: 54°C
• Thinner / cleaner: Zingasolv
• Typical dry film thickness: 40–150 µm DFT (system-dependent; stand-alone often two coats)
• Theoretical coverage at 60 µm DFT: 3.62 m²/kg (9.67 m²/L); consumption 0.28 kg/m²
• Theoretical coverage at 120 µm DFT: 1.81 m²/kg (4.83 m²/L); consumption 0.55 kg/m²
• Drying (60 µm DFT, 20°C, well ventilated): dust dry about 15 min; touch dry about 30 min; dry to handle about 90 min; full cure about 24 hours
• Service temperature: −40°C to +120°C, with peaks to +150°C
• pH resistance: atmospheric about 3.5–12.5; immersion about 5.5–9.5
• Surface preparation (optimum on steel): blast clean to Sa 2½ with a suitable profile (typically 50–70 µm)
• Pack sizes commonly available: 1 kg, 2 kg, 5 kg, 10 kg (aerosol also available as Zingaspray)
• Practical coverage depends on surface profile, method and wastage. Always follow the current technical data sheet for thinning, overcoating intervals and compatible topcoats. Alkyd enamels should not be applied over zinc coatings.