Technical Data SheetROVAL Cold Galvanizing CompoundDescription
ROVAL Cold Galvanizing Compound contains 96% zinc powder in its dry film. Equivalent anti -corrosion
performance to hot-dip galvanizing. As it’s prepackaged in single packs, it doesn’t require mixing, or
the additional use of a primer or top coat. It’s easy to use and can be applied directly to steel andgalvanized surfaces. Like other conventional paints, it can be applied with a brush or a roller, as aconventional spray, or an air-less spray. An aerosol version is also available.

Liquid productComponents

Zinc powder, Binder, Aromatic thinnerSpecific Gravity

2.50kg/L (± 0.10kg/L)

Type of thinner
Theoretical coverage
Application Conditions

ROVAL Thinner or Aromatic thinner like Xylene.
(Within 5% of paint weight)
For 40μm DFT: 4m²/kg or 0.25kg/m²
For 80μm DFT: 2m²/kg or 0.5kg/m²
Temperature 5-40°C, Humidity < 85%
The metal substrate temperature < 50°C

Product warranty period

3 years from manufacturing date (unopened)

Pot life

If closed correctly after use, it can still be used.

Storage

Protect from sunshine and store in a well-ventilated place.

Dry film
Color

GrayGlossMatte
96% (± 1%) by weight, use zinc ingot with a purity of 99.995% .

Zinc content

ROVAL conforms to the standard ASTM A780 in regard of its use as
repair coating for hot-dip galvanizing.

Dry film thickness

80μm (40μm x 2 coat)
For 40μm DFT at 20°C, humidity 65% condition

Drying time>> Touch dry and overcoating: 30min>> Fully cured: 24 hours

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Surface Preparation
ROVAL products requires direct contact between the zinc dust in the film and the metal substrate for
optimum performance. Since the surface must be dry and free of any other paint and contaminants,
employ adequate methods to remove them thoroughly.
(1) Salt: Use high pressure washing to remove salt deposits.
(2) Oil: Wipe off perfectly with solvent rags.

Steel surface

PurposeGalvanized surface

Hot-dip-galvanizing

Long-term rustalternative

prevention

SurfaceMill scale, Red rust,condition

Old paint film, Welded part

Improved anti-corrosion performance ofnew galvanized surfaces.
Renovation of old galvanized surfaces.
Red rust,Old paint film,
Welded partNo red rust
(Only white rust)ISO8501 Sa2 1/2 *1

ISO8501 St3

ISO8501 St2Surface

Remove all the rust

Use a power tool to expose a clean

Use a hand tool topreparationand mill scale bymetal surface.

remove white rust.

sandblasting*1 Confirmation method: Compare the surface with standard photograph by visual observation.

Adequate agitation of products
Because ROVAL products contains a lot of powdered zinc, the contents may settle at the bottom of
the can. Use a power paint mixer to obtain uniform density.

Coating method
ROVAL series are an easy-to-handle, single liquid type compound. It does not require any mixing liketwo liquids and has no limitation of pot life. The rest of the paint can be kept in a closed container.

Brush / Roller

Dilution is not required.
Only when the product thickens, use thinner within 5% of paint weight.
Use Gravity feed spray gun.

Conventional sprayNozzle size: 1.5~2.0mm,

Pressure: 0.3MPa

Dilution: 0~5%

Paint strainer: #100

Tip size: above 0.017inches (e.g.517)
Air-less sprayPressure: above 20MPa,

Gun filter: #50~60

Dilution: 0~5%

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Coating Specifications
ROVAL + ROVAL
Theoretical

Practical Coverage *1

CoatingDry filmCoverage

BRUSH

SPRAYIntervalThickness(g/m²)(g/m²)(g/m²)

(min)

(μm)

Surface Preparation

Refer to [Surface preparation](1 st coat)
ROVAL(2 nd coat)
ROVAL
Total

250300325

30~6040250300

32540500

600

65080

*1 Practical coverage includes 20% of loss for brush application, and 30% for spray application

Coating interval
Temperature

5˚C10˚C20˚C30˚C40˚C

Recommended Interval (min)604030105*Based on the condition: thickness 40 μm, humidity 65%.

Properties
Test item
Hardness

Method used
JIS K5600-5-4:1999 (ISO/DIS15184:1996)
Pencil scratching

ResultPencil B

JIS K5600-5-6:1999 (ISO2409:1992)
Adhesion

Peel off a sticky tape on 25 cells check pattern

No abnormality(square: 2mm x 25)
Heat resistanceElectrical constant temp. drier
170°C, 24 hours

No abnormality

Low temp. cycle test for 72 cycles
Cold resistance<1 cycle> Left at -30°C for 5 hours andNo abnormality

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Anti-corrosion performance
Test item

Testing method

Duration

Water immersion

Immersed in ion exchanged water

3 months

Salt water immersion

Immersed in 3% salt water

3 months

Result
No abnormality otherthan white rust
No abnormality otherthan white rust

JIS K 5600-7-1:1999 (ISO7253:1984)
Salt spray

5%NaCl (pH6.5~7.2)

2256 hours

Temp of spray chamber: 35±1°C

No abnormality otherthan white rust

Packaging & Painting area
Aerosol 420ml

0.5 m² / can24 cans / case

1 kg

2 m² / can *8 cans / case

2.5 kg

5 m² / can *4 cans / case

10 kg

20 m² / can *1 can25 kg

50 m² / can *1 Pail* The theoretical coating area is displayed. For practical coverage, consider a 20% loss with brush application,
30% loss with spray application.

Refer to✓ROVAL Series Paint Specifications✓ROVAL Safety Data Sheet

https://rovalworld.com/TDS-R

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