What is the maximum time for the paint to become surface dry?

The maximum time for surface drying is 4 hours, as specified in Table 1.

What is the minimum flash point for this paint?

The flash point shall not be less than 35°C (Table 1), which is important for storage and handling safety.

How is the paint's anti-corrosive property tested?

It is tested by exposing a painted panel to high humidity for 10 days; it should show no signs of corrosion (Clause 4.8).

What kind of finish should be expected from this paint?

The paint should dry to a smooth and black finish, free from sagging, cracking, or other defects (Clause 4.3).

IS 14217

: 2004

Bituminous Black Paint for Use on Steel Work Exposed to Weather - Specification

CurrentFrequently UsedSpecificationMaterials Science · Painting, Coatings and Surface Finishing

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This standard lays down the requirements, sampling procedures, and testing methods for single-pack, air-drying bituminous black paint. This type of paint is primarily used for the protection of steel structures that are exposed to outdoor weather conditions, providing a barrier against corrosion.

Specifies requirements and methods of test for bituminous black paint suitable for application on steelwork exposed to weather.

Quick Reference Values

Drying time (Surface dry), max4 hours

Drying time (Hard dry), max18 hours

Flash point, min35 °C

Mass in kg/10 litre, min9.0 kg

Volatile matter, max55 % by mass

Flexibility and Adhesion TestPass (No cracking or detachment)

Protection Against Corrosion (10 days at high humidity)Pass (No signs of corrosion)

Practical Notes

Proper surface preparation, including removal of rust, scale, and grease, is critical for the paint's adhesion and performance.

This paint is intended for atmospheric exposure and is generally not suitable for continuous immersion in water or exposure to aggressive chemicals.

Always check the batch number and manufacturing date before use, as paint properties can degrade over time.