IS 2932 specifies synthetic enamel paint (alkyd-based) for exterior use. It covers both undercoat and finishing coat grades. This is the standard specification for the most commonly used exterior paint type in Indian construction — oil-based enamel for doors, windows, metal railings, and exterior woodwork.
Specification for synthetic enamel paint for exterior use, covering both undercoat and finishing coat requirements including composition, drying time, gloss, hardness, and durability.
Key Values
Drying time (touch dry)Max 4 hours
Drying time (hard dry)Max 12 hours
Gloss (finishing coat)Min 70 at 60°
Practical Notes
! Apply undercoat (IS 2932 Part a) before finishing coat (Part b) — finishing coat alone on bare surface peels quickly.
! Minimum 2 coats of finishing enamel over 1 coat of undercoat for standard exterior protection.
! Do not apply in rain, fog, or when surface temperature is below 10°C.
! Enamel paints are being replaced by water-based emulsions for interiors, but remain preferred for exterior metalwork due to better moisture resistance.