Hammerite Direct To Rust Metal Paint can be painted directly onto rusty surfaces and thanks to its special 3 in 1 formula there is no need to use a primer or undercoat - saving you precious time Hammerite forms a superior barrier that not only seals out moisture but also gives long-lasting protection both inside and outside Touch dry in an hour Hammerite is corrosion resistant and is suitable for use on a wide range of exterior metal including gates railings drainpipes guttering and garden furniture The paint has a subtle hammered effect with a metallic sheen Protects for up to 8 years