Hi,
I need to paint a balcony railing that's a real mix of metals (all new and unpainted).
1. Cold-galvanised metal profiles
2. Hot- galvanised metal strips (a little bit of chips in the galv layer at edges) - these have some flexibility to move (over a 500 mm length they can bend a couple of mm in the middle)
3. Thin iron bars
4. Galvanised nuts and bolts
5. Welds - unfortunately, in difficult places and not neat
As soon as I complete the welding (not major) on a portion, I spray cold glav paint on the iron bars and on the welds.
So - my dilemma.... do I assume that the zinc paint is as good as galv and use Hammerite direct to galv ?
Should I prime first with a non-iron primer, then Hammerite direct to galv ?
Should I prepare the surface another way first ?
Or use another type of paint ?
Am looking to delay the onset of rust as much as I can....
Grateful for any input -
D.
I need to paint a balcony railing that's a real mix of metals (all new and unpainted).
1. Cold-galvanised metal profiles
2. Hot- galvanised metal strips (a little bit of chips in the galv layer at edges) - these have some flexibility to move (over a 500 mm length they can bend a couple of mm in the middle)
3. Thin iron bars
4. Galvanised nuts and bolts
5. Welds - unfortunately, in difficult places and not neat
As soon as I complete the welding (not major) on a portion, I spray cold glav paint on the iron bars and on the welds.
So - my dilemma.... do I assume that the zinc paint is as good as galv and use Hammerite direct to galv ?
Should I prime first with a non-iron primer, then Hammerite direct to galv ?
Should I prepare the surface another way first ?
Or use another type of paint ?
Am looking to delay the onset of rust as much as I can....
Grateful for any input -
D.