Hi guys, I've a 1930s house with cast downpipes and soil pipe, previously painted with dulux exterior white paint. Parts of the pipes above the gutters are showing broken paint with bubbled rust underneath, question is how best to paint them? There is also a rust spot that has bled a discoloured rust line down undamaged white paint, this is surface of the paint only with no bubbling underneath the line.
Being cast I'm unsure how to proceed apart from removing the rust, do I then need a rust stabilizer/neutralizer, and if so of what type, before topcoating?
And if so will it be ok to use the same to overcoat the rust line mentioned above, or does this line need sanded away?
I have in the garage a few rust inhibitor products from previous car/garage projects.....a zinc primer, a Halfords Rust neutralizer and Owatrol oil....any of these any good?
Thanks for your help
Being cast I'm unsure how to proceed apart from removing the rust, do I then need a rust stabilizer/neutralizer, and if so of what type, before topcoating?
And if so will it be ok to use the same to overcoat the rust line mentioned above, or does this line need sanded away?
I have in the garage a few rust inhibitor products from previous car/garage projects.....a zinc primer, a Halfords Rust neutralizer and Owatrol oil....any of these any good?
Thanks for your help