On 04/06/2025 19:27, Andrew wrote:
A few years ago I stripped my metal galvanised garage door
with a heat gun and repainted it with a coat of Galvafroid
followed by grey undercoat.
At this point the door was about 40 years old (house built
1976) and this door had been painted twice since the original
builders painted it, firstly by the previous owner who slapped
on another coat of black gloss paint which I stripped off to bare
metal about 20 years ago. I also used galvanised primer plus
undercoat plus gloss back then. It was fine for over 10 years
until the paint started cracking along the creases and folds
in the door.
I then repeated full metal strip with Galvafroid but left it at
the undercoat stage while doing other jobs (and dithering about
demolishing the by now detached garage and having an extension).
The extension plans have now been abandoned but I notice that
the primer+undercoat has cracked and is flaking off in many
places.
I really don't want to strip it again. If I remove all the
flaky/cracking bits and carefully feather the paint edges,
what are chances of just touching in the bare galvanised
spots with the correct primer, plus a new undercoat and
gloss ?. Will this stop further flaking, or have I shot
myself in the foot leaving it at undercoat for many years ?
Andrew
My garage doors are similar. I just pressure wash the loose stuff off
every twenty years and slap on whatever crap is currently available for 'exterior metalwork'
I cant be arsed to make it a pukka job.
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