Renovating old powder coated metal
Discussion
Wondering if anyone has any practical advice for me?
I have an old metal frame (its part of old equipment from our cricket club) that I'm hoping to renovate so we can get it back into use.
The frame was/is powder coated but as you would expect its come away in places and the underlying metal is rusting. Now I can scrape away the loose failing powder coating, treat the exposed metal but how would you then finish it?
I assume any typical exterior metal paints would struggle to adhere where the powder coating still exists?
Theres no money available so sending it off for blasting and re powder coating isn't really an option - I'd like a cheap DIY solution if possible.
Any views?
I have an old metal frame (its part of old equipment from our cricket club) that I'm hoping to renovate so we can get it back into use.
The frame was/is powder coated but as you would expect its come away in places and the underlying metal is rusting. Now I can scrape away the loose failing powder coating, treat the exposed metal but how would you then finish it?
I assume any typical exterior metal paints would struggle to adhere where the powder coating still exists?
Theres no money available so sending it off for blasting and re powder coating isn't really an option - I'd like a cheap DIY solution if possible.
Any views?
What do you want from it?
If you want to slow the rust down and crack on with getting use out of it for a few years, then wet sand or wire brush the rust off, a bit of jenolite if you're feeling generous, then a couple of coats of hammerite.
Proper job might be to galvanise it.
Plastic coating over metal that's previously rusted may be suspect?
It would seem that plastic coating is not a permanent solution as the existing has failed?
So, you have to balance money and effort put in, against the years of use you'll get back out.
Sometimes a basic job is cost effective.
sometimes a good answer is to cheaply extend the life of something while budgeting for a replacement, maybe the new one can be fundamentally longer lasting?
Other paints are available, for some jobs a zinc-rich or epoxy prime might be part of the answer.
If you want to slow the rust down and crack on with getting use out of it for a few years, then wet sand or wire brush the rust off, a bit of jenolite if you're feeling generous, then a couple of coats of hammerite.
Proper job might be to galvanise it.
Plastic coating over metal that's previously rusted may be suspect?
It would seem that plastic coating is not a permanent solution as the existing has failed?
So, you have to balance money and effort put in, against the years of use you'll get back out.
Sometimes a basic job is cost effective.
sometimes a good answer is to cheaply extend the life of something while budgeting for a replacement, maybe the new one can be fundamentally longer lasting?
Other paints are available, for some jobs a zinc-rich or epoxy prime might be part of the answer.
Re the blast and re powder coat - I guess I don't know how much 'not expensive' is - i assumed anything like that would be couple of hundred upwards. If its less than some decent paint then its worth it - although someone has to pay. I'm happy to fork out for a few bits plus my time.
It isn't a piece of kit that been used for years and we don't need it - but it would a nice thing to have. Hence I thought I'd try and do something with it.
My concern with Hammerite is whether it would adhere to the areas where the powder coating is still intact (which is across large parts).
This is a repair clause I drafted for a refurbishment project in Windermere in 2020 where removal and blasting was not an option. I was back at the property at the end of 2024 and all repairs were remarkably good (save for a bit of rust bleed through). Probably OTT for what you need but you get the general idea:
Chip off all rust and delaminating metal to the windows including the sub frames, casements and astragals using a chipping hammer or similar tool and take back to sound metal. Apply rust converter to all rusted sections (Kurust, Aquasteel or similar product) all in accordance with manufacturer’s instructions and leave for the prescribed time.
Repair all missing, delaminating and thinned metalwork to windows by building up with an epoxy putty metal repair system (such as JB Weld) and then cut back to original profile using a die grinder/flap disc or similar tool.
Prepare all exposed and repaired metal and apply 2 coats zinc rich primer (check compatibility with the selected metal repair product).
Re paint all metal windows using 2 undercoats and 1 gloss coat of Dulux Weathershield oil based paint.
Chip off all rust and delaminating metal to the windows including the sub frames, casements and astragals using a chipping hammer or similar tool and take back to sound metal. Apply rust converter to all rusted sections (Kurust, Aquasteel or similar product) all in accordance with manufacturer’s instructions and leave for the prescribed time.
Repair all missing, delaminating and thinned metalwork to windows by building up with an epoxy putty metal repair system (such as JB Weld) and then cut back to original profile using a die grinder/flap disc or similar tool.
Prepare all exposed and repaired metal and apply 2 coats zinc rich primer (check compatibility with the selected metal repair product).
Re paint all metal windows using 2 undercoats and 1 gloss coat of Dulux Weathershield oil based paint.
LivingTheDream said:
Wondering if anyone has any practical advice for me?
I have an old metal frame (its part of old equipment from our cricket club) that I'm hoping to renovate so we can get it back into use.
The frame was/is powder coated but as you would expect its come away in places and the underlying metal is rusting. Now I can scrape away the loose failing powder coating, treat the exposed metal but how would you then finish it?
I assume any typical exterior metal paints would struggle to adhere where the powder coating still exists?
Theres no money available so sending it off for blasting and re powder coating isn't really an option - I'd like a cheap DIY solution if possible.
Any views?
I haven't used this myself - but it's sold as a specific paint for your intended purpose?I have an old metal frame (its part of old equipment from our cricket club) that I'm hoping to renovate so we can get it back into use.
The frame was/is powder coated but as you would expect its come away in places and the underlying metal is rusting. Now I can scrape away the loose failing powder coating, treat the exposed metal but how would you then finish it?
I assume any typical exterior metal paints would struggle to adhere where the powder coating still exists?
Theres no money available so sending it off for blasting and re powder coating isn't really an option - I'd like a cheap DIY solution if possible.
Any views?
https://www.lubricantsuppliers.com/product/ff114pc...
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