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Aerosols.
Posted: Thu Aug 29, 2024 1:14 pm
by stuffedpike20
I bought two aerosols from ebay to paint a spare bonnet.
They were £13 each, and the seller claimed a gloss finish straight out of the can.
All I am getting is orange peel. I have sprayed about 7 coats now. Each time the wet paint looks promising, but dries to a dull orange peel.
I think I have wasted my money. Don't get caught out like me.
Re: Aerosols.
Posted: Thu Aug 29, 2024 1:22 pm
by Chipper
You'll probably need to add a few coats of clear coat (lacquer) to get a decent shine, as with most modern paints; when spraying professionally, you primer it, base coat it then lacquer it. Then, de-nib and polish.
Re: Aerosols.
Posted: Thu Aug 29, 2024 2:16 pm
by svenedin
Orange peel can often be caused by silicone contamination. Silicone is in modern car waxes (and also incidentally in spray furniture polish) and it is also used as silicone grease in polyurethane bushes and as an alternative to red rubber grease on rubber parts.
You will need to go back to the original surface you were trying to paint and then clean meticulously to remove all traces of silicone using panel wipe. Be careful that you don't just smear the silicone around. Wipe with a good quality paper towel soaked in panel wipe and then throw that towel away, then repeat with a fresh towel. Finally use a tack cloth to remove any lint or dust.
Stephen
Re: Aerosols.
Posted: Thu Aug 29, 2024 3:00 pm
by stuffedpike20
Thanks folks.
The bonnet I am spraying is already painted with raw uncut cellulose that I painted last year, and flatted with wet and dry, so no contamination.
The advert for the aerosols said no clear coat was needed.
I use panel wipe before spraying every time.
I think the paint is no good. Don't be tempted.
Re: Aerosols.
Posted: Thu Aug 29, 2024 4:51 pm
by Chipper
Maybe the aerosol paint isn't compatible with the cellulose underneath...
Re: Aerosols.
Posted: Fri Aug 30, 2024 11:58 am
by stuffedpike20
Chipper wrote: ↑Thu Aug 29, 2024 4:51 pm
Maybe the aerosol paint isn't compatible with the cellulose underneath...
Thanks for the suggestion, but the aerosols are cellulose.
Re: Aerosols.
Posted: Fri Aug 30, 2024 12:11 pm
by Chipper
Fair enough. Tbh, it's quite rare to actually ever achieve a decent finish with aerosols in my experience. I've done several bicycle frames, car wheels, etc. over the years with them and even if you obtain a decent finish, it's very thin and easily chipped, plus the paint being so thin runs easily.
Re: Aerosols.
Posted: Fri Aug 30, 2024 1:33 pm
by stuffedpike20
My neighbour is now 80 years old.
He tells me that when he was a young man, he got great results spraying motorbike petrol tanks using a tyre as the pressurised air source for the spray gun, and cellulose paint.
I think the paint must have been MUCH better in those days.
Re: Aerosols.
Posted: Fri Aug 30, 2024 1:48 pm
by philthehill
Back in the day my father resprayed his Ford Popular using a cylinder vacuum cleaner. The sprayer was attached to the vacuum outlet and the rush of air was sufficient to pressurise the spray gun. The result was quite good but not up to factory standards.
Re: Aerosols.
Posted: Thu Sep 05, 2024 12:24 pm
by OGY985K
My dad also used a vacuum cleaner…in his case it was to spray Vauxhall Victor.
Re: Aerosols.
Posted: Thu Sep 05, 2024 1:45 pm
by myoldjalopy
OGY985K wrote: ↑Thu Sep 05, 2024 12:24 pm
My dad also used a vacuum cleaner…in his case it was to spray Vauxhall Victor.
Nice, clean finish, I expect!
