Pressure washer taken layer of paint off!

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Soldato
Joined
24 Oct 2002
Posts
3,257
Location
Warwickshire
My car has been pressure washed and it's fine apart from on the bonnet where there are now patches where it's taken a layer of paint off!

Why has this happened? and will I now need it resprayed to get it sorted or will t-cut help?



 
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A pressure washer used at the correct distance/pressure shouldn't damage the paint. I would guess assuming the jetwash was not used 5cm from the bonnet that at some point the bonnet has been resprayed to a lesser quality finish than the factory paint.

I would expect the best method to fix the damage is to get the bonnet resprayed should be around £150-200.
 
The defect/weakness in the lacquer has to already be there to lift the paint. Good, well applied paint should not lift even under close pressure washer use.

The area/panel will need to be resprayed, T-Cut can't fix that.
 
AtreuS said:
And you better do something as its down to bare metal on that second pic. Rust ahoy!
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To be honest, that's a tiny stone chip. If the metal is galvanised anyway it won't rust, if not then a tiny blob of nailvarnish or some other sort of lacquer will protect it until the paintwork is sorted. It won't turn into a 6" hole overnight or anything ;)
 
ive not seen that happen with a pressure washer before, i even left my gf to rinse our cars today after they had been washed, she didnt manage to blast any paint off and after absolutely years of using pressure washers, ive never damaged paint on a car

i think your paint was damaged before you started
 
A pressure washer shouldn't and doesn't lift paint. I have used some very powerful/industrial strength power washers on cars before with no problems.

I'll hazzard a guess and say the lacquer/clear coat was already peeling before the pressure washer hit it!
 
The paint was definitely damaged before, a jet wash won't harm good paint. That said, I stopped using my jet wash after it blew up ages ago and wonder why I ever bothered with it, it offers no real advantage unless the car is super ultra filthy with loose dirt.
 
Oh dear, poorly applied waterborne basecoat strikes again :(

That panel has been refinished (resprayed) in the past, and insufficient drying time for the base (colour) coat has caused poor adhesion of the clearcoat (lacquer). It would almost certainly have come off by itself eventually, when stone chips created a starting point for water ingress and delamination, but you've helped it on its way.

As said above, another respray is the only cure, but make sure that whoever does it removes all of the remaining clearcoat rather than just painting over it, or you'll just have the same thing all over again. A good blast with a high pressure airline from close range will probably have it peeling off in sheets.
 
paintguy said:
Oh dear, poorly applied waterborne basecoat strikes again :(

That panel has been refinished (resprayed) in the past, and insufficient drying time for the base (colour) coat has caused poor adhesion of the clearcoat (lacquer). It would almost certainly have come off by itself eventually, when stone chips created a starting point for water ingress and delamination, but you've helped it on its way.

As said above, another respray is the only cure, but make sure that whoever does it removes all of the remaining clearcoat rather than just painting over it, or you'll just have the same thing all over again. A good blast with a high pressure airline from close range will probably have it peeling off in sheets.
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I think this guy will be handy to have around in the future - stick around :)
 
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