Peeling bumper - prev damage? No primer?
Discussion
It's been some years since I've been out of the paintwork game, but they did move away from traditional primer to a clear coat of 'adhesion promoter' to achieve the same thing.
Either which way it appears to have lost its adhesion though either poor prep work or abuse by something like a jet wash as suggested above.
Either which way it appears to have lost its adhesion though either poor prep work or abuse by something like a jet wash as suggested above.
Trailhead said:
Yes - it was the jet wash that did it. However I’ve never had this problem with a jet wash before.
Does anyone know if this should have had primer on and therefore is the result of a cheap repair?
A lot of plastic parts font have a normal primer these days especially as they are provided prepaited at the factory'sDoes anyone know if this should have had primer on and therefore is the result of a cheap repair?
Chris32345 said:
Trailhead said:
Yes - it was the jet wash that did it. However I’ve never had this problem with a jet wash before.
Does anyone know if this should have had primer on and therefore is the result of a cheap repair?
A lot of plastic parts font have a normal primer these days especially as they are provided prepaited at the factory'sDoes anyone know if this should have had primer on and therefore is the result of a cheap repair?
So just my own fault then for jet washing a vulnerable part... that’s a shame... :-(
Defcon5 said:
Unless you were poking the paint with the nozzle of your nuclear powered jet wash I don’t think it’s reasonable for that to happen.
Thousands of cars are washed daily with a jet wash, and the roads aren’t full of half stripped cars.
Plastics are particularly vulnerable, it only takes water to get under a stone chip and it'll lift off a strip of paint. Thousands of cars are washed daily with a jet wash, and the roads aren’t full of half stripped cars.
Have you seen what a jet wash can do to a paving slab or tyre?
How u doing said:
Defcon5 said:
Unless you were poking the paint with the nozzle of your nuclear powered jet wash I don’t think it’s reasonable for that to happen.
Thousands of cars are washed daily with a jet wash, and the roads aren’t full of half stripped cars.
Plastics are particularly vulnerable, it only takes water to get under a stone chip and it'll lift off a strip of paint. Thousands of cars are washed daily with a jet wash, and the roads aren’t full of half stripped cars.
Have you seen what a jet wash can do to a paving slab or tyre?
I think I’ll be chalking this one up to experience rather than heading down the warranty route.
Could be pricey.
Funnily enough I have a Golf in the workshop with exactly the same issue.
Just because you can't see primer doesn't mean it hasn't been primed because usually plastic is primed with an adhesion promoter which is clear and has no build thickness.
However as a repairer I've learnt the hard way, especially on front bumpers that are more prone to stone impact,adhesion promoter on it's own isn't enough.
I now follow that with 2k primer.
Just because you can't see primer doesn't mean it hasn't been primed because usually plastic is primed with an adhesion promoter which is clear and has no build thickness.
However as a repairer I've learnt the hard way, especially on front bumpers that are more prone to stone impact,adhesion promoter on it's own isn't enough.
I now follow that with 2k primer.
V8covin said:
However as a repairer I've learnt the hard way, especially on front bumpers that are more prone to stone impact,adhesion promoter on it's own isn't enough.
I now follow that with 2k primer.
This.I now follow that with 2k primer.
I never trust the "primed and ready to paint" new panels and always prep and re-prime them with a quality, proven primer.
If it is smooth and shiny underneath, it hasn't been keyed anyway, so the paint was never going to stay stuck for long.....
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