New black paint gone "milky"
Discussion
A couple of weeks ago I got my black mondeo back from the bodyshop after an accident repair (new door and respray). All appeared good.
Washing the car at the weekend and the new paint has turned patchy and has a milky haze.
Called the bodyshop who are collecting the car to inspect / rectify. They said I wasn't the first to complain of this and they are hauling in the paint manufacturer next week. They say it's due to modern water based paints and also possibly the weather (I drove home in the rain, car is parked outside and have probably driven 600 miles in the intervening period). The body shop are a large outfit, VBRA certified so not a cack handed back street place.
The bodyshop seem decent and they are trying hard to sort this out but I was more interested in why this happened.
Washing the car at the weekend and the new paint has turned patchy and has a milky haze.
Called the bodyshop who are collecting the car to inspect / rectify. They said I wasn't the first to complain of this and they are hauling in the paint manufacturer next week. They say it's due to modern water based paints and also possibly the weather (I drove home in the rain, car is parked outside and have probably driven 600 miles in the intervening period). The body shop are a large outfit, VBRA certified so not a cack handed back street place.
The bodyshop seem decent and they are trying hard to sort this out but I was more interested in why this happened.
Sounds very like moisture bloom.
The incompletely-cured clearcoat absorbs humidity, and this is the result. Provided it's done in time (before the clear completely sets, trapping the moisture permanently) thoroughly baking the repair usually drives the moisture out and sorts the problem without rework.
Blaming waterborne paint is very likely to be an attempt to mislead you - tread carefully around any shop using this line.
HTH
Tol
The incompletely-cured clearcoat absorbs humidity, and this is the result. Provided it's done in time (before the clear completely sets, trapping the moisture permanently) thoroughly baking the repair usually drives the moisture out and sorts the problem without rework.
Blaming waterborne paint is very likely to be an attempt to mislead you - tread carefully around any shop using this line.
HTH
Tol
Blooming is a reasonably common problem with clearcoats and laquers. In short, the laquer has trapped some moisture as it hardens. With solvent based paints it usually occurs when the weather is damp and a panel is not heated sufficiently after painting and laquering. With modern water based paints, it can happen if the basecoat isn't dried completely before laquering.
It may be worth your while trying to gently heat the affected area with a heat gun or a space heater. Quite often this is all that's needed to drive out the moisture. Just be sure not to concentrate too much heat in one place, and if it doesn't seem to make a difference within a couple of minutes, stop and leave it for the bodyshop.
It may be worth your while trying to gently heat the affected area with a heat gun or a space heater. Quite often this is all that's needed to drive out the moisture. Just be sure not to concentrate too much heat in one place, and if it doesn't seem to make a difference within a couple of minutes, stop and leave it for the bodyshop.
Could be that they waxed the panels before the paint had hardened properly, i was told by my bodyshop not to wax for 4 weeks to make sure the paint was hard after they painted my bonnet black, polishing with a wax free product was fine, they said the wax gets absorbered into the paint causing it to go milky.
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