Water mark help!

[Guy]

the car didn't have lacquer on it

it only appeared on the bonnet when i saw it

the train car park car would have had a lot of iron filings fallout on it too... time for a bit of stinky iron x 

[Horney]

Thom, MX5 is single stage so no lacquer.

I cut pack the bonnet with wet and dry last weekend and then sprayed it with 3 coats of halfords rattle can lacquer. It looks sh!t but should be OK once I've cut back the runs and polished it up.

Problem is I didn't manage to sand out all the marks as they were hard to see once I'd sanded the shine off and they're now sealed under hte lacquer. Doh!

Looking likely the car will be getting a fresh coat of paint in the new year.

Nick

[Thom89]

Sorry, I thought the car was Metallic green...
It'll more than likely be one of the pigments that is breaking down, in the similar in the way that Tornado red breaks down.

From recollection, the Mazda should still be a basecoat solid colour!

Thom

[Horney]

I've had cars that fade before but not ones that fade in perfect water droplet shapes and to such a depth in the paint. Very odd. TO remove them I had to do 10+ passes with 1600Grit wet and dry!

nick

[Dan J]

A good sealant would of prevented this from coming back imo

[Horney]

Guy did seal it with Jetseal and then waxed it. 3 washes later (Used Bilt hamber shampoo) and it came back.

Nick

[Guy]

A good sealant would of prevented this from coming back imo

2 coats of jetseal 109 and 2 coats of wax... should have stopped this

i'm flummoxed myself 

[Dan J]

A good sealant would of prevented this from coming back imo

2 coats of jetseal 109 and 2 coats of wax... should have stopped this

i'm flummoxed myself 

i find Fk1000p,G-tech C1 perform better personally, i think in this case jetseal isnt strong enough for the situation.

[Thom89]

I would say that pigments are breaking down to the point of no return! the more it now gets polished, the shorter the period of time before the spots return, damage would have been done by raindrops magnifying UV deep into the pigments causing one of them to break down, Its possible Nick, that what you're seeing, maybe damage that was "polished out" before you bought the car, making an unwanted return! a quality sealer, and a good waxing, may put it to bed, but only for a short while... eventually, I would expect the panel to turn White

Thom