How should I go about removing this water stain on paint?

[Shakedown Street]

This will be my first post in the forum. :xyxthumbs:

A sunshield was left on the hood of my truck overnight well it rained, and was allowed to bake in the sun with water trapped underneath. It left this large rectangle that I have had no luck removing with any clay or spray. This could be a good excuse to get myself a good orbital polisher, does it look like it needs a wet sand?

It's an '86 Dodge Ram, original paint and faded so single stage.

 

[detailsbydennis]

Trapped moisture in paint. Try a hairdryer


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[Buster906]

Mineral DEPOSIT REMOVER or MDR made by Optimum Polymer Technologies

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[GSKR]

This will be my first post in the forum. :xyxthumbs:

A sunshield was left on the hood of my truck overnight well it rained, and was allowed to bake in the sun with water trapped underneath. It left this large rectangle that I have had no luck removing with any clay or spray. This could be a good excuse to get myself a good orbital polisher, does it look like it needs a wet sand?

It's an '86 Dodge Ram, original paint and faded so single stage.

Usually on good paint a quality compound may take care of that.That paint looks old and i would not wetland under 5000 grit.Run a heat gun over that area first.

 

[JKDesign]

Trapped moisture- run a heat gun or hair dryer over the affected area

 

[Shakedown Street]

I'll try the heat gun, thanks!

 

[LSNAutoDetailingLSNAutoDetailing is verified member.]

That truck looks like it could use a good #7 bath. Then follow up with a light cleaner/wax like McKee's 360 by machine.