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Polishing plexiglass windshield

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zwoobah View Drop Down
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    Posted: October-09-2019 at 7:42pm
The plexi windshield on my Mustang is likely original. It's structurally fine but has gotten cloudy.

Over the summer I polished it several times with Meguiar's PlastX. This brought it back to an acceptable level of clarity, but after sitting for a few weeks (either in the sun or under a cover) the windshield would cloud up again. Another round of polish would bring it back to serviceable.

Any suggestions on a polish or sealant that will keep it clear? At the moment I can't see through it at all if driving toward the sun. I could order a new windshield from UPD but I'd rather not spend the money. I'm tempted to spray it with a UV-stable automotive clear coat. I've done this on headlights after wet sanding and it works to keep them clear for years.
1968 Mustang 16 - 351W powered
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8122pbrainard View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: October-09-2019 at 9:47pm
Chris,
Did you polish by hand or use a buffer? By hand you don't cut deep enough.


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64 X55 Dunphy

Keep it original, Pete
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zwoobah View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zwoobah Quote  Post ReplyReply Direct Link To This Post Posted: October-10-2019 at 3:44pm
Just by hand. I'll try the buffer before I shrink wrap the boat for the winter. Even by hand I could see the oxidized layer coming off on the wax pad.
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