Clay on glass?

[capnp72]

Is it ok to use clay or a decon mitt on glass? It's the easiest way I've found to remove hard water spots. Does this damage or remove any coating or anything on the glass? Thank you.

[MisterSnoop]

yeah. I have the Griot's glass cleaning clay that I use on my windshield.

[Tasmania]

Most synthetic clay mitts and blocks they recommend breaking it in on glass,
I would dare say the coating might be affected just re apply but you will give the glass a good clean.

[Big Dave]

I remember the first clay mitt I bought years ago, the instructions said to use it on glass before using it on paint, to prevent/reduce marring on the paint.

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[capnp72]

Most synthetic clay mitts and blocks they recommend breaking it in on glass,
I would dare say the coating might be affected just re apply but you will give the glass a good clean.

I was referring to a UV coating or other coating that may have been applied when the glass was made.

[Eldorado2k]

I was referring to a UV coating or other coating that may have been applied when the glass was made.

That UV coating is actually sandwiched in between the glass… Impossible for you to touch it.

[Tasmania]

I was referring to a UV coating or other coating that may have been applied when the glass was made.

Never heard of any UV coating added to glass from factory.

[Desertnate]

I've never had an issues with either a clay mitt or clay bar on glass. I've had to use them a few times over the years to remove stubborn bug splatters that couldn't be removed with chemicals.

[kb2ehj]

Link that talks about UV protection in auto glass. You can also google it for more confirmation.

Does my windshield protect me from the sun? - The Globe and Mail