How do you refresh a windshield?

[DWR]

I remember reading on a board sometime ago a method for refreshing and old plastic windshield. I am rebuilding an older model and would like to freshen up the windshield after I lay the new paint job.

[charlie8575]

Another product that works well I found is....toothpaste. Just polish the glass with it until it shines up. I found it worked very well with a window unit out of an SMP 1960 Valiant with a couple of bad, but shallow scratches and was just hazy.

Charlie Larkin

[BMW Fanboi]

i've fixed a few with some sanding

1. sand with 400 (dry)

2. sand with 600 (dry)

3. sand with 1000 (wet)

4. sand with 200 (wet)

5. polish with "3M super duty rubbing compound" (or other semi aggressive compound)

6. polish with "3M Perfect It machine polish" (or other fine polish) (the more you rub the finner it will be)

heres an finished product from a lamborghini merc im restoring:

before it had glue lumps, scracthes, etc on it

remember, even marks on the inside will show through!

Edited December 10, 2010 by BMW Fanboi

[Agent G]

Ditto all the above plus one caveat.

I've found that polishing plastic with Novus is a good method, but in my experience Future is repelled by the Novus. I wash the freshly polished part before applying Future.

Just my two cents.

G

[DWR]

Thank you..toothpaste was the one I had read about somewhere before. I tied that last night and the windshield is perfect.

[MikeMc]

i've fixed a few with some sanding

1. sand with 400 (wet)

2. sand with 600 (wet)

3. sand with 1000 (wet)

4. sand with 2000 (wet)

5. polish with "3M super duty rubbing compound" (or other semi aggressive compound)

6. polish with "3M Perfect It machine polish" (or other fine polish) (the more you rub the finner it will be)

heres an finished product from a lamborghini merc im restoring:

before it had glue lumps, scracthes, etc on it

remember, even marks on the inside will show through!

I edited the 200 to 2000.....Micro mesh pads and novus 2 will restore it..... soapy water will work the best

Edited December 11, 2010 by Stasch

[Southern Fried]

Meguiars Mirror Glaze #10. The grey bottle. It's clear plastic polish. Sold at automotive parts stores. Old watch repair Dude around here swears by it.