Plastic Question

[JMiller]

What grit should I use to refinish my plastic gas tank?

[CHAINSAW]

start with about 250 if you have deep scratches... work your way up to 400, 600, 1000, then I usually finish with 2000 grit.

[JMiller]

thanks

[Yamahammer490]

I recently had good luck replacing the last few finest grades of sand paper with a mixture of rottenstone and paraffin oil during the process. You can get these at most wood working stores.

Basically you make a loose paste out of the rottenstone and paraffin oil and then rub with a rag. It seems to make the pastic real shiny and smooth.

[CHAINSAW]

is rottenstone the name of the product?? It would be nice to get outta 30 minutes of sanding if I can just buff it with some stuff on a rag.. lol

[Yamahammer490]

Yes, the product is called "Rottenstone" and is by a company called "Masters" or something similar.

Here's a link to Woodcraft's web site: http://shop.woodcraft.com/Woodcraft/product_family.asp?family%5Fid=7246&gift=False&mscssid=057B6ADF0D7C84C3DAE3A53D41802DFD

I don't think it is any faster than sandpaper but it is easier because it allows you to follow the contours better. Sandpaper always rips when you try to do goofy contours.

I used the finest grade for the finish polish and it looks pretty good.

[kilabeez0]

when i sanded my headlight shroud with 1600 it dulled it and now it looks like crap. i dont know how u guys do it

[CHAINSAW]

dont just sand dry if you are.. wet sand it. Once you are done wet sanding, you have to go over it with a buffing compound. You can get it at automotive stores like napa. I use a medium compound to buff it, err used to till I found plastic renew.

[kilabeez0]

i did wetsand. didn't buff though :?