How do you remove three paint systems from a plastic bumper

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PostPosted: Thu Feb 12, 2015 12:32 am
Gentlemen,

I have a rare plastic bumper with three paint systems on it, . Each paint system on the bumper is a primer, base-coat, and clearcoat.

Sand blast the stuff off?

Chemical peel? Which chemicals?

Sand it off? What grit?

Any Ideas?

Martin



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PostPosted: Thu Feb 12, 2015 2:20 am
If you can get it soda blasted great that would be best or even glass would be ok.
Hand sanding gonna take forever at least in my case.
Stripper is bad news and I don't use it for anything even if it does say plastic safe.

There is a company that does provide a service that does strip it all back down and does all necessary repairs and preps for paint I was gonna let them redo a set for a TA for me and see how it comes out. they claim there HOT dip tank softens 30+ year old plastic/rubber to like new condition they claim the hot dip process rejuvenates the old rubber.

Guys talking about them and work done by them, you may have to join sight to see thread.
http://transamcountry.com/community/ind ... #msg640735
Company
http://www.lkqcorp.com/us/en/default.aspx
I have not used them yet but I did call them locally in vegas was hard finding a guy who knew that they did old car parts service such as bumper refurbishment and wheels like the old Honey combs on Pontiac's but they do! He said they would have to ship them to another store for the work.
Price of service and shipping was fine with me as I recall especially for professionally restored 30+ year old parts .

Every thing you ever wanted to know or were afraid to ask about plastic and rubber bumpers and more!
http://www.urethanesupply.com/
Good note to make Urethanesupply doesn't speak about any sort of dip or stripping!!! food for thought!
Dennis B.
A&P Mechanic, FCC General radio Telephone Operator
Line Maintenance A&P Mechanic and MOC Tech specialist.



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PostPosted: Fri Feb 13, 2015 9:13 am
DA with 180 works good. You can start with 80 but don't run over the same spot for too long and get it hot.



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PostPosted: Tue Feb 17, 2015 11:01 am
It depends how quickly you want to get done.

If you have a sander, it will make it easier.

I sanded down my entire rear bumper with 3M pad and p220 wet. it took about 3.5 hours but it was worth the money savings and time.
After 220, do 320 and 400 and should be good to go. The hardest and most time consuming part is getting everything off with 220. I was afraid to go any more course then that, so the plastic does not gouges.

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PostPosted: Wed Feb 25, 2015 11:19 pm
Gentlemen,

Thank you for your replies...

I like that service of removing the all the old layers of paint, but removing by hand will be "A labor of love" for doing it with sandpaper. I will try the paper at first.

Funny thing is I am in Vegas now. I may just entertain that service.

Thank you again!

Martin

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