JoeTaylor

Hi Everyone,

For the lack of new Wheeler Dealer episodes on Comcast cable, I found some newer programs on YouTube. While watching one one the BMW 840 buy/fix, Ed China showed a technique for repairing an '80's era plastic bumper which I thought was interesting.

I thought this might apply to our 928 front and back bumpers, have a look:

The "guts" of the repair is here at the beginning of this episode, "Wheeler Dealers - BMW 840 - 2/3":


The run up to the actual repair is at the end of this episode, "Wheeler Dealers - BMW 840 - 1/3"


Joe

Jerry Feather

It would be interesting to know what the two-part resin is that he used for the rapairs and what kind of plastic he used for the backing. Any ideas?

Jerry Feather

rexpontius

I think it is this product from 3M

http://multimedia.3m.com/mws/mediawe...6EVs6E666666--

Cheers
Michel

rexpontius

Or maybe this product: http://www.lord.com/Products-And-Sol...roduct.xml/314

Checkout the videos where they fix a broken off bumper tab.

JHowell37

Several companies make products for repairing cracks and other damage to plastic bumpers. His method for doing that repair was interesting.

I watched the whole episode. One thing I couldn't understand is why they used a powdercoat primer on the wheels and put paint on top. Why not powdercoat them in the color they had planned to paint them?

Rob Edwards

I bought this kit a while back to try to fix a split in my front spoiler, but haven't had the time/courage to try it:


Still can't figure out exactly what plastic the S4 front spoilers are made of, though the kit contains their fiberflex universal welding rod which should work. But after the repair itself, then there's the question of the cosmetic repair to the surface of the plastic. Need to look more closely at http://www.urethanesupply.com/ 's refinishing products.

Jerry Feather

Look at the thread I started some time ago about the bumperette delete and you can see how it is really done. Actually not to differently from the guy in the video.

Somebody told me how to post a link some time ago, but I never tried it; and now I can't remember how.

I searched the tread last night to show a friend, so it is not hard to find. Again, Bumperette delete!

Jerry Feather

Richter12x2

Cost probably - powdercoating is great, but the finish is kinda flat by default, unless you powdercoat a clear on top of it.

Plus if you're trying to match a specific color, your powdercoater had better be pretty good.

FWIW, I had pretty good success with deformed plastic bumpers by clamping them in the shape I wanted, then using a propane torch to take the stress out. My rear bumper had a shock compress that forced the plastic out of whack, but the propane torch improved it quite a bit.