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post #1 of (permalink) Old 06-12-2009, 07:46 AM Thread Starter
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Center console

i have a console for a 1985 CJ Jeep and the cup holders have cracks in them has anyone or any suggestions on how i could repair the cracks to make it water proof ? Thanks

sorry picture so small
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post #2 of (permalink) Old 06-12-2009, 09:28 AM
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Do the cup holders come out, or are they a molded-in part of the lid? What caused them to crack?

Most of those things are molded thermo-plastic. You can make a strip of filler rod by slicing it off someplace where it won't be missed. Then work it in with a soldering iron. Get both sides of the crack warm enough to kind of stir them together, and then add the filler. Smooth it over with the side of the iron. If you're good, you can make a pretty decent water-tight repair.

Or cut them out and replace them with plastic cups from the dollar store.

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post #3 of (permalink) Old 06-12-2009, 09:38 AM Thread Starter
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thanks molded in the lid not sure why they are cracked

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post #4 of (permalink) Old 06-12-2009, 09:44 AM Thread Starter
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could i maybe get fiberglass repair and paint the inside witha good paint ?

Here is a better picture of a good one the inside of cup holder is what is cracked on mine bottom of cup holders.
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post #5 of (permalink) Old 06-12-2009, 10:26 AM
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The plastics that most of those things are made from are a type of polypropylene, closely related to milk jugs. It has a waxy feel and is darn near impossible for any adhesive to bond to securely. There are thermal glues that do a moderately good job, but they're not what you find at the hardware store. 3M makes the one I've used. I contacted an engineer via their website and got them to send me a sample. I've never found any other adhesive that works well.

If you wrap the whole underside in fiberglass and provide a means for it to mechanically attach, like drilling holes in the sides of the cups, you can get it to hold, but eventually water will get between the cup and the fiberglass and cause mold.

Probably the best repair would be to find replacement cups with a big rim, like the plastic cups that come in some can coolies. Then cut the cup out of the lid so the replacement is a snug fit. Put a bead of silicone caulk around the mating surfaces and press the replacements in. With a tight fit the caulk will adhere well enough to prevent leaks.

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post #6 of (permalink) Old 06-12-2009, 10:55 AM
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Try this stuff.




Plastruct Plastic Weld

I had a hard time finding it on the 'net, I was leaving the “c” out of the name Plastruct in my Google search.

You can find it at hobby stores especially those that sell model railroad.

Hype says:
A colorless, liquid, plastic-fusing adhesive. Dissolves a thin layer of each surface to form a welded joint as strong as the surrounding area. Bonds styrene, ABS, butrate and acrylics.


I’ve used it successfully on a lot of plastics where nothing else worked.

Make repeated applications. Get the crack filled and then spread it out on the back side getting wider and wider each time.

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post #7 of (permalink) Old 06-12-2009, 02:58 PM
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Quote:
Bonds styrene, ABS, butrate and acrylics
It probably won't work, but it won't hurt to try. Put a drop somewhere that won't show and let it soak in for a minute or so. Wipe it off before it dries. If the color of the base plastic transfers to the wiping cloth, and it leaves behind a blemish, it should bond. If it wipes off cleanly, it won't bond.

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post #8 of (permalink) Old 06-14-2009, 12:20 AM
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Hey....isn't that the stock center console? If so, I bet you could get good money selling it to the Smithsonian........

I would go aftermarket....main reason...you end up with an arm rest.....

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post #9 of (permalink) Old 06-14-2009, 07:08 PM
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I had a hole in mine and my brother patched it up with fiberglass. I won't see it for at least a week but I could take a picture of it after Scout camp this week.

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post #10 of (permalink) Old 07-11-2009, 09:17 AM
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I have the original one out of my '83 CJ7 that you can have for the cost of shipping. It does have a crack in the lid where one of the rivets hold the hinge to it, but the cup holder area isn't cracked. This might be an easier fix.

Send me an e-mail at [email protected] as I don't come around here much anymore since selling my Jeep.

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