Repairing ABS parts... - RCCanada - Canada Radio Controlled Hobby Forum
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Old 04-13-2005, 11:41 PM   #1
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Repairing ABS parts...

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Something that I experimented with this afternoon, that turned out rather well, so I thought I would share it..

The subject is an ABS wheel fairing from a Citabria. It had got torn off the landing gear and some of the pieces were missing. (the white area is where I sanded the black paint off the ABS) The one photo shows the jigsaw puzzle of putting the salvaged pieces back together The big large piece was missing and was cut out of a drain pipe (Scrap from my Spad) after tracing it out from the hole. A dremel tool and snips were used to more or less match the contour of the hole. Ca holds everything together.
To strengthen this, I glued a larger flat piece of drain pipe material on the inside of the wheel pant.

The other photo shows the bottom of the wheel fairing is curved inwards towards the wheel. Careful use of the hot air gun softend the patch material up so that it could follow the contour of the bottom edge. it was CA'ed and clamped. After it everything was dried, the excess was trimmed off with the dremel, and sanded. The extra thickness of ABS has made it incredibly strong now. A little filler, and it is ready to be repainted and installed back on the aircraft...
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Old 04-14-2005, 12:39 AM   #2
Claude Paradis
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Good tips.

Another is that I have used Acetone successfully to "weld" abs parts together as opposed to using CA. Have done this for assembling kit parts as well as similar repairs to what you have done with your wheel pant. Typically on cowls. The weld seems to be alot stronger and hold alot longer than CA. The CA is a little stiffer than the ABS and tends to crack away at or next to the glued joint(s).

Nice repair job. Looks good and tough now.
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Old 04-14-2005, 03:03 PM   #3
Gary Maker
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Looks good Nony

Another product that works exceptionally well for this and other types of plastic is a product called "Resonbond" It actually slightly soften the edges and allows the material to totally weld itself together and when it dries your left with a perfectly repaired part. Just another thought!
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Old 04-14-2005, 03:57 PM   #4
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Thanks guys.. I didn't espect things to turn out as well as they did, otherwise I would have taken some before shots so you would see what little I had to work with....

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