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Thread: plastic help!

  1. #1
    Join Date
    Mar 2004
    Location
    Fond du lac,WI
    --
    658

    plastic help!

    the side of my fender is cracked how can i fix it. but cant be too costly

  2. #2
    Join Date
    Mar 2004
    Location
    Gettysburg PA
    --
    498
    if you just want it to stay on and dont mind apearance a lot of ppl just use zip ties

  3. #3
    yea..you can get coloured zip ties now so it dosnt look to bad....
    84 Honda Big Red w/plow
    85 Honda 200X
    88 Honda CR 125
    86 350x(in process of building)
    :trikesown :Beerchug :trikesown

  4. #4
    Join Date
    Jul 2004
    Location
    minnesota
    --
    689
    yep, I use zip ties on alot of my fenders but once i did platic weld a front fender heres how I did it: first i found an old peice of plasic and just set it in the inside of the fender(off the trike) where the crack was and just took the blow torch to the platic and it melted right into the crack and the rest off it that ended up coming threw the outside of the fender i just took the grinder and grinded the rest of the plastic off that i didnt need.
    my trikes:
    1983 honda atc 200x-k&n filter
    2002 yamaha raptor 660r, yoshimura slip on, prm grab bars
    1978 chevy nova, 454 v8, bds blower, 150hp shot of nitrous, full roll cage, a real power house.
    1991 chevy s10 4x4 350v8.
    1986 250sx
    YES its fast NO you cant ride it.

  5. #5
    Join Date
    Oct 2004
    Location
    Opelousas, Louisiana
    --
    1,337
    Get a old screwdriver and cut it down so the end is round. Heat it up and push it against the plastic (while pushing the crack back together) let it melt together and kind of do like you are welding. It kind of leaves like a bead looking thing. Once you get it all melted together just mix some epoxy and coat the whole crack. Oh yeah you might want to do the top and bottom of the crack for more strength. (just try not melt through)
    If you have a hole or a missing piece you can just cut a piece of plastic off some old fenders and "weld" it in.
    1986 350X K&N filter, DG Krome Power exhaust
    1982 110 UNI filter, Cobra megaphone exhaust

    1982 honda 110 exhaust for sale, PM me.

  6. #6
    Join Date
    Mar 2003
    Location
    Australia
    --
    1,919
    Use an old soldering iron and weld it together. This is an easy fix but wont last all that long, whoever said to coat it with an epoxy after is a genuis, that is probably a good idea. Give it a go and let us know how it turns out. Goodluck.

    Matt
    1980 ATC 70 Needs Restoration
    1985 ATC 250es Fully Refurbed
    1986 ATC 350x Mint Original

  7. #7
    1985 200s is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Aug 2003
    Location
    Olean, NY
    --
    335
    Unfortunatley no epoxy known to man will stick to this type plastic. The ONLY way to mend it is plastic welding. I did the soldering iron thing and it worked a little while but broke. There is a specific temperature needed to adhere the plastics back together. Get it to hot and it will become brittle. The plastic is polyethlene and should be welded at 575 degrees fahrenheight. Useing an old piece of fender, heat gun and soldering iron, I experimented with an old fender and got so so results. The key as I see it is haveing fender and filler both at 575 degrees to get proper adhesion and strength.

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