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Thread: Help - Glueing plastic in Rover A/C

  1. #1
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    Help - Glueing plastic in Rover A/C

    HI Folks,
    I need to cut some of my air con ducts and A/C fan shroud to get them to fit as part of getting enough clearance around the passenger side cylinder head with the engine conversion i am doing. I was thinking of cutting the A/C shroud to make it smaller and then welding it back together. Local harware stores sell the $20-$50 glue guns but will these pull apart straight away or do i need to buy one of the more industrial ones that you can push the filler rod in? I have only seen guys do welding on poly pipe so a bit stumped. Anyone got any ideas? I was looking at a Leister glue gun but is this overkill or would the local $20-$50 special be sufficient?


    Thanks in Advance
    Gaz

  2. #2
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    I've used Q-Bond for plastic repairs and found it to be strong. There's a powder and some superglue that bond it all together. Bursons have it for under $30. A fan broke and split the shroud on a RRC once. I drilled and stitched the shroud with cable ties as an interim repair and then glued it with the Q-Bond. The repair was still good 8 years later when I sold the car.

  3. #3
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    I also have just used Q bond ($25 at the hardware store) and seems OK - expensive for what it is - superglue with either aluminium or ferrous powder but it does work.

    Also loctite does a Superglue for plastic - is two part - the first is a plastic primer and the second it the super glue - works well.

    I used both yesterday to glue some broken clips on my RRS - glued the broken plastic clips back with the Loctite product and then reinforced it all with the Q bond - cheaper than buying new clips that will break again and now the clips should be stronger than new now.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  4. #4
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    Q-Bond.

    Usually around $25 to $30. Well worth it. - Works brilliantly, especially on plastics that can't be glued with 'normal' Supa-Glue....

    - You get what you pay for in 'Super-Glues'.

  5. #5
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    Q-Bond is the go!

    Thanks Guys,
    I might try some Q-Bond s per prevoius posts.


    Thanks for your help lads.


    Cheers,
    Gaz

  6. #6
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    I need to cut some of my air con ducts and A/C fan shroud to get them to fit as part of getting enough clearance around the passenger side cylinder head with the engine conversion i am doing. I was thinking of cutting the A/C shroud to make it smaller and then welding it back together.
    You could also try actual plastic welding by use of a heat gun and zip ties as the welding rod.
    I tried it on a worn through HDPE water tank but because the plastic was wafer thin I replaced a 1MM hole with a 20MM hole. However it should be possible with some practice.
    Another alternative is take the modified duct to a motorcycle fairing welder who is very experienced in doing plastic welding.
    I do NOT think I would trust superglue for the long run.
    Regards Philip A
    Last edited by PhilipA; 10th April 2011 at 06:47 PM. Reason: correction

  7. #7
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    .. Makes sense... bikes are constantly falling over... or we're bowling them. - so bike 'fix-its' would be pretty experienced !

    Must try the plastic ties & heat gun for when my petrol tank leaks... again.
    - Any particular brand of ties ? (has got me interested!)

    Cheers,

    James

  8. #8
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    Glue gun

    PhilipA
    You could also try actual plastic welding by use of a heat gun and zip ties as the welding rod.
    I tried it on a worn through HDPE water tank but because the plastic was wafer thin I replaced a 1MM hole with a 20MM hole. However it should be possible with some practice.
    Another alternative is take the modified duct to a motorcycle fairing welder who is very experienced in doing plastic welding.
    I do NOT think I would trust superglue for the long run.
    Regards Philip A
    Might give that a go to. I,ve cut my chevy fuse box base down so have a bit of plastic spare that i have not thrown out. Im 600 k's from closest welder so might give it a go my self!

    Thanks
    Gaz

  9. #9
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    Quote Originally Posted by PhilipA View Post
    You could also try actual plastic welding by use of a heat gun and zip ties as the welding rod.
    I find an old soldering iron works really well.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  10. #10
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    I find an old soldering iron works really well.
    Yes , I managed to stitch together a split wheelie bin by just running an electric iron across and along the split several times.
    It held well until the council replaced it.
    But that was before I knew about the zip ties and heat gun, and it adds extra material .
    Regards Philip A

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