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Thread: Old glazing sealant... Identity sought!

  1. 20th August 2012, 08:25 PM #1
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    davros
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    Question Old glazing sealant... Identity sought!

    Hi All,
    Seeking the name of the type of sealant used in the door tops of a Series 3 1974 Landy. It is tar-like and softens on a hot day. I've seen it before on vintage cars like my Austin Champ. It's not polyurethane and you can squish it around still after nearly 40 years! What is it and can you still get it?
    Cheers,
    Dave

    PS realise there may be a modern alternative by I'm still intrigued by the ID of the old stuff and I'm one of those nuts that would probably buy original cross-ply tyres with bar-grip if I could!
    1974 Military Lightweight Landy --- Some dementia at 50 years old
    2000 Disco series 2 now sadly moved on!
    No5 Trailer joined the fold... Awaiting graduation to road licensed!
    2021 Mazda BT50 or is that DMax?
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  2. 20th August 2012, 08:40 PM #2
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    Should be Butyl rubber / Butyl Mastic. Still made by Selleys.
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  3. 20th August 2012, 09:13 PM #3
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    davros
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    Cheers Langy,
    They suspected this at my local hardware but didn't have any. Thanks for the confirmation. I'll have to get some!
    Cheers,
    Dave
    1974 Military Lightweight Landy --- Some dementia at 50 years old
    2000 Disco series 2 now sadly moved on!
    No5 Trailer joined the fold... Awaiting graduation to road licensed!
    2021 Mazda BT50 or is that DMax?
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  4. 20th August 2012, 09:49 PM #4
    Davo
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    I haven't looked in a manual, but I think it was called "Dum Dum". A list of modern equivalents lists 3M brand weather-strip caulk.
    At any given point in time, somewhere in the world someone is working on a Land-Rover.
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  5. 21st August 2012, 08:01 AM #5
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    Davo

    You are correct, it's called . I used to get mine from the Series 2 90/110 Owners club. Not sure if they still sell it.

    Ivan
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  6. 21st August 2012, 04:26 PM #6
    Davo
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    I did a quick search last night and someone on another forum said that they stopped making it last year. Which wouldn't surprise me.
    At any given point in time, somewhere in the world someone is working on a Land-Rover.
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  7. 22nd August 2012, 08:03 PM #7
    zwitter
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    Still available
    Search flea bay for butyl tape.
    Bought some recently posted about it here. Works well to seal Landys

    3M do not stock it in Oz and min order was $1300

    James
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  8. 22nd August 2012, 08:07 PM #8
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    Quote Originally Posted by zwitter View Post
    Still available
    Search flea bay for butyl tape.
    Bought some recently posted about it here. Works well to seal Landys

    3M do not stock it in Oz and min order was $1300

    James
    Sent from my iPad using Tapatalk HD
    That'd be right, patent expired technology and lasts for 40 years. No profit in that so they won't stock it!

    You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
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  9. 30th August 2012, 07:12 PM #9
    30t of coolness
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    Could you tell me if its the same stuff used around the windscreen glass as I have to replace one, or could I get away with double sided tape?
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  10. 2nd September 2012, 07:03 PM #10
    zwitter
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    I would not think so. Not on any recent car anyway. BUT!!! Check this item on fleabay
    110893355784 it is correctbtape but says for windscreen. But would e for older car

    Modern cars the windscreen is structural and is glued in.

    This Dum-Dum or butyl tape, butyl mastic is like a black rubbery putty. It can be run along seams to seal them or pressed into places to form a seal.

    I would not glue anything with it as it remains soft and flexible, particularly in hot weather.

    James


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