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Thread: torching acrylic edges?

  1. #1
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    torching acrylic edges?

    Don't ask me why, but last night I was watching 'Unique Whips' and they are doing this install in an Escalade - looked like 2 JL subs in a fiberglass box, with 2 JL amps mounted on top. Anyways, they were also putting in some acrylic and hooking up some leds to give it that 'glow' look. So I see the guy with a butane torch torching the edges of the acrylic. I know that there is a method of 'flame polishing' the edges of acrylic, but I didn't think it could be as easy as taking a butane torch to. Anyone know anything about this, or done it before?

  2. #2
    Maximum Bitrate Altimat's Avatar
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    No, but thanks for the info!
    Fabricator

  3. #3
    FLAC evandude's Avatar
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    Sounds like an interesting idea... could work, but i wouldn't believe it until I saw it. Anyone got any acrylic and a torch handy to try it out on?
    But don't take it from me! here's a quote from a real, live newbie:
    Quote Originally Posted by Viscouse
    I am learning buttloads just by searching on this forum. I've learned 2 big things so far: 1-it's been done before, and 2-if it hasn't, there is a way to do it.
    eegeek.net

  4. #4
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    well after some more 'ing - I found that it is best to have a 'clean' flame - with more oxygen in it.

    heres a good link:
    http://www.bayplastics.co.uk/product...ch(polish).htm

    When I get a chance, I think I will bust out the torch and give it a try

  5. #5
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    Quote Originally Posted by evandude
    Sounds like an interesting idea... could work, but i wouldn't believe it until I saw it. Anyone got any acrylic and a torch handy to try it out on?
    well flame polishing is a professional way of polishing acrylic, but from what I have been previously told, the proper tools were cost prohibitive to everyone except professionals - so I pretty much had my mind set on sand paper and cream polishing compounds. But if a simple tourch will do the same thing as the expensive tools, I'm willing to drop $30 at Home Depot!

  6. #6
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    of course it works... lmao.. nobody ever done this before ??

  7. #7
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    I haven't - have you?

  8. #8
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    I work for an automotive interior company and we do a lot of prototypes for the automakers and for auto shows. When it comes to polishing acrylic or polycarbonate, we use a different method. There is a chemical called Rez-n-Bond that is specific for "gluing" together these types of materials. It actually melts the materials together. When this material is put into a tea kettle and heated into a steam, it can be used to polish by placing the areas you want to polish into the steam. Be careful, for one it polishes very quickly and it is a hazardous material that requires a respirator and is flammable. Anyway just thought I would mention it.

  9. #9
    Variable Bitrate SickVette's Avatar
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    Flame polishing does work but you have to be careful. It can cause the edge to roll if it gets too hot. I used to flame stuff and occassionally still do but my prefered method is sand and polish using a compund and a wheel. The finished product is alot better then with a flame but takes alot more time.

    I am going to have check into Rez-n_Bond....sounds really cool.

  10. #10
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    SickVette - can you provide some more details on your sanding method - i.e. what grits, what compounds work? I don't have access to a wheel, but would you think that a dremel would work?

    That Rez-n-Bond stuff sounds cool, but I think I would prefer to either torch or sand...

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