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  • How do i polish the edges of perspex (plexi glass)

    Posted by DaneRead on 21 August 2008 at 08:35

    Hi I have a piece of 8mm perspex (acrylic)

    I am doing a sample sign and i want to polish the edges.

    the size is 200mm x 100mm
    how do you polish the edges to give the shinny look

    Rodney Gold replied 17 years, 1 month ago 6 Members · 8 Replies
  • 8 Replies
  • David Rogers

    Member
    21 August 2008 at 10:55

    http://www.uksignboards.com/viewtopic.p … ame+polish

    discussed here.

  • Steve Underhill

    Member
    21 August 2008 at 12:42

    I sand it to get rid of saw marks, or scrape with a Stanley blade, be careful not to slip off and scratch the surface, then I get some brasso, or T cut etc and rub with a cloth till almost clear, then finally to get rid of the last few blemishes I flame polish it using a gas torch, (not a proper flame polisher)
    even though obviously these are the best tool for the job I never have any problems with the old bernzomatic

  • Tim Painter

    Member
    21 August 2008 at 13:00

    Do you do a nice Crème brûlée aswell Steve? :lol1:

  • Steve Underhill

    Member
    21 August 2008 at 13:25

    I do make those yes,
    they don’t taste very good but the edges are nice and smooth. :lol1:

  • DaneRead

    Member
    21 August 2008 at 13:27

    THANKS GUYS I WILL TRY AND GET BACK TO YOU

  • Jason Davies

    Member
    21 August 2008 at 16:56

    You can also warm it up with a torch, just be careful, good finish though.

    Jason

  • DaneRead

    Member
    21 August 2008 at 17:18

    hi will the brasso give the chemical reacation when you clean with meths.

    Or is it only the flame.

  • Rodney Gold

    Member
    22 August 2008 at 07:21

    Cleaning with meths is a NONO………….
    Pex gets stressed when cut or subjected to any heat process like laser cutting or flame polishing. MOST solvents will result in some stress cracking if used near or on the stressed pex.
    Problem is , often the stress cracks do not appear instantly but some time down the line.
    Clean pex with warm soapy water , NOT with any solvents.
    We polish the edges of 25mm pex slabs by scraping and then using a very fine water paper on a disc sander and either buffing with a HARD mop on the buff (not those flappy floppy buff wheels , but a HARD one) using very fine tripoli or just use brasso.

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