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  • Advice on ACM Board in Frame

  • Stuart Miller

    Member
    January 7, 2011 at 2:24 pm

    I am in the process of making up a framed sign with an ACM board insert.
    The sign is to be 3000mm x 1000mm so the ACM insert can be the maximum available in one piece.
    Will it be best to put a hanging strip onto the board for this or can I just slide the insert into the frame without?

    Also would I have any issues with this substrate being blown out of the frame?
    What criteria am I looking for when this may become an issue?

    Thanks guys in advance for your opinions.
    Stuart

  • Kevin Flowers

    Member
    January 7, 2011 at 7:49 pm

    Stuart
    what size frame are you using 6mm or 3mm composite frame, i always fit a hanging strip just for peace of mind

    Kev

  • Stuart Miller

    Member
    January 8, 2011 at 11:24 am

    Talking to and getting quotes from
    Novatrim
    Alutrade
    Kestrel.

    Size of frame to be advised I was looking originally at the Novatrim Composite Frame which has a front face of 35mm.

  • James Sahota

    Member
    January 8, 2011 at 7:41 pm

    Agree with Kev, put a hanging stripe on this…..

  • Robert Lambie

    Member
    January 8, 2011 at 10:40 pm

    as long as you are using a good frame you will be perfectly fine without strips.
    build your frame in one. build frame. compensate .5inch smaller all round panel. erect frame, slide in panel and sleep.

    composite panel is NOT the foamex type panels. i would say it is 100% impossible to flex and pop from a proper constructed frame.

    http://www.uksignboards.com/viewtopic.p … t=panatrim

  • Kevin Flowers

    Member
    January 8, 2011 at 11:52 pm

    Rob
    we use strips because it stops the board fouling on corner brackets & screws etc, knock in corners are approx 45mm long. Although you can get past the problems a strip just makes it easier. We cut the strips on our own wall saw but all suppliers will cut the strips for you.

  • Peter Normington

    Member
    January 9, 2011 at 12:03 am
    quote Kevin Flowers:

    Rob
    we use strips because it stops the board fouling on corner brackets & screws etc, knock in corners are approx 45mm long. Although you can get past the problems a strip just makes it easier. We cut the strips on our own wall saw but all suppliers will cut the strips for you.

    Not sure what you mean Kev,
    but if you are worried about it snagging on the screws, or brackets, simply snip a 50mm x 10mm strip from each corner, less work than cutting and fixing a hanging strip?

    Peter

  • Kevin Flowers

    Member
    January 9, 2011 at 12:21 am

    Peter
    have done it that way but preference is to fit strip, doesn’t take long. i keep ACM & acrylic strips precut out of scrap

    Kev

  • Martin Oxenham

    Member
    January 9, 2011 at 5:35 pm

    Panatrim was designed years ago when there was only perspex used for fascia signs. And the idea was to use a hanging panel so that it can expand without bowing or warping so the panel has to be smaller than the frame and hang freely. Also the idea was to be able to load the panels from the front just like a sideboard door…push the panel up to the top at an angle then push the bottom back in and it drops down onto the hanging strip. The first panel is then pushed to the end and the next panel fitted then slid back into the centre.
    If three panels are used then the end panels are pushed to the left and right with the centre panel fitted last then the end ones are slid back closing the joints. This is why the panel sizes are critical.
    If you use a material that does not expand in the sun then you don’t need a hanging strip, but you won’t be able to load them from the front. This is fine until the frame is fitted in a recess and you can’t take the end off.
    I used to work for the man who origanally invented the ideal but he never patened it.

  • David Rogers

    Member
    January 9, 2011 at 5:46 pm

    Agree with Rob – no strip required as it’s not like it’s the world’s most flexible material so it’s not going to pop out…and there are no joins.

    Basically – it’s NOT going to pop out under any circumstances so long as there is sufficient material all the way round. I normally cut my composite 12 to 15mm under the frame size as this allows for material thickness, corner brackets and temperature expansion/contraction.

    As far as hanging being better as it won’t foul on the corner brackets…well, you can either skim the corners or just leave it as both side will be the same.

    Unnecessary redundancy in this instance.

    Dave

  • Glenn Sharp

    Member
    January 9, 2011 at 8:05 pm

    for those that use acm…….

    when you have two panels……what do you do with the join?

  • Ian Johnston

    Member
    January 9, 2011 at 10:05 pm
    quote Glenn Sharp:

    for those that use acm…….

    when you have two panels……what do you do with the join?

    just use a joining plate of ACM and VHB tape, it’s fine to butt joint so long as the panels can expand at the other ends.

  • Stuart Miller

    Member
    January 10, 2011 at 2:43 pm

    Thanks for all the replies which havr basically confirmed my thinking.
    Just heard back from Alutrade who have given similar advice and beaten all other quotes.
    thanks again guys
    Stuart

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