MemberJanuary 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