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Old 24-11-2006, 05:04   #1
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Fiberglass joint's and overlaps for DUFLEX

Has any here had much experience with Duflex panels. I know that a few of you will be using it and was wondering what width glass tape you use when joining panels together.

Is the jointing method shown in the pic all that is used, or does that get a 150mm tape over it as well?

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Old 14-03-2007, 21:22   #2
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That's a Z-scarf Dave. The fibreglass laminate is actually scarfed at about 15:1. You don't need to tape over it. ATL guarantee something like 90% strength compared to a continuous piece of Duflex. (I dont know the exact figure) I do know I have break tested some joins on scrap material, and the scarf appears to be just as strong as the rest.

Some nice points about the Z-scarves -

Using ATL's Z-press, you can join panels quickly. (It's a heated press in which the joins cure fast) I joined 160 panels (1.2mx2.4m each) in 3 days. (There's a photo of a Z-press at work here: )

The Z-joins only need a little sanding to remove excess epoxy to make them quite fair.

The Z-joins do not produce "hard or soft" points in the continuous panel - when you bend a series of joined panels they bend evenly through their entire length - it makes getting fair curves easy.

Of course the big one is, you don't need to tape over them.
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Old 15-03-2007, 03:45   #3
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DuFlex Ltd. Duflex Ltd - the Home of Weldable PVC Foam
Newbold Drive, Castle Donington, Derby DE74 2QX, United Kingdom
Telephone: +44 (0) 1332 810811
FAX: +44 (0) 1332 810657
Customer Support E-mail:

Their Brochure provides some good basic information:

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