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Originally Posted by Julie Deane
I tried to use BEVA film inbetween a substrate similar to Dibond and my canvas, and ended up with a lot of bubbles.
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Dibond and resin-core, aluminum overlaid laminates are not suitable for "dry mount" methods requiring heat. The material "bubbles" because applying heat causes the resin cores to off-gas, causing bubbles and delamination.
Beva-gel is a "paste" suitable for maroflage, essentially the problem to be solved in this instance. It's "spendy", and all told, not much different from water-reducible vinyl/acrylic adhesive compounds used in construction for setting tile. I've used these adhesives, have a few samples in full weather (going on two years) and it seems quite suitable.
The using character including the ability to remove a mounted canvas from panel, reversing the adhesive with modest heat is pretty much the same as Beva-gel - price, about 1/5.