@robin I used Titebond for speed because we were only running tests, but I reckon the combination of Titebond AND spray AND thin (and a little warped) sacrificial veneers all contributed.
 

Conclusion? I can’t afford the time or the wood to do a full set of controlled experiments. There are too many variables: Mould depth The curve of the carve Thickness of veneers Number of layers Variety of glues Taped in…   Read more»

@jamesbisset 

• And this time the lamination crumpled up like a hankie.

You’re certainly having challenges there. Do you think that wetting it is the problem there. I think I remember Darren using non water based glues, maybe for that reason.
 

And so I returned with a new mould made with 6 layers of 2mm MDF rather than 5 layers of 3mm MDF – so approx 12mm deep rather than 15mm. We were running out of fancy veneer we could risk…   Read more»