OK so having worked as a hobbyist with wood for a number of years and watched a number of videos (throw your hands up in dismay) read some items about veneering thought I`d have a go with some of the 20mm ply and crown cut veneer plus what I thought might suit me best for the first attempt -glue film. All seemed to progress well yesterday and having left the three completed panels in what appeared to be a satisfactory state left the workshop and went home to watch the rugby. Back this morning and low and behold my smug expression from yesterday has turned to tears. All three panels have lifted some worse than others. Have "re-ironed" them but am not now optimistic. So pointers please. Following ironing the film down with iron on wool setting, allowed to cool. Removed backing paper. Laid on the .6mm veneer and the after covering with brown paper, ironed over on maximum iron heat following with a large jack plane- no old cast iron available. All seemed well.
veneering lifted
- Thread starter jddevel
- Start date
Help Support UKworkshop.co.uk:
custard
Established Member
I'm not sure I'd have quite used the "maximum" setting, but that shouldn't have made a huge difference. My guess is that you didn't allow the iron to dwell long enough, a quick check is when you're doing an edge you should see some minute traces of squeeze out. Another factor is that all surfaces need to be clean, smooth, flat, and dust free, cheaper grades of ply won't tick all those boxes. Can you tell if the glue has lifted from the veneer or from the ground?
The technique genuinely works, so there's something amiss in your technique or materials. Like I say, the most likely candidate is that you've rushed it a bit. To prove the concept to yourself you might try again on a bit of scrap MDF, that'll guarantee a perfectly smooth, flat surface so it will take a couple of variables out of the mix (any ply below B grade won't have the show surface sanded smooth).
Good luck!
The technique genuinely works, so there's something amiss in your technique or materials. Like I say, the most likely candidate is that you've rushed it a bit. To prove the concept to yourself you might try again on a bit of scrap MDF, that'll guarantee a perfectly smooth, flat surface so it will take a couple of variables out of the mix (any ply below B grade won't have the show surface sanded smooth).
Good luck!
The ply being used was marine ply quality Russian birch from Timbnet. The glue film from AdCo UK the glue"specialists. As to which surface has delaminated- difficult to tell as it`s basically in the middle of the panel. 99.9% of the edges seem OK. Looks as if its my " IRONING" technique. Perhaps advice from my wife!!!!!!!!
Paul Chapman
Established Member
When using Glufilm, I've found it best to iron the veneer and the substrate to equalise the moisture content before applying the Glufilm.
Cheers :wink:
Paul
Cheers :wink:
Paul
Update. I`ve re-ironed the panels during today but this time have kept the panels in my house. The temperature obviously in here (around 21c) is a lot higher than the workshop ( between 5 & 8C). So far veneer has remained stable. Is this temperature situation relevant?
