Hi,
Thank you, Margaret and Michael! It seems to be a simple procedure.
This is really good news, then I can get more metal sheets. The standard is 1m x 2m. After cutting, they have always extras of them. More small pieces, probably for miniatures.
I tried with Venetian Turpentine and Copal (Kremer-shop is 10 min. from here). They make a thin film, but very strong (copal) and dry immediately! Too speedy.
Shall there be cracks? I see, copal is a very tricky thing. I think to add a little oil (walnut or linen) to make it slower.
Thank you all!
Leslie