Preserving some artwork on Plywood
Recently we had a visit from someone who received (won I think) some street art that was done in front of an audience on a piece of birch plywood; as a matter of interest, the plywood came from Russia.
It isn't that big, about 1m wide by about 600mm deep by about 15mm thick. One side is original with just the markings from the manufacturer, the other side has been spray painted with various spray cans by a street artist; someone who does graffiti :D
They wish to hang it outside and came to me for advice...
I've wondered about this for the last few days, did some searching on the net, but am sort of stumped as virtually everything I have found, talks about clear varnish/lacquer stuff for unstained material, or previously oiled and/or stained material.
Any ideas?
Mick.