Scumbling is a painting technique that allows a varnished teak effect to be created on the marine plywood side panelling. Firstly, a coat of eggshell tan colour was applied (see previous post) and then scumble paint (dark brown) is applied. This paint is so thin and heavily linseed-oil based that it allows the eggshell undercoat to show through whilst soft brushes are used to create a wood-grain effect.