New
concept of image colouring of wood with same repeat exactness.
This is done among other things by an undercoating with
Prepawood.
Prepawood is a special pre-stain.
It enables the wood surfaces to equally absorb the dispersion
paint. Dispersion paint is then equally bounded directly
on the OH groups in the wood.
The "Wirth"
machines applies equally this colourless undercoating on
the flat material.
