Charbonnel liquid siccative varnish 75ml

Producer: Charbonnel

Liquid retouching primer, hard, with a satin non-transparent finish. It is applied cold with a brush.
After the plate is left in the acid for the required time, the plate is removed from the acid bath solution and the medium is removed with a suitable diluent. The amount of time the tile is left in the acid depends on the acid strength (measured with an acetometer), room temperature, and the depth at which you want to hit. The etching is then done and you only need to apply the final cuts. A retouching primer can be applied to the board, which can then be retouched as required according to the lines of the previous etching.