For use with all intaglio metal plate etching.
Degrease plate before applying GOLDEN Stop-Out Varnish.
Apply the Stop-out Varnish by either pouring directly from the container or by brushing it onto the metal plate.
Can be force-dried with a hair-dryer.
When re-applying the Stop-Out Varnish onto copper plates, rinse plate with a deoxidation liquid consisting of either a vinegar and salt solution or Soya Source. Rinse with cold water, dry and then apply the Stop-out Varnish.
Mix one half cup of washing soda (sodium carbonate) with 1 quart of hot water and place into photo developing tray. Place the metal plate with Stop-out Varnish into this solution and rub with a soft brush until the varnish completely dissolves. If Stop-out Varnish is allowed to remain on a plate for more than a few days, a 10% solution of household ammonia and cold water must be used in place of the soda solution described above.