Roberson Rhinds Stopping Out Varnish 60ml

Roberson Stopping Out Varnish for etching plates. Coat the plate with two coats to make sure that it provides a good acid resist ground. This stopping out varnish is dark brown/black in colour, quick-drying and meths based.
Stopping Out Varnish can also be called Straw Hat Varnish as it was originally designed to waterproof hats.
Available in 60ml and 250ml metal containers.