rai Member Joined Sep 17, 2007 Messages 81 Format Multi Format Dec 29, 2015 #1 Greetings! I try to make a varnish for collodion plates based on gum arabic . Someone of you have any formula? Thank you
Greetings! I try to make a varnish for collodion plates based on gum arabic . Someone of you have any formula? Thank you
ced Member Joined Oct 10, 2011 Messages 866 Location Belgica Format Multi Format Dec 29, 2015 #2 The only issue I can think of is that the gum will absorb moisture allowing eventually some penetration of damaging substances like fungus or chemicals.
The only issue I can think of is that the gum will absorb moisture allowing eventually some penetration of damaging substances like fungus or chemicals.