| Term - Oil reinforcement | 
| Oil reinforcement | SWPP Photographic Glossary | Friday 31st October 2025 | 
 
| 
 | 
 Oil reinforcementA method of altering the tonal range of prints on matte or textured fiber papers. The dried print is rubbed with a medium consisting of two parts of turpentine to one of mastic varnish and one of linseed oil. Artists oil colour is then applied locally to the print. 
 | 
| Information provided by: SWPP |