Daler-Rowney offers a complete range of mediums and varnishes, which can be used with any of its oil colors.
Poppy Oil — This is a clear oil medium to mix with and reduce white and lighter colors, and to enhance gloss and flow. Although it is less inclined to yellow than linseed oil, it also dries slower. Using Poppy Oil in too high a proportion retards thorough drying.
® Daler-Rowney is a registered trademark.