White Dryer for Sennelier Oil Paints 75ml Colorless drying agent containing calcium salts (they have a role in activating the natural dryness of the pigments). Oil solution of certain metallic salts to dry the oils after a few hours. It causes the oil to "hyperventilate" to demand more oxygen and accelerate the hardening of the paint layers. It does not spoil the nuances or the quality of the brushstroke. Reduces the difference that naturally exists between the normal drying nature of most colors and the slow drying tendency of other colors. Does not yellow. It can be mixed directly with the oil color (2% maximum) or thinner, adding several drops (5 maximum) per 5 ml. Excess dryer negatively affects the final quality of the paint film. 75 ml bottle. Brand: Sennelier.