Grumbacher Japan Drier 2.5 OZ

Japan drier is a liquid additive used with oil-based paints and mediums to speed up drying. It works by helping the oil oxidize (cure) faster.

Key points:

• Add only a few drops—it’s very concentrated
• Used in oil painting, varnish, and enamel paints
• Helps layers dry faster and more evenly
• Too much can cause cracking or darkening