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Grumbacher mediums thicken or thin paints without harming their adhesive, binding, or film-forming qualities, and allow artists to achieve increased flow and rapid or slow drying. Also proven to guard against yellowing and cracking.
Grumbacher Cobalt Drier is the only siccative that has been scientifically proven to be the least harmful to use for fine art painting. Cobalt Drier speeds drying of oil colors and oil painting mediums. Because it is extremely strong, Cobalt Drier should be used sparingly by applying it in drops. It should not be mixed directly into oil paints, but first mixed into an oil painting medium, which can then be added to the paint. Cobalt Drier should always be tested before using it in a painting.
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® Grumbacher is a registered trademark of Chartpak.™ Grumtine is a trademark.
Dick Blick Art Materials · P.O. Box 1267 · Galesburg, IL 61402-1267 · Toll-free Phone (800) 828-4548 International Phone +1-309-343-6181 ext. 5402 · Fax (800) 621-8293
Dick Blick Art Materials®, Blick®, Blick Studio®, and Artists Pick Blick® are registered trademarks ofDick Blick Holdings Inc. © Copyright 1999-2018 Dick Blick Holdings Inc. All rights reserved.