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Blick StudioArtists' ColoredPencils and Sets
10% Off Orders of $59 or More + Free Shipping
Orders of $59 or More*
On Orders of $35 or More**
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**After discounts taken
Sludge is an economical alternative to both a neutral ground and neutral color. It can be used in place of gesso when a muted base is desired. Sludge is semi-opaque and can be used in small quantities as an opacifier or medium-toned color extender.
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