Jo Sonja's Crackle Medium

A transparent medium which causes JO SONJA'S® ARTISTS' COLORS to separate into crackled patterns of various sizes. Can be used to simulate the effects of aging.

** Jo Sonja's Crackle Medium is recommended for use only with Jo Sonja's® Artists' Colors! Bottle acrylics and craft paints may not crackle. A sample piece is recommended.

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JJ3610 2 oz. - $2.13
JJ3710 8 oz. - $7.44

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Directions for Crackle Medium Backgrounds

1. Use One Step Basecoating method by mixing All Purpose Sealer with desired Jo Sonja's® Artists' or Background Colors 1:1. Sand if necessary. Apply an uncured layer of base color WITHOUT the addition of All Purpose Sealer. The fresher the and thicker the application of paint, the deeper the crackle pattern will be. DO NOT USE BLOW DRYER! This will cure the paint and prevent Crackle Medium from working properly.
2. Allow basecoat to dry to the touch.
3. Using a large soft bristle brush, apply a coat of Crackle Medium using brush similar to a palette knife. Load brush, lay medium onto the surface as if spreading frosting. Slip slap slightly to "blend out" the brush strokes. Crackle pattern will follow the direction of brush strokes. DO NOT go back into the medium once it has begun to dry. A thicker application of medium will result in a larger crackle pattern. A thinner application will provide fine, wispy crackles. The Crackle Medium will dry clear and level out slightly.
4. Crackle Medium is best when allowed to dry naturally. Do not touch during the drying process.
5. When Crackle Medium is completely dry, surface will be slick. Sanding will decrease the slickness and smooth the surface. Gently sand using #400 - #600 sandpaper until desired smoothness is attained.
6. Antiquing may be applied to accentuate the crackle pattern. Thin desired color with Retarder and brush into cracks. Allow to dry. Remove excess color with a soft cloth moistened with Retarder or water.
7. Design can be painted over the crackled background. Allow to dry completely before varnishing.

**NOTE: As a surface only crackle, the resulting pattern will be very fine. You MUST antique the surface to accentuate the crackle pattern Clean up with mild soap and cool water.

Crackle Medium was used here by Vicki Rhodes CDA to simulate aging. Technique and design are from Artist Journal #28 - Spring 1997 - Item JA38.
Crackled background and a light glazing technique combine to give this painting a nice aged patina. Pattern Packet JP1106.
Crackled background and a light glazing technique combine to give this painting a nice aged patina. Pattern Packet JP1106.

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