Jo Sonja 250ml Decor Crackle Medium
Jo Sonja's DÃ©cor Crackle is a transparent medium to be used BETWEEN layers of Jo Sonja's Artists' Colours to provide a weathered paint or aged appearance.
The top colour will break apart to reveal the base colour. Metallic and Iridescent colours should not be used over DÃ©cor Crackle as they will not work effectively. They may however be used as base coat colours.
Pre-test varnish over Decor Crackle as some water based varnishes can reactivate this medium. Solvent varnishes may be used.
- Seal the surface with All Purpose Sealer or mix Sealer with your base colour. You may use tube or Background Colours.
- When dry, apply a medium-to-thick even coat of DÃ©cor Crackle Medium.
- Allow the DÃ©cor Crackle to completely dry; a hair dryer may be used.
- Apply a contrasting coat of Jo Sonja's Artists' Colours. This top colour will separate to expose the base colour.
Wide cracks will result from a heavier application of paint, finer from a thinner application. (The crackle effect will appear slowly as the top coat dries).
Jo Sonja's DÃ©cor Crackle is formulated to work with Jo Sonja's Artists' Colours. If using an alternate brand, particularly as the top coat, we suggest pre-testing to ensure compatibility.
Jo Sonja's tube colours generally give a better result than Jo Sonja's Background Colours. House paints in most cases are not compatible.
Once crackled and dry, if not sealed or varnished, water can reactivate DÃ©cor Crackle and cause it to blister and peel. If you wish to crackle a background and paint a design directly over it, we recommend a coat of Clear Glaze Medium to lightly seal before proceeding. Be light and quick when applying your medium or varnish and do not over-work.