Biodegradable Crackle Glaze that’s Water Based, Oil Free & Acrylic Free. Apply the glaze between contrasting colours for dramatic crackle effect. Used in a slightly different way to acrylic crackle glazes, for this one you apply on to base coat of your choice and let it dry completely before applying the top coat which splits across the surface leaving a dramatic crackle effect. You can still control the drama of the crackle by laying the glaze on thick for a wide split or thinly for a finer, craquelure effect. You could also use a heat gun to speed up the process. 9 m2 per litre. These are tiny pots as it’s aimed at the home furniture market, let us know if you want bigger.