Thickening Powder for Marbling Paints. Create your own marbling bath at home with this easy-to-use thickening powder, specially designed for use with Pébéo Marbling colours. Just dissolve in water to form a gel-like bath that keeps paints on the surface. Enables stunning marbled effects on paper, fabric, wood, plaster, or card. Can be used for multiple projects—but small, fresh batches work best. Preparation time: mix 7 g in 1 L cold water and let it set for 2 hours. Ideal for use with droppers, combs, or styluses to swirl colours on the bath surface. For best results, use on light-coloured or satin-finish fabric. Fix colours by ironing after drying.