Darwi Roc 1 kg is a ready-to-use, self-hardening modelling clay for strong sculptures, detailed models and frame repairs. The clay is white and easy to shape, yet exceptionally hard and marble-like after drying and sanding.

Knead the clay thoroughly, then build it up on a clean, dry surface. Roc adheres to materials including wood, glass, polystyrene, ceramic and plastic. Work on the details while the clay is still moist and use only a little water to smooth the surface.

Allow the piece to dry slowly in the air, leaving at least 24 hours per centimetre of thickness. The clay does not shrink. Once fully dry, Roc can be sanded to a smooth, marble-like surface, then painted or varnished.