Details These pastes dry to a hard, opaque film. Although still flexible, they are more rigid than the gels and able to hold stiff peaks. The Light Molding Paste offers significant weight reduction when building thick layers. It is soft, very flexible and dries to an opaque, matte finish. The Hard Molding Paste provides the hardest opaque, matte finish. It blends well with color and is useful for creating tough, durable finishes. The dried film can be carved.