Putty with organic solvents specially designed to cover joints and defects on your models. If necessary, it can be diluted with Extra Thin Cement A.MIG-2025 or with Odourless Enamel thinner A.MIG-2019 and applied with a brush. This formula will not shrink and dries in 24 hours. It can be sanded to obtain a smooth and very resistant surface ready for engraving and painting.