This putty is versatile and will adhere to and will seal or bond ceramics, wood, plastics, glass, metals, cement etc. It can be sculpted and when set can be turned, sawn, drilled, tapped, filed, sandpapered, painted or cellulose sprayed. It is very responsive to water and when sculpting and modelling the use of water with scalpels, wire tools, probes, engraving tools etc and with soft brushes, cloth etc is highly recommended. It is designed for military, railway, farm and ship modelling. Also great for car body, plumbing, caravan and boat repairs and many more uses in the home and industry. Milliput goes rock hard in 2-3 hours at normal room temperature.