F or rapid customizing of plastic, resin, wood & metal models. This 2-part, fast- curing, epoxy putty will not shrink or crack and is pre-measured and packed for accurate mixing of the two parts. It sets in 10-15 minutes to a tough, lightweight plastic and unlike many other putties it is easy to sand, carve & paint once set . Accurate and easy mixing Long life with re-sealable foil bag Easily rolled to thin films Holds its shape