If you find these results unsatisfactory, you can purchase a product called ''Snow Print Wax''. This product is marketed to the law enforcement community for forensic track casting (of human foot prints and tire tracks). It is far more expensive than plaster, but is nearly certain to yield superior results. You can also try using joint compound. Joint compound is similar to plaster with two exceptions: it does not generate heat when setting, and it is not nearly as durable once it sets. If you use joint compound, you may wish to pour plaster over the finished cast to get a positive cast. The positive cast made from plaster will be far more durable than the negative original made from joint compound.
