Impression Compound

 Impression Compound is a thermoplastic material which softens when heated and hardens when cooled,

A major advantage of impression compound materials is that they are very easy to adjust. Alterations to the impression can be made by removing replacing or adding material until a satisfactory result is obtained. Impression compound is more rigid when set and can be softened again if you need to make more adjustments. This helps achieve an accurate impression. 

Available in Red Cakes and Green Sticks, 
Red soften at 50-55°C, Green soften at 45-50°C