Ainsworth DiamondRock is the new standard in scannable Ultra-Hard Die Stones. It offers a class a leading hardness and wear resistance thanks to extremely high transverse and compressive strengths. It mixes easily with a low water content, pours cleanly and offers a long working time and a rapid setting time. It also has an ultra-low setting expansion of just 0.07%. Nothing else comes close for accuracy and strength. Ainsworth DiamondRock is ideal for all crown and bridge work, and also suitable for other work when maximum accuracy is required.