Ideal Wax with excellent plasticity for modeling of complicated preparations like inlays, on lays, crowns & bridges in dentistry as well as small and highly intricate modeling techniques in jewelry industry. Blue inlay casting wax is a superior wax for build-up that softens in hot water and can be carved easily to produce excellent results. Blue inlay casting wax is a superior wax for build-up that softens in hot water and can be carved easily to produce excellent results.