This trays from MARK3 have excellent retention and the lock which is at the posterior allows for gagging. The finger rest makes it easy for removal from the patient. Material retention is ascertained by this design. They are made of durable material and the resin is durable.
This modern wax is made from natural materials such as, paraffin, carnauba, microcrystalline and beeswax. The “X- thin” red wax adapts with ease on the impression tray. It is doesn’t require softening during cleaning because it is not too sticky.