table allows the processing of all types of visible light cure materials in various appliance shapes with or without the use of a model the triad u2122 custom tray material i e original blue and triad trutray u2122 custom tray material can be used for all applications where accuracy and stability are key the triad u2122 denture base material allows for visible light cure denture base fabrication relines and repairs as well as orthodontic appliances custom trays provisional crown and bridge units and many other applications the trays have been designed to be made on the basis of small medium and large casts similar to those used for teaching purposes in dentistry first the cast is painted with two layers of tinfoil substitute to prevent the acrylic resin from sticking next base plate wax can be used to generously block out i e fill in all undercuts within the tray area outlined on the cast if auto curing resin is to be used and using pre measured amounts of monomer and polymer add the powder to the liquid and mix the materials allow the mix to set until it reaches the doughy stage the resin is centered over the cast and.