CoorsTek® Conical Ceramic Annealing Cups
CoorsTek® porcelain annealing cup have a conical shape and are glazed inside and out except for outside bottom surface and rim. CoorsTek® chemical-porcelain ware has thermal-shock resistance. To prevent thermal stress cracks on porcelain ware, CoorsTek® strongly recommends a heating/cooling rate not to exceed 200°C/hour. to prolong the life of your CoorsTek® labware be sure to follow gradual heating and cooling rates. Use an oven or hot plate as an intermediate step when quicker heating/cooling rates are required. Gradually increase flame intensity when using a gas burner. Avoid contact of heated ware with a cold surface. Carefully inspect your ceramic labware prior to each use.