Gasket, Silicone Reinforced, 0.060" Shim for Slider Plate Assembly, Dr. Oligo 192XLc. This gasket is used to shim and seal underneath the the 96-well plate on the Dr. Oligo 192XLc instruments. The original shim was 1/16" thickness and made from standard silicone. This new shim is made from reinforced silicone and is a replacement for the original shim and is now the current default shim on all new Dr. Oligo 192XLc instruments.