For deactivating glassware.
Treat the glass tubing that you use for columns with Sylon-CT solution (5% dimethyldichlorosilane in toluene). It deactivates the tubing for use up to 350 °C to 400 °C, far exceeding the capabilities of other deactivating agents used at room temperature. Sylon CT^? also deactivates transfer lines and glass or glass-lined injection port liners. Instructions included.