Glas-Col Hemispherical Mantles Series O Glas-Col Glass Fabric Exterior

Glas-Col Hemispherical Mantles Series O Glas-Col Glass Fabric Exterior. It is used for the slow heating of glassware immersed in water baths for the purpose of crystallization. The unique construction of the Glas-Col O Series Flask Mantle allows crystallization of small particles to a greater degree than with conventional cotton-sheared mantles. The fabric is impregnated with silicone to improve heat transfer in laboratory vessels that contain a liquid. Surfaces are impregnated with a brown org