BUEHLER VACUUM IMPREGNATION EQUIPMENT I BUEHLER. VACUUM IMPREGNATION EQUIPMENT I evacuates entrapped air from specimens. Without the presence of air, the mounting compound fills the specimen pores and eliminates gaps between the specimen and the compound. As a result, edge retention is enhanced and friable samples are supported during grinding and polishing. The rugged vacuum pump supplies sufficient vacuum to quickly evacuate entrapped air from any porous specimen. The patented, high strength plastic chamber maintains vacuum throughout the impregnation period by means of a simple “O” ring seal. Several specimens may be impregnated at one time using a unique rotary table, within the vacuum chamber The ingenious pouring mechanism enables the premixed mounting compound to be placed inside the chamber and then poured into molds one at a time. A variety of epoxy and polyester castable (cold) mounting compounds can be used. Since the specimens are encapsulated under vacuum, the possibility of air entering is completely eliminated VACUUM IMPREGNATION EQUIPMENT II is Easy To Use: n Place the specimen molds on the rotating turn table within the vacuum chamber n After the mounting compound is mixed, slide the mixing cup into the cup holder n Place the vacuum chamber cover onto the base n Pump down to the recommended vacuum of 26″ Hg. (559 Torr) n Pour the mounting compound into the mold and then use the control switch to advance the rotary table to the next mold n Once cast, hold for one (1) minute, then vent to atmospheric pressure; repeat the cycle several times n Open the chamber, remove the mounts and allow to cure normallyThe unique rotatable vacuum table and tilting dispensing mechanism allows the operator to pour epoxies under vacuum to better impregnate specimens. Replaceable Vacuum Table Liners protect the rotating table and eliminate messy cleanup.