The elements to be impregnated are introduced dry into the autoclave, which has a guillotine type closure that can be activated only with air.

Inside, an almost absolute vacuum is created, so to open the porous areas of the elements as much as possible.

Then, the specific impregnating product is brought from the storage tank and, once all of the metallic parts have been submerged, an internal pressure of about 5 atmospheres is created.

After several minutes of anti-porous treatment, the impregnating product is drained off (recovering it totally), the autoclave is opened, the metal is removed and subjected, finally, to a double washing cycle, first with cold water and then with hot water with tumbling and effervescence.

autoclave closed

autoclave open

the plant

explanatory film