Impregnation

Impregnation

Impregnation is the process of totally permeating or infusing castings or material voids with a substance that fills the voids, hardens and subsequently prevents leakage when the casting are subjected to internal or external pressures.  When imperfections are found in pressure testing, small leaks may be impregnated, and re-tested, when permitted by customer blueprints and/or specifications.