Internal impregnation services place an impregnant inside a metal casting and apply hydraulic pressure, forcing the liquid through the leak paths in the casting wall. Wet vacuum (VW) impregnation ...

Internal impregnation equipment places an impregnant inside a metal casting and applies hydraulic pressure, forcing the liquid through the leak paths in the casting wall. Wet vacuum (VW) impregnation ...

It's also important to sand the wood with sandpaper to ensure a smooth surface that better absorbs the impregnant. Weather ...