Penetrant Inspection is a Non-destructive method of testing where by a penetrant is applied to the surface of a part by means of spraying, brushing or submerging. The penetrant is left for a period known as ‘dwell time’. Once the required dwell time has passed, excess penetrant is removed to leave a clean surface. A developer is then added to the surface which works as a contrast to the penetrant.
Penetrant inspection can be used in several sensitivity levels, visible or fluorescent, solvent removeable or water washable and post emulsification.
Parts that can be inspected are:
- Butt and Fillet welds all materials
- Storage tanks and pipework
- Machined metallic parts such as Aluminium, Austenitic stainless steel, copper, bronze, brass
- Vitrified ceramics