The Works Non Destructive Testing (NDT) Detection Fluids
These Non-Destructive Testing (NDT) detection fluids are used to detect casting, forging and welding surface defects, such as hairline cracks, surface porosity, leaks in new products, and fatigue cracks on in-service components.
The Works Fast-Vap Safe Solvent Cleaner is a fast-evaporating safe solvent with amazing cleaning & degreasing properties.
The Works Dye Penetrant offers excellent creeping properties, vivid violet and water rinsable.300ml
The Works Developer is fast acting giving very clear indications of the presence of flaws.
Step 1. Pre-cleaning:
The test surface is cleaned with the works fast vap to remove any dirt, paint, oil, grease or any loose scale that could either keep penetrant out of a defect, or cause irrelevant or false indications. The end goal of this step is a clean surface where any defects present are open to the surface, dry, and free of contamination.
Step 2. Application of Penetrant:
The penetrant is then applied to the surface of the item being tested, the penetrant is allowed "dwell time" to soak into any flaws which is generally 5 to 30 minutes. Smaller flaws require a longer penetration time due to their incompatible nature.
Step 3. Excess Penetrant Removal:
The excess penetrant is then removed from the surface, if excess penetrant is not properly removed, once the developer is applied, it may leave a background in the developed area that can mask indications or defects. In addition, this may also produce false indications severely hindering your ability to do a proper inspection.
Step 4. Application of Developer:
After excess penetrant has been removed a white developer is applied to the sample, the developer should form a semi-transparent, even coating on the surface. The developer draws penetrant from defects out onto the surface to form a visible indication, commonly known as bleed-out. Any areas that bleed-out can indicate the location, orientation and possible types of defects on the surface. Inspection of the test surface should take place after 10 to 30 minutes development time, depends of product kind. This time delay allows the blotting action to occur.