Taurus inspection sprays are used as a low-cost inspection method for checking material defects such as hairline cracks, surface porosity and leaks in non-porous materials such as metals, plastics and ceramics.The inspection process is carried out in six stages:1. Apply Weld Cleaner A to pre-clean the test surface. 2. Apply Dye Penetrant B to the surface being tested. 3. Remove excess penetrant. 4. Apply Developer C to the surface being tested. 5. Inspect the tested area for surface breaks/cracks. 6. Clean the tested area once inspection is completed