Aerol Magnivue Dye Penetrant Test Spray is available as a 3-part system for quick and easy visual detection of flaws and cracks. Each set consists of a Penetrant Spray, a Cleaner Spray and a Developer Spray. Meets requirements of ASTM E 165-95 for Solvent Removable Penetrants, Non-Aqueous Wet Developers and Solvent Cleaners. Meets requirements of IS 3658 (1999): Code of practice for Liquid Penetrant Flaw Detection, ASME B & PV Code, Sec V, ASTM E 165 Meets RDSO Specification no. M&C/NDT/105/2001for Indian Railways Extremely low chlorine and sulphur contents. Non-corrosive to most metals. Applications: Suitable for use throughout the industry in areas such as Automotive, Welding, Engineering, Construction, Shipbuilding, and Machining. It reduces the need for immersion tanks or electrical detection equipment. It is ideal for use during welding, repairs and general maintenance. Directions: 1. Clean the area to be treated with the Cleaner Spray to remove oil, greases, dirt and other contaminants. Spray the cleaner and allow it to evaporate for about 30 seconds. Wipe off excess with a clean dry cloth. 2. Spray the Penetrant spray on the cleaned surface and allow a dwell time of 20-30 minutes. Remove excess Penetrant with a dry, clean, lint-free cloth. Further clean with a cloth moistened with the Cleaner Spray to remove excess. Do not spray the Cleaner directly on the area treated with the Penetrant as it may remove the penetrant indications. 3. Spray the Developer onto the area of inspection as an even, thin film. Allow about 10-20 minutes for the developer film to highlight the cracks and flaws, if any. The defects will show up as red lines or dots.