JAP Penetrant W/W
الوصف
JAP Water Washable Liquid Penetrant
JAP W/W is a water washable deep red coloured liquid penetrant for use in penetrant testing processes. JAP W/W uses a Hydrocarbon carrier fluid with additives to give a high level of inspection integrity and increase the ‘searching’ properties of the dye. JAP W/W should be applied to clean, grease free components and any surface coatings should be removed prior to inspection.
JAP W/W is ideal for the inspection of welded fabrications, pressure vessels, structures, pipes, castings, forgings, non-porous ceramics and many other non-ferrous and ferromagnetic components.
JAP W/W aerosols use a CO² propellant which gives an excellent active product to propellant ratio when compared to liquid propellants like Butane, Isobutane and Propane.
Certified to meet Sulphur and Halogen levels required by military, nuclear and ASME standards.
Benefits
| White Light | >500 Lux |
| Min. Dwell Time | 15min |
| Flash Point | >100°C |
| Carrier Fluid | Hydrocarbon Mix. |
| Propellant | Carbon Dioxide |
| Penetrant Type | Type 2 |
| Testing Method(s) | A and C |
| Sensitivity | Level 2 – Medium |
| Temperature Range | -5 to 50°C |
| Shelf Life | Aerosol – 18 Months Bulk – 36 Months |
| Standards | ISO 3452 ISO 571 ASTM E1417 ASTM E165 |
Applications
Defect location: open to surface
Ideal for:
- A production environment where many parts are inspected daily.
- Castings
- Forgings
- Welds
- Pressure vessels
- Tubular goods
- General metal work
Defect examples: cracks and leaks
Instructions for use
Ensure test part is clean and dry, and free from oil, grease and other contaminants.
Apply penetrant by immersion dip, brush, flow on, conventional or electrostatic spray. Cover the test area completely.
Allow penetration time. Minimum penetration time is 2 to 5 minutes, with 10 minutes being adequate for most situations. Lower temperatures thicken the penetrant and require longer penetration times.
Spray the component with clean water at 10°C to 40°C, or wipe with a lint-free cloth dampened with JAC 2 or JAC 3 cleaner. Once clean, the component should be dried before a developer is applied.
Apply a thin layer of developer* to the surface and allow a minimum of 10 minutes development time before inspecting the component under white light. Indications will appear dark red against the white developer background.
* A developer is used to maximise sensitivity and provide a white contrasting background. Two types of developer can be used:
- Solvent-based: quick-drying materials which are applied by spraying. The component under test must be dry before developer is applied.
- Water-based (aqueous): can be applied by dipping or spraying. To maximise penetrant sensitivity, parts should only be exposed to aqueous developers for short periods of time. The component must be dried before inspection.
Developer residue can be removed either by wiping with a cloth or by a water and detergent wash. Penetrant residues can be removed by vapour degreasing or solvent soak.
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