Test method
Fluorescent penetrant testing is a method to find fine flaws opened on the surface of the test specimen by impregnating a shimmery liquid into them to enlarge the flaw.It is used when mass inspection of mass produced items, etc. is required.
*For those who are considering the fluorescent penetrant testing in the aircraft industry, please see here.
View test methods for Fluorescent penetrant testing (for the aircraft industry)
Materials covered in the testing
- Metallic and non-metallic material
Products used
- Flaw detection material
- Black light
- Flaw detection equipment (In case of many inspections)
Features of testing
feature
Flaw detection is possible even for metallic and non-metallic materials if they are not affected by flaw detection materials and have no hygroscopic property
feature
It is easy to apply even to complicated test specimens as flaw detection materials are liquid
feature
Indicated patterns (flaws) are observed by using the black light
feature
In many cases, it is adopted in conducting mass inspection by introducing the flaw detection equipment
feature
In the non-development method, post-processing (removal of developing agent) is not required
Flow of flaw detection
Fluorescent penetrant testing (non-development method) is generally conducted by the following procedure.
①Pretreatment
②Penetration treatment
③Removal
④Drying treatment
⑤Examination
Flaw detection material lineup
| Category | Product Name | Compatible with JIS | Features |
|---|---|---|---|
| Penetrant | Super Glo OD-1800N | Excellent wastewater treatment and low foaming. | |
| Super Glo OD-2800N | High fluorescent brightness and high sensitivity. | ||
| Super Glo OD-2800Ⅱ | High fluorescent brightness and higher sensitivity than the OD-2800N. | ||
| Super Glo OD-2800Ⅲ | Extremely high fluorescent brightness and optimal for hairline crack detection. | ||
| Super Glo OD-2800T | Super high sensitivity type using specially refined materials (Sensitivity level 4). Optimal for flaw detection in nuclear power equipment. | ||
| Super Glo OD-2900Ⅲ | ✓ | High sensitivity type with less foaming than the OD-2800 III (Sensitivity level 3). | |
| Super Glo RP-2000C | ✓ | Solvent-removable fluorescent penetrant. Low viscosity makes it optimal for detecting penetration flaws. | |
| Super Glo OD-20S | Water-based fluorescent penetrant to eliminate fire hazard. | ||
| Super Glo OD-50A・Ⅱ | Water-based fluorescent penetrant with low COD value to eliminate fire hazard. | ||
| Eco Glo EG-2000 | Water-based fluorescent penetrant, no fire hazard. Low foaming when drained, low COD value. | ||
| Developer | Super Glo UD-T | ✓ | Quick-drying developer. Optimal for flaw detection in nuclear power equipment. |
| Super Glo DN-600P | ✓ | Dry developer. Fine white powder with excellent ultraviolet transmittance. Fluorescent glow of flaw indication allows users to detect minute flaws. | |
| Super Glo DN-905D | Wet developer. Uses fine powder scattered in a fixed amount of water. Shows excellent contrast and provides clear indication of flaws without blurring. | ||
| Super Glo DN-600S | Aerosol-type quick-drying developer. Quick drying provides increased penetrant suction force. | ||
| Remover | Super Glo AS-T | ✓ | Solvent remover for water washing (water spray). Optimal for flaw detection in nuclear power equipment. |
Details of product
- Cleaner/Remover
- Developer
- Fluorescent penetrant
Super Glo
Super-Glo is standard fluorescent penetrant flaw detection material. The rich and varied lineup provides penetrants that are optimal for a wide range of applications and purposes.
- Fluorescent penetrant
Eco Glo
Eco-Glo is an ecological penetrant with main components that are safe for people and the environment. It maintains all the penetrating performance of standard penetrant while also providing improved wastewater treatment and washing performance.
Fluorescent penetrant equipment
Related products
Black light・UV intensity tester
MARKTEC’s black lights (ultraviolet flaw detection lights) are designed and fabricated under the most suitable conditions for flaw detection testings in which ultraviolet rays (UV-A) including 365 nm are irradiated.
Test pieces for magnetic particle testing (link destination)
They are used for checking the strength and direction of the magnetic field on the testing surface, performance inspection of flaw detection equipment and inspection liquid, checking the effective range of flaw detection and conditions of flaw detection, etc.
Product Column
A Course to Better Understand Penetrant Testing
Well-understood course
A Course to Better Understand Penetrant Testing
About designated quantities
in the Fire Service Law
Non-destructive testing・Printing and marking
About designated quantities in the Fire Service Law
Non-destructive testing・Printing and marking
About treatment of wastewater after flaw detection testings
Product information for Fluorescent
Penetrant Flaw Detection Material
can also be found in the catalog.
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