{"product_id":"magnaflux-20b-fluorescent-magnetic-particles","title":"Magnaflux 20B Fluorescent Magnetic Particles | Water-Based MPI Premix","description":"\u003ch2\u003eMagnaflux MAGNAGLO 20B Preblended Dry Mix Fluorescent Particles\u003c\/h2\u003e\n\u003cp\u003eMagnaflux 20B is a highly sensitive dry magnetic particle premix designed for locating fine discontinuities in high-volume applications. This exceptional formulation combines Magnaflux’s industry-leading \u003ca href=\"https:\/\/www.ndtsupplies.com\/products\/magnaflux-14a-fluorescent-particles\" target=\"_blank\" rel=\"noopener\"\u003e14A magnetic particles\u003c\/a\u003e with water conditioners and corrosion inhibitors, creating an easy-to-use premix for water-based magnetic particle suspension. The ultra-sensitive particles yield clear, bright, fluorescent green indications under UV black light, ensuring unparalleled inspection quality and accuracy.\u003c\/p\u003e\n\u003cp\u003eAs a dry mix of 14A with wetting agents and corrosion inhibitors, 20B is added to a water bath for effective flaw detection. Indications appear as bright yellow-green under ultraviolet light, allowing for easy identification of cracks, seams, inclusions, laps, tears, and flakes in ferromagnetic materials including steel and iron alloys.\u003c\/p\u003e\n\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremix Convenience:\u003c\/strong\u003e Ready-to-dissolve powder for quick, reliable bath preparation — no separate wetting agents or inhibitors needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear, Bright Indications:\u003c\/strong\u003e Fluorescent green indications under UV light for fast, accurate defect identification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity:\u003c\/strong\u003e 14A particle base provides precise detection of fine surface and near-surface discontinuities\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Corrosion Protection:\u003c\/strong\u003e Built-in inhibitors protect parts and equipment during and after inspection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Foaming Formula:\u003c\/strong\u003e Stable bath with minimal foam for consistent, uninterrupted inspections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Particle Mobility:\u003c\/strong\u003e Optimized dispersion stability and surface wetting for reliable indication formation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Cleanup:\u003c\/strong\u003e Water-based formula makes post-inspection cleanup straightforward\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"expert-tip-box\"\u003e\n\u003cspan class=\"expert-tip-title\"\u003ePro NDT Tip\u003c\/span\u003e\n\u003cp class=\"expert-tip-content\"\u003e\u003cstrong\u003eMixing 20B Correctly:\u003c\/strong\u003e Mix at 1.5 oz per gallon (11.2 g\/L) of water. First create a thick paste with a small amount of water, then add to the tank and agitate for at least 15 minutes — use warm water (100°F \/ 38°C) for faster dissolution. Check bath concentration daily using an ASTM centrifuge tube (e.g., Magnaflux 8493). Do not mix with oil-based carriers. Keep bath temperature within 32–120°F (0–49°C) for optimal particle mobility.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-volume inspections in forging, casting, stamping, and welding\u003c\/li\u003e\n\u003cli\u003eIn-process and in-service inspections of ferromagnetic components\u003c\/li\u003e\n\u003cli\u003eDetecting surface and slightly subsurface defects in steel and iron alloys\u003c\/li\u003e\n\u003cli\u003eAerospace, automotive, and manufacturing quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Magnaflux MAGNAGLO 20B Fluorescent Magnetic Particle Premix\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNDT Method:\u003c\/strong\u003e Magnetic Particle Testing, Fluorescent, Wet Method\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuspension Vehicle:\u003c\/strong\u003e Water\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndication Color:\u003c\/strong\u003e Bright fluorescent yellow-green under UV light\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMix Ratio:\u003c\/strong\u003e 1.5 oz per gallon (11.2 g\/L)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 32–120°F \/ 0–49°C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Equipment:\u003c\/strong\u003e Magnetizing device, UV light source\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Magnaflux Magnaglo\u003c\/p\u003e\n\n\u003ch2\u003eIndustry Standards \u0026amp; Compliance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAMS 3044\u003c\/li\u003e\n\u003cli\u003eASTM E709 \u0026amp; E1444\u003c\/li\u003e\n\u003cli\u003eASME\u003c\/li\u003e\n\u003cli\u003eMIL-STD-2132 \u0026amp; 271\u003c\/li\u003e\n\u003cli\u003eNAVSEA 250-1500-1 \u0026amp; T9074-AS-GIB-010\/271\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Numbers \u0026amp; Packaging\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n\u003ccaption style=\"text-align: left; font-weight: bold; font-size: 1.2em; padding-bottom: 10px;\"\u003eMagnaflux 20B Part Numbers \u0026amp; Specifications\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f8f8f8; text-align: left;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eProduct Name\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eContainer Size\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePart Number (MPN)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSuspension\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMagnaflux 20B\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1 lb (453 g) Jar\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e01-0179-57\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e01-0179-57\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMagnaflux 20B\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCase of 6 × 1 lb Jars\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e01-0179-71\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e01-0179-71\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMagnaflux 20B\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e15 lb (6.8 kg) Pail\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e01-0179-70\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e01-0179-70\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMagnaflux 20B\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e30 lb (13.6 kg) Pail\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e01-0179-84\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e01-0179-84\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eMagnaflux 20B – Product FAQ\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is Magnaflux 20B?\u003c\/h3\u003e\n\u003cp\u003eMagnaflux 20B is a fluorescent magnetic particle premix powder designed for detecting fine discontinuities in ferromagnetic materials during non-destructive testing (NDT).\u003c\/p\u003e\n\n\u003ch3\u003eWhat types of defects can 20B detect?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInclusions, seams, laps, and flakes\u003c\/li\u003e\n\u003cli\u003eShrinkage, quenching, fatigue, and grinding cracks\u003c\/li\u003e\n\u003cli\u003eTears and welding defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials can be tested with 20B?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteel and iron alloys\u003c\/li\u003e\n\u003cli\u003eNickel alloys\u003c\/li\u003e\n\u003cli\u003eOther ferromagnetic materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I maintain suspension quality?\u003c\/h3\u003e\n\u003cp\u003eCheck particle concentration daily using an ASTM-compliant centrifuge tube (e.g., Magnaflux 8493). Replace suspension if contaminated or heavily used.\u003c\/p\u003e\n\n\u003ch3\u003eHow should I store 20B?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStore in a cool (50–86°F \/ 10–30°C), dry place\u003c\/li\u003e\n\u003cli\u003eKeep away from magnetizing equipment, heat, and sunlight\u003c\/li\u003e\n\u003cli\u003eSeal containers tightly to prevent moisture absorption\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Magnaflux","offers":[{"title":"1 lb.","offer_id":50461929832748,"sku":"01-0179-57","price":74.95,"currency_code":"USD","in_stock":true},{"title":"15 lb.","offer_id":50461929734444,"sku":"01-0179-70","price":872.0,"currency_code":"USD","in_stock":true},{"title":"Six - 1 lb.","offer_id":50461929767212,"sku":"01-0179-71","price":441.0,"currency_code":"USD","in_stock":true},{"title":"30 lb.","offer_id":50461929799980,"sku":"01-0179-84","price":1132.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0910\/1675\/7548\/files\/20b-wet-method-fluorescent-particles-15-lb-container-28.jpg?v=1748639369","url":"https:\/\/www.ndtsupplies.com\/products\/magnaflux-20b-fluorescent-magnetic-particles","provider":"NDT Supplies - Woodward Equipment","version":"1.0","type":"link"}