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Liquid Penetrant Inspection

Liquid penetrant inspection relies on a fluorescent or visible dye penetrant seeping into a flaw such as a lap, seam, fracture, or crack. This forms a surface indication that can be evaluated under special lighting. The inspection provides information about the shape and size of any defects that are open to the surface. LTI has been performing nondestructive liquid penetrant testing services in Philadelphia since 1984.

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Liquid Penetrant Inspection at LTI

Liquid penetrant testing, also known as  fluorescent penetrant inspection or dye penetrant testing, is reliable for detecting surface-breaking flaws in materials with a non-porous surface, such as metals, plastics, glass, and ceramics.

LTI performs liquid penetration testing by first coating clean test pieces with a fluorescent or red visible dye penetrant. The pieces are left to sit, allowing the penetrant to have appropriate dwell time to soak into the flaws. After rinsing the test pieces, the penetrant is visible only in the areas with flaws.

Capabilities

  • Dye Penetrants – Magnaflux brand
    • Visible – water-washable and solvent removable
    • Fluorescent – water-washable, post-emulsified and solvent removable
  • Products Tested – metals, plastic, glass and other non-porous materials
  • Size Availability – ability to test materials up to 35 feet long
  • Certified PT Level 2 inspectors evaluate all test results
  • Two ASNT certified PT Level 3 examiners full-time on staff
Liquid Penetrant Inspection

Specifications

  • ASTM E1417
  • ASTM E165
  • ASTM F601
  • MIL-STD-6866
  • MIL-STD-271 and NAVSEA T9074-AS-GIB-010/271
  • MIL-STD-2132
  • Boeing BSS 7039, DPS 4.707, and HP6-13
  • Pratt & Whitney FPM
  • GE Aerospace P3TF47
  • Bell Helicopter BPS 4089

The LTI Advantage

LTI’s liquid penetrant testing department can inspect products up to 35 feet long, such as pipe, tubing, and bar stock. Our lab has three large penetrant dip tanks, a 35-foot dwell tank, and a large inspection room with three high-intensity black lights for viewing the fluorescent dye penetrant.

  • “...thank the team at LTI for all of your expedited help.”

    I just wanted to thank the team at LTI for all of your expedited help in getting our order inspected. We were able to deliver these items to our customer on time and with all required documentation. Look forward to our continued partnership in the future.

    Quality Assurance Manager

    Aerospace and Defense Fabricator

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    Laboratory Testing Inc. has the capacity and capabilities to handle all your material testing needs in a single location. Since 1984, we’ve aided customers worldwide with accurate nondestructive testing and precise material lab services. Request a quote or contact us today to see how our industry-leading turnaround times can keep your mission-critical approvals moving forward.

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