MFX01-1580-78 - Magnaflux 7HF Oil-Based Visible Magnetic Particle Suspension Aerosol (Case of 12)

High-Sensitivity Magnetic Particle Inspection

The Magnaflux 7HF Oil-Based Visible Magnetic Particle Suspension is a premier solution for non-destructive testing (NDT) professionals requiring reliable detection of discontinuities in ferromagnetic materials. Formulated with Magnavis 7C magnetic powder suspended in a low-volatility mineral oil (Carrier II), this aerosol product is designed to identify fine and medium discontinuities on finished parts. Its oil-based composition ensures excellent particle mobility and stability, allowing the magnetic particles to migrate freely to leakage fields caused by surface and near-surface defects.

Engineered for versatility and compliance, 7HF meets a broad range of rigorous industry standards, including ASTM E1444, ASTM E709, ASME BPVC, and NAVSEA specifications. This makes it an essential consumable for aerospace, automotive, and heavy industrial inspections where adherence to code is mandatory. The aerosol format provides a consistent and controlled spray pattern, ensuring uniform coverage even on complex geometries like machined parts, tubing, and structural welds. By providing high-contrast indications, 7HF enables inspectors to make critical pass/fail decisions with confidence.

Optimized for Field and Spot Inspections

One of the primary advantages of the Magnaflux 7HF is its portability and ease of use in field environments. Traditional bulk processing can be impractical for in-service inspections or large structures that cannot be moved to a testing facility. The 16oz aerosol cans allow technicians to perform spot inspections on-site, whether on a pipeline, a bridge, or inside a pressure vessel. The wide spray pattern facilitates faster processing of large surface areas, reducing inspection time without compromising sensitivity.

For optimal results, 7HF is often used in conjunction with WCP-2 White Contrast Paint. The white background enhances the visibility of the black magnetic particles, creating a sharp contrast that makes even the finest fatigue cracks, grinding cracks, and seams clearly visible to the naked eye. This combination is particularly effective for inspecting dark surfaces or rough welds where indications might otherwise be difficult to interpret. This product is supplied as a case of 12 cans, ensuring a steady supply for high-volume inspection tasks.