Magnaflux MV-740 Water-Based Visible Magnetic Particle Suspension
Magnaflux MV-740 is a highly sensitive, water-based magnetic particle suspension for non-fluorescent (visible) wet method magnetic particle testing. Designed to locate fine and medium discontinuities on finished parts, MV-740 delivers clear, strong black indications due to heavy buildup of highly magnetic particles — no UV light or darkened inspection booth required. Ready-to-use straight from the aerosol, no dilution needed.
MV-740 is often used with WCP-2 white contrast paint to maximize contrast and inspection sensitivity on dark or rough surfaces.
Key Benefits
Eco-Friendly Profile
- Environmentally-friendly water-based formula — no hydrocarbon chemicals released to the atmosphere
- Bulk packaging made from post-consumer recycled plastic, recyclable after use
- Both bulk and aerosol formats have a reduced environmental footprint vs. oil-based carriers
Maximum Application Versatility & Indication Detection
- Heavy buildup of highly magnetic particles creates high-contrast indications, especially when paired with WCP-2 white contrast paint
- Inspect in all lighting conditions — no UV light or darkened booth required
- Performs at temperatures below freezing — ideal for cold weather field inspections
- Portable aerosol format is ready to use out of the box at any job site
- Inspect a wide range of components without concerns about corrosion or specification non-conformance
Features
- Ready-to-Use: No dilution or mixing required — use straight from the aerosol
- Clear Visible Indications: Strong black particle buildup visible under white light
- Heavy Particle Buildup: Enhanced contrast for reliable defect identification
- Great Particle Mobility: Rapid movement to discontinuities for fast indication formation
- Corrosion Protection: Protects parts and equipment against rust and corrosion
- Optimized Surface Wetting: Thorough surface contact for reliable inspections
- Water-Based Formula: Low odor, eco-friendly, no flammability concerns
- Sub-Zero Performance: Works in visible light at temperatures below freezing
Pair with WCP-2 for Maximum Sensitivity: On dark, scaled, or rough surfaces, apply a thin coat of Magnaflux WCP-2 White Contrast Paint before applying MV-740. The white background dramatically increases the visibility of black particle indications. MV-740’s water-based formula also makes it the preferred choice over oil-based suspensions in environments where flammable carriers are restricted or where post-inspection water cleanup is required.
Applications
- Field inspection and spot-checking of finished parts
- Weld inspection in fabrication, maintenance, and field environments
- Cold weather inspections where oil-based carriers may congeal
- Environments where flammable carriers are restricted
- Inspections where UV light or darkened booths are unavailable
- Components requiring post-inspection water cleanup
Specifications
Product Name: Magnaflux MV-740 Water-Based Visible Magnetic Particle Suspension
NDT Method: Magnetic Particle Testing, Nonfluorescent / Visible, Wet Method
Suspension Vehicle: Water-based
Indication Color: Black under visible light
Dilution: Ready-to-use, no dilution required
Required Equipment: Magnetizing device
Brand: Magnaflux
Part Numbers & Packaging
| Product Name | Package Size | Part Number (MPN) | SKU | Suspension |
|---|---|---|---|---|
| Magnaflux MV-740 | Case of 12 × 12.2 oz. Aerosols | 01-9140-78 | 01-9140-78 | Water-Based |