Smart Choice WCP40 White Contrast Background
Smart Choice WCP40White Contrast Background
MR® SmartChoice WCP40 is an exclusive edition by MR® Chemie for sale in select channels only. WCP40 is a cost-effective, quick-drying coating designed specifically for non-fluorescent magnetic particle inspection. It creates a smooth, white, opaque film on the test surface, providing a high-contrast background that significantly enhances the visibility of magnetic particle indications. The bright white finish ensures excellent clarity, making defects more noticeable and improving detection sensitivity. SmartChoice WCP40 dries quickly when applied evenly, resists flaking, and delivers reliable performance, offering an economical solution without compromising on quality.
| SKU | Pack Size | Case Size |
|---|---|---|
| 2511-0124 | Aerosol 400ml | 10 |
- White contrast background for magnetic particle inspection
- Carrier medium Ketone
- Dries quickly
- Very good adhesion to all materials
- High covering capacity Forms a smooth, white film
Additional information
| Properties | Appearance – white volatile liquid Chemical Composition – mixture of solvents & white pigments Basis – solvents Odour – characteristic |
| Approvals | EN ISO 9934-2 ASTM E709 ASME B & PV Code; Sec V ASME Code V; Art. 7 |
| Recommended Usage | NDT Method – Magnetic Particle Testing Area Coverage ~ 6 sq m (400ml nett Aerosol can) ; ~ 19 sq m (1 L) Storage: +5°C - +45°C Application: -10°C to +50°C |
| Reference Test Blocks | Reference test block 1 & 2 ASTM test block |
Family Testing
GHS Category
| Bulk | Aerosol |
|---|---|
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FAQs
Penetrant testing, also known as dye penetrant inspection, is a non-destructive testing (NDT) technique used to detect surface-breaking defects such as cracks, porosity, laps, and seams on the surface of solid materials.
White contrast paint is a type of paint used in Magnetic Particle Inspection (MPI) to create a visible contrast between the surface being inspected and any potential cracks or defects. The paint is usually white in colour and applied in a thin layer over the surface being inspected.
White contrast paint works by creating a background colour that is different from the colour of the magnetic particles used in MPI. When a magnetic field is applied to the surface being inspected, any cracks or defects in the material will cause the magnetic particles to collect in those areas, forming a visible indication against the white background.
The advantages of using white contrast paint in MPI include improved visibility of any potential cracks or defects, particularly in materials with a dark surface. The contrast paint also helps to enhance the sensitivity of the inspection, making it easier to detect smaller defects. It offers an optimum layer thickness ensuring better sensitivity using the magnetic particle suspensions.
Some potential disadvantages of using general white contrast paint include the need for additional preparation time to apply the paint, and the potential for the paint to obscure small defects or make it more difficult to distinguish between cracks and surface irregularities. Also, the thickness of the paint varies that hampers the sensitivity of the magnetic suspension.
MR Chemie has a variety of paint depending on the ease of removability, application, solvent versions and country.
White Contrast Paint can easily be removed using our paint remover MR® 71 or MR®79
A single coat of Smart Choice WCP40 offers a layer thickness of 6-8 microns.