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Met-L-Chek VP-30 | Water Washable Visible Red Penetrant
High-Sensitivity Surface Flaw Detection for Methods A & C
Met-L-Chek VP-30 is a versatile, deep-red visible penetrant designed for the detection of surface-breaking discontinuities such as cracks, laps, porosity, and laminations. As a Level 2 (Normal Sensitivity) penetrant, it offers a perfect balance between flaw entrapment and ease of removal. Its dual-method formulation allows for high-volume processing via water-wash (Method A) or precision field inspection using the solvent-wipe technique (Method C).
Key Performance Features
Vibrant High-Contrast Indication: Formulated with intense red dyes that produce sharp, easy-to-read indications against a white developer background, increasing the probability of detection (POD).
Dual-Method Versatility: * Method A (Water Washable): Features built-in emulsifiers that allow excess surface penetrant to be rinsed away with a coarse water spray, making it ideal for large parts or rough surfaces.
Method C (Solvent Removable): Can be wiped away using a solvent-moistened cloth (such as R-504) for localized inspections or when water is not available.
Superior Washability: Designed to rinse clean from the part surface without over-washing the flaws, reducing the occurrence of "background pink" and false indications.
Material Compatibility: Safe for use on most common industrial metals, including aluminum, magnesium, steel, and stainless steel.
Convenient Aerosol Delivery: The consistent pressure of the aerosol spray ensures a uniform, thin film application, preventing "puddling" and reducing material waste.
Technical Specifications & Compliance
| Feature | Specification |
| Product Type | Type 2 (Visible Red) |
| Methods | Method A (Water Wash) & Method C (Solvent Removable) |
| Sensitivity Level | Level 2 (Normal Sensitivity) |
| Aerosol Size | 16 oz. (400 ml) |
| Packaging | Case of 12 Cans |
| Flash Point | > 93°C (> 200°F) |
Industry Standard Compliance
VP-30 is listed on the QPL-AMS-2644 and is fully compliant with:
AMS 2644
ASME B&PV Code, Section V
ASTM E-165 & ASTM E-1417
ISO 3452
NAVSEA 250-1500-1
Physical Dimensions & Logistics
| Measurement | Dimension / Value |
| Can Dimensions (L x W x H) | 2.6" x 2.6" x 8.0" |
| Box Dimensions (L x W x H) | 11.0" x 8.5" x 8.5" |
| Shipping Weight | 12.0 lbs |
Ideal Applications
General Fabrication: Weld inspection on pressure vessels, tanks, and structural steel.
Maintenance & Overhaul: Checking for fatigue cracks in heavy equipment and automotive components.
Foundries: Surface inspection of raw castings and forgings.
Infrastructure: Inspection of bridge pins, beams, and large-diameter piping.