MR 670 F is a water-removable fluorescent penetrant that provides very high sensitivity (level 0.5) for surface defects such as cracks and pores. This penetrant belongs to Type I and is used in the inspection of metals. It shows indications in yellow and yellow-fluorescent color, suitable for use under UV light. The product is made with glycol as a carrier medium and is designed for standardized NDT processes.

Key features and benefits

• Very high sensitivity (0.5) according to EN ISO 3452-2: provides the ability to detect very small defects.

• Water-removable (remover: water), which simplifies cleaning and reduces the need for solvents.

• Yellow/yellow fluorescent indication under UV light, clear contrast in dark inspection conditions.

• Carrier medium: glycol, which provides good penetration and compatibility with most metals.

• Made for safe handling: store between +5°C and +45°C; best used between +10°C and +50°C.

• Good standard coverage: meets EN ISO 3452-2, ASME Code V Art.6, ASTM E165, RCC-M, PMUC and several relevant specifications.

• Long shelf life: approximately 3 years under appropriate storage conditions.

Technical specifications

• Type of penetrant: Type I fluorescent

• Sensitivity class: level 0.5

• Indication color: yellow and yellow fluorescent under UV light

• Carrier medium: glycol

• Operating temperature: approx. +10 °C to +50 °C

• Storage temperature: +5 °C to +45 °C

• Shelf life: at least 3 years under recommended storage conditions

Areas of application

• Inspection of metal parts, welds and components with requirements for high sensitivity to small surface defects

• When inspection takes place in the dark or under UV light

• Ideal where water can be used as a remover (not solvent-based removers)

• In standard NDT environments, laboratory and field, where process stability and documentation are important