MR 68 NF Penetrant Red & Fluorescent is a water and solvent removable penetrant that provides both visible red color and fluorescent indication. It meets the requirements for Type II and Type III penetrant testing with sensitivity level 2 according to EN ISO standards. The product is glycol based (oil-free), free of mineral oils and AZO dyes, and suitable for the inspection of metal surfaces.

Key features and benefits

• Visible red color and strong fluorescence under UV light, providing double indication and better defect visibility.

• Can be removed either with water or with solvent, which provides flexibility in inspection and cleaning procedures.

• Type II / Type III penetrant with sensitivity level 2 — can be used where moderate defect detection requirements apply.

• Carrier medium: glycol, which provides good penetration and is more environmentally friendly compared to heavy oils.

• Without mineral oil and without AZO dyes — in line with modern environmental and safety requirements.

Technical specifications

• Sensitivity class: level 2 according to EN ISO 3452-2. MR Chemie+1

• Temperature for use (working conditions): approx. –10 °C to +50 °C.

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

• Shelf life: minimum 3 years with recommended storage.

• Suitability: for metal surfaces; use on plastic or ceramics must be tested first.

• Approvals / standards: EN ISO 3452-2, EN ISO 3452-6, ASTM E165, ASME Code V Art. 6, VDA236-150, PMUC, TLV 9017-01.

Areas of application

• Surface inspection of welds, castings and metal components where visible red color and UV fluorescence provide better defect detection.

• Situations where flexibility in removal method (water or solvent) is important.

• Industrial environments where temperatures are moderate, from approximately –10°C to +50°C.

• When requirements for good sensitivity (level 2) and modern environmental and safety standards must be met.