Fisherbrand Fine Tip Black Lab Marking Pen Lot of 50 Marking Pens

Fisherbrand™ Fine Tip Lab Marking Pens, Black (13-379-4) – Bulk Lot of 50

The Fisherbrand™ 13-379-4 is a specialized, industrial-grade laboratory marking pen engineered to establish permanent, smearproof identification on slick and non-porous surfaces. Specifically designed to handle critical workflows within clinical, diagnostic, and research facilities, this pen utilizes a robust fine-tip felt matrix that delivers crisp, highly legible lines. Supplied as a bulk facility lot of 50 marking pens (typically managed as 5 standard packs of 10), this consumable is formulated with high-performance, fast-drying permanent black ink that remains highly stable when subjected to standard water, humidity, and alcohol exposures during routine laboratory manipulations.

Technical Performance & Design

• Damp-Surface Ink Adhesion: Formulated with a proprietary quick-drying ink chemistry engineered to write smoothly on cold, frosted, or damp substrates as easily as it writes on clean, dry surfaces.
• Smear-Resistant & Alcohol-Defensive Matrix: Once fully cured, the permanent black carbon ink provides advanced resistance against abrasion and water washes. It will not run, bleed, or blur when subjected to routine water or alcohol exposures during normal laboratory bench work.
• Multi-Substrate Permanent Bonding: Engineered to form a durable, permanent mechanical bond across challenging smooth laboratory surfaces, including rigid plastics, borosilicate glassware, metal sample racks, and porcelain or ceramic labware.
• Low-Odor Cleanroom Formula: The volatile carrier solvents are balanced to minimize unpleasant chemical fumes or pungent smells, ensuring comfortable use across enclosed fume hoods, biosafety cabinets, and smaller containment benches.

Product Specifications

• Model Number / Catalog No: 13-379-4 (Securline™ Specialized Lab Series)
• Primary Manufacturer: Thermo Fisher Scientific / Fisherbrand™
• Ink Color Chemistry: Permanent Carbon Black
• Tip Style Architecture: Fine Tip Felt Nib (Optimized for standard labeling text and numbers)
• Sterility Baseline: Non-Sterile / Latex-Free Construction
• Application Suitability: Permanent marking on plastic microtubes, glass beakers, metal cassettes, and porcelain labware
• Packaging Configuration: Bulk Lot of 50 Marking Pens (Arranged as 5 packs of 10 individual pens)

Key Benefits & Applications

• General Specimen Bottle Labeling: Perfect for marking batch descriptions, concentration values, and safety codes on plastic solution bottles and glass media jars, resisting accidental running from accidental drips.
• Cold-Storage Tube Documentation: The advanced damp-surface ink allows reliable writing directly on microcentrifuge tubes or cryo-vials right out of ice buckets or cold refrigeration units without bleeding.
• High-Volume Inventory Allocation: Providing a full lot of 50 writing instruments ensures centralized laboratory desks, analytical stations, and cleanroom gowning stations remain completely stocked to prevent cross-contamination from shared pens.
• Histology and Slide Etching: Offers distinct, permanent lines on frosted edges of microscope slides and polymer embedding cassettes, ensuring clear specimen tracking across multi-step staining protocols.

Fisherbrand™ and Securline™ are commercial trademarks of Thermo Fisher Scientific Inc. Part number 13-379-4 specifies the standard fine-tip black ink variant. For highly specialized histology loops involving intensive xylene or acetone clearance baths, specialized chemically resistant embedding markers must be substituted.