Kokuyo Research Lab Permanent Marker Pens

Kokuyo Research Lab Permanent Marker Pens 2-Pack

Designed for demanding scientific, clinical, and industrial environments, the Kokuyo Research Lab Permanent Marker Pens 2-Pack provides permanent, high-precision identification that withstands routine laboratory disinfection. Engineered and manufactured in Japan by Kokuyo, these specialized oil-based markers feature an advanced resin-bonded ink formulation that resists dissolution or smearing when exposed to alcohol, ethanol, and common sanitizing sprays. The durable 0.6mm fine bullet nib writes cleanly across challenging non-porous surfaces—including frosted glass slides, polypropylene microcentrifuge tubes, petri dishes, and cryovials—even in the presence of cold condensation or light moisture. Encased in a lightweight, chemical-resistant aluminum barrel, each two-pack contains one black and one red marker for crisp, legible sample color-coding.

Key Features

• Exceptional Alcohol & Ethanol Resistance: High-adhesion ink formula maintains sharp legibility even after direct contact with ethanol and laboratory cleaning solvents.
• Moisture & Condensation Writing Capability: Adheres reliably to cold, frozen, or condensation-covered sample containers straight out of refrigerators or freezers.
• Durable 0.6mm Fine Bullet Nib: Reinforced fine tip delivers crisp, compact lettering that fits comfortably on small microtube caps and vial labels.
• Lightweight Aluminum Construction: Professional aluminum barrel offers chemical resilience, comfortable handling, and anti-roll cap design.
• Black & Red Dual-Color Pack: Includes one black (PM-R100D) and one red (PM-R100R) marker for efficient sample identification and experimental labeling.

Specifications

• Brand: Kokuyo (Japan)
• Series: Research Lab Pen
• Model: PM-R100DR (PM-R100D Black + PM-R100R Red)
• Line Width: 0.6mm Fine Tip
• Ink Type: Alcohol-resistant oil-based permanent ink
• Barrel Material: Aluminum
• Dimensions: Ø11mm × 130mm | Weight: 9g per pen
• Country of Origin: Japan

Frequently Asked Questions

Q: Will ethanol wipes erase writing from this marker?
A: No. The Kokuyo Research Lab Pen is specifically formulated to resist ethanol and alcohol disinfection, preventing accidental erasure during laboratory sanitization.

Q: Can it write on cold microtubes taken directly from a freezer?
A: Yes. The specialized ink formulation is designed to write reliably on chilled surfaces and containers with slight condensation.

Q: What is your order cancellation and inquiry policy?
A: Full refunds and order cancellations are supported anytime prior to shipping confirmation. Pre-sale technical consultations are not supported; inquiries are handled promptly post-order. Contact us anytime at szjyf@outlook.com for order assistance.