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age_group:
18+
category:
Stationery
country_of_origin:
USA
gender:
Unisex
manufacturer:
Specialty Optical Systems / SOS Cleanroom
mpn:
PEN-20-25IR
sub_brand:
MICRONOVA
type:
Stationery
Product Description
Micronova Cleanroom Irradiated Sharpie® Fine Point Markers — Gamma Irradiated, Black/Blue/Red Ink Options (12 Markers/Bag)
Cleanroom Irradiated Sharpie Markers are gamma-irradiated Sharpie® fine point permanent markers configured for controlled-environment documentation, container labeling, equipment tags, and non-critical surface marking where technicians need a familiar permanent mark that dries quickly. Micronova specifies a high-density poly barrel with a non-toxic, alcohol-based ink system; the marker is offered in capped and retractable styles and is intended for Aseptic ISO 5 and other clean production areas.
SOSCleanroom (SOS) has been a proud distributor of Micronova for over 15 years supporting critical environments. That relationship matters when you standardize cleanroom stationery: it supports continuity of supply, stable product lineage, and fast access to manufacturer documentation for QA/QC review and change-control.
SOSCleanroom (SOS) has been a proud distributor of Micronova for over 15 years supporting critical environments. That relationship matters when you standardize cleanroom stationery: it supports continuity of supply, stable product lineage, and fast access to manufacturer documentation for QA/QC review and change-control.
Published configuration
- SOSCleanroom SKU: PEN-20-25IR
- Unit of measure (as sold): Bag
- Bag unit: 12 markers per bag
- Ink color options: Black, Blue, Red
- Style options: Capped (standard) or Retractable (optional click version)
- Marker type: Sharpie® Fine Point permanent marker
- Materials (as published by Micronova): High-density poly barrel; non-toxic alcohol-based ink
- Dimensions (as published by Micronova): Capped versions (PEN-20IR / PEN-22IR / PEN-23IR series) 6" x 1/2"; Retractable versions (PEN-25IR / PEN-26IR / PEN-27IR series) 7" x 1/2"
- Irradiation (as published by Micronova): Minimum irradiation dose 25 kGy (optional, as published)
- Clean production suitability (as published): Suitable for Aseptic ISO 5 and other clean production areas
- Autoclave: Not autoclavable
Practical cleanroom use guidance (technicians and engineers)
- Bring-in discipline: Introduce the markers in original clean packaging. If your SOP requires wipe-down, wipe the outer packaging first and allow dry time before opening inner packaging to reduce moisture-driven smearing and transfer.
- Dry-time control: Permanent marker ink can transfer when surfaces are touched too soon. Write, pause, then handle; this is especially important with gloved hands and on smooth plastics.
- Segregate documentation tools: Keep markers in a dedicated, clean pouch or bin. Avoid setting markers directly on critical product-contact surfaces, open assemblies, or wiped-down benches.
- Tip hygiene: Do not touch the tip to gloves, garments, or wipers before writing. Cross-contact is a common cause of residue carryover and inconsistent marks.
- Color standardization: If your site uses color as a control (status labels, line clearance, maintenance tags), standardize color meaning and keep spare colors controlled to prevent mix-ups.
Compatibility and wipe-down notes
- IPA / disinfectant wipe-down tolerance (as published by Micronova): Holds up to wipe down with IPA, bleach, and phenols.
- Strong solvent caution (as published by Micronova): Integrity of the printed barrel will be compromised with thinners and strong solvents.
- DI water / aqueous wipe-down: Not stated in the published Micronova product specification for this marker. If your program requires aqueous wipe-down, qualify under your site conditions before standardizing.
- Autoclave / steam exposure: Not autoclavable (use stationery that is explicitly rated for autoclave cycles when required by the program).
Common failure modes
- Smearing / ink transfer: Most often caused by writing on damp surfaces, handling before dry time, or solvent-wet gloves. Prevent with dry-time discipline and glove moisture control.
- Residue carryover: Contact with adhesive residues, disinfectant films, or glove contaminant can make marks inconsistent and can transfer to other surfaces. Prevent by using a dedicated “documentation-only” marker and keeping tips off benches and wipes.
- Barrel marking degradation: Strong solvents/thinners can compromise printed barrel information. Prevent by limiting exposure to aggressive solvents and following site-approved wipe-down chemistry.
- Static attraction and debris pickup: In low humidity, plastic barrels can tribocharge and pick up fines from work areas. Prevent by avoiding unnecessary rubbing against garments and following site ESD/housekeeping controls.
Storage and handling best practices
- Keep markers in original clean packaging until introduced into the controlled area.
- Store closed/capped and segregated from abrasive tools and clips that can create debris and contaminate tips.
- Transport in a clean pouch or drawer; avoid carrying loose markers in pockets where tips can pick up fibers/particles from garments.
- Rotate stock and keep lot/case information with incoming inspection records when your program requires documentation traceability.
Documentation
SOS-hosted Micronova product specification (Sharpie Marker, Irradiated): Not available
Micronova product specification PDF (Sharpie Marker, Irradiated; Revision 001): Click Here
Micronova manufacturer page (Irradiated Sharpie Marker): Click Here
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