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Unitek 22lbs Cleanroom Paper 8.5" x 11"

Unitek 22lbs Cleanroom Paper 8.5" x 11"

$168.57
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SKU:
CRP0760-3
Availability:
7 - 10 Business Days
Shipping:
Calculated at Checkout
Quantity Option (Case):
10 Packs Per Case (250 Sheets Per Pack)
Unitek CRP0760-3 Clean-Write® 22 lb Cleanroom Paper — 8.5" x 11" Loose Sheets (250 sheets/pack; 10 packs/case)
CRP0760-3 is saturated-cellulose cleanroom paper for technician documentation inside controlled environments where office-grade paper creates avoidable paper dusting, residue, and particle-shedding risk. It is intended for batch/lot travelers, equipment logs, inspection checklists, maintenance notes, QA/QC sign-offs, and process documentation that must stay legible and contamination-aware at the bench. The Clean-Write® construction is manufactured with a cellulose base sheet saturated with synthetic latex to substantially reduce particle generation associated with standard papers while supporting practical printer/copy workflows.

Use this product when you want to standardize documentation flow into and within cleanrooms: cleanroom-packaged stationery helps reduce uncontrolled fibers, debris, and handling variability that can show up as rework, smears, or foreign material during reviews.
Published configuration (CRP0760-3)
  • SOSCleanroom SKU: CRP0760-3
  • Sheet size: 8.5" x 11"
  • Paper weight class: 22 lb (Sub 22.5 as published in technical data)
  • Construction: Cellulose base paper saturated with synthetic latex (saturated cellulose documentation sheets)
  • Quantity (pack): 250 sheets per pack
  • Quantity (case): 10 packs per case (10 reams/case as published)
  • Colors available (as listed on SOSCleanroom): Blue, Green, Pink, White, Yellow
  • Colors available (as published in Unitek documentation for CRP0760-3): White, Blue, Yellow, Pink (green not stated)
  • Cleanroom packaging: Cleanroom packaged (as published)
  • Printer/copier compatibility: Compatible with all laser, inkjet, and toner-based printers (as published)
  • Handling/performance notes: Tear resistant and durable; smear resistant (as published)
Low particle generation — and the reality check
This paper is designed to substantially reduce particle generation versus standard papers for cleaner documentation in controlled environments. Even so, no paper product is truly zero-shedding in real operations. Treat cleanroom stationery like a contamination-controlled component: control how it is introduced, how long it stays exposed, and what touches the sheet during use.
Practical cleanroom use guidance (technicians and engineers)
  • Open-stack control: Do not fan sheets. Fanning and edge-tapping are common causes of paper dusting and particle mobilization.
  • Documentation-only zone: Keep paper off critical product surfaces. Use a dedicated clipboard/binder station so sheets do not pick up residues from benches.
  • Glove discipline: Keep gloves dry. Solvent-wet or DI-wet gloves are a primary driver of smearing, ink transfer, and edge softening.
  • Controlled handling: Lift sheets cleanly; avoid sliding across rough benches or garments, which can shed fines and abrade edges.
  • Printer/toner qualification: If printing inside controlled areas, qualify the printer and consumables to avoid toner dust and uncontrolled residues that can defeat the purpose of cleanroom paper.
Compatibility and wipe-down notes
  • IPA exposure: Typical non-volatile residue (NVR) is published for isopropyl alcohol; practical wipe-down tolerance of loose sheets is not published. If your SOP requires IPA contact, qualify for legibility and smearing under your dwell time and handling method.
  • DI water / aqueous exposure: Typical NVR is published for deionized water; practical wipe-down tolerance is not published. Validate for swelling, wicking, and residue/transfer risk before standardizing aqueous handling.
  • Wipe-down technique (if permitted by your SOP): Avoid saturating sheet edges and corners. Edge-wicking can soften fibers and increase paper dusting during handling.
Typical performance characteristics 
These are published as typical analyses (not specifications) to support qualification planning and contamination-risk reviews.
Property Typical value Test method (as published)
Basis weight 51.0 (#/3000 ft²), Sub 22 (Sub 22.5 class) Not stated
Caliper 4.7 mil Not stated
Tear strength MD 105 g; CD 95 g Not stated
Tensile strength MD 36 #/in; CD 32 #/in Not stated
Elongation MD 3%; CD 8% Not stated
Mullen burst 50 psi Not stated
Internal bond 13 oz/in Not stated
Porosity 5 seconds Not stated
Typical contamination characteristics 
These are published as typical analyses (not specifications) to support qualification planning and contamination-risk reviews.
Property Typical value Test method (as published)
Extractible ions in deionized water (ppm) — Chloride 142.0 ppm Not stated
Extractible ions in deionized water (ppm) — Potassium 60.3 ppm Not stated
Extractible ions in deionized water (ppm) — Sodium 284.0 ppm Not stated
Non-volatile residue (g/m²) — Deionized water 0.31 g/m² Not stated
Non-volatile residue (g/m²) — Isopropyl alcohol 0.63 g/m² Not stated
Non-volatile residue (g/m²) — Freon TF 0.32 g/m² Not stated
Dry particle generation (≥ 0.5 µm) Helme Drum Test (ft³) 24,772 IES-RP-CC-003-87T (as listed with Helme Drum Test)
Common failure modes 
  • Smearing / ink transfer: Usually driven by wet gloves, solvent contact, or stacking sheets before ink fully dries. Prevent with dry-glove discipline and controlled dry time before bundling.
  • Paper dusting / edge abrasion: Common with fanning, edge-tapping, and sliding sheets across benches. Prevent with stack control and lift-and-place handling.
  • Particle shedding from rough handling: Aggressive flipping, dragging corners, or rubbing against garments can mobilize fines. Prevent with controlled movements and dedicated staging surfaces.
  • Residue carryover: Transfer from benches, sleeves, or contaminated gloves. Prevent by keeping sheets out of process-contact zones and maintaining documentation-only handling.
  • Static attraction: In low humidity, paper can attract fines. Prevent by following site ESD controls and avoiding rubbing sheets against packaging or garments.
Storage and handling best practices
  • Keep paper in original cleanroom packaging until introduced into the controlled area.
  • Store flat and covered; avoid exposing open stacks to airflow where deposition and edge wear increase.
  • Avoid staging near spray-and-wipe activities or wet chemical zones to reduce wicking, smearing, and residue transfer.
  • Use controlled transport (folder/binder/clipboard station) to prevent corner damage and debris generation during movement.
Documentation 
SOS-hosted Unitek technical data sheet (CLEAN-WRITE PAPER, Product Code: CRP0760-3 / CRP0760-6): Click Here
Unitek / Total Source Manufacturing product page (Clean Room Paper — colors and sizes): Click Here
Manufacturer technical data (CLEAN-WRITE PAPER — Tech Data): Click Here
Manufacturer product sheet (Clean-Write Stationery — CRP0760-3 listing): Click Here
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