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FREE-SAT 7″ x 7″ Poly-cellulose Presaturated Wipers, 99% IPA / 1% DI Water

$20.25
(No reviews yet)
SKU:
FS-NT1-77.99 TUB
Availability:
7 - 10 Business Days
Shipping:
Calculated at Checkout
Quantity Option (Tub):
100 Wipes
Quantity Option (Case):
12 Tubs of 100 Wipes (1200 wipes)

FREE-SAT 7" x 7" Poly-Cellulose Presaturated Wipers — 99% IPA / 1% DI Water (Tub Wipes)

FREE-SAT 7" x 7" poly-cellulose presaturated wipers are high-strength, low-linting (no wiper is truly ‘zero-lint’ in every process condition) cleanroom wipes pre-wetted with 99% isopropyl alcohol (IPA) / 1% deionized (DI) water for fast-drying wipe-downs and “extra-strength” cleaning steps in controlled environments. Manufactured from a synergistic nonwoven blend of virgin polyester and cellulose, these presaturated IPA wipes are designed to be tough, abrasion resistant, absorbent, and virtually free of particle generation for many wipe processes. Each wipe features four clean-cut edges intended to reduce fiber contamination, making the 7" x 7" format a practical choice for benches, tools, equipment touchpoints, and day-to-day cleanroom and lab wipe-downs where repeatability and convenience matter.

Fast-dry IPA wipe note: The 99% IPA / 1% DI water saturation is widely selected when teams want aggressive, fast-evaporating wipe-down performance for residue removal and routine disinfection-adjacent cleaning steps (verify compatibility with your surfaces, coatings, labels, and SOP).

Specifications:
  • SKU: FS-NT1-77.99 TUB
  • Wipe size: 7" x 7" presaturated cleanroom wipes
  • Presaturated solution: 99% isopropyl alcohol (IPA) / 1% DI water
  • Material: Nonwoven poly/cellulose blend (virgin polyester + cellulose)
  • Edge construction: Four clean-cut edges designed to reduce fiber contamination
  • Cleanroom suitability: ISO 5–8 (Class 100–100,000) use environments (final suitability depends on your process and method)
  • Packaging option: Tub or Case
  • Tub unit: 100 wipes per tub
  • Case unit: 12 tubs of 100 wipes (1,200 wipes/case)
  • Traceability: Packaging marked for lot-to-lot traceability
  • Availability: 7–10 business days
  • Shipping note: Ground shipping only selection required (presaturated IPA wipe format)
About the Manufacturer: 

High-Tech Conversions is a global manufacturer of innovative cleaning products and cleanroom supplies founded in 1995, known for combining high quality, fair pricing, and converted-material innovation for industrial and controlled-environment wiping programs. With manufacturing facilities in the USA, China, Germany, and Mexico, High-Tech Conversions supports broad availability across multiple wipe formats, including presaturated IPA/DI water wipes designed for practical, repeatable wipe-down workflows.

 

SOSCleanroom (SOS) supports these wipe programs with dependable procurement, responsive customer service, and clean handling support so teams can standardize on a consistent presaturated wipe format with predictable replenishment.

FREE-SAT Features:
  • High IPA concentration (99%): Fast-drying cleanup and extra-strength wiping performance for many routine wipe-down steps
  • Presaturated convenience: Pre-wetted with IPA and DI water to reduce squirt-bottle variability and improve repeatability
  • Nonwoven poly-cellulose blend: Tough, absorbent, abrasion resistant wipe substrate for practical cleaning loads
  • Low particle generation design intent: Production approach described as extremely low particle generation and chemical extractables (process-dependent)
  • Four clean-cut edges: Designed to help reduce fiber contamination risk from cut edges
  • Resealable tub format: Bagged within a re-sealable container intended to preserve wipe integrity and saturation
  • Meets USP <797> and USP <800> wipe requirements: Manufacturer-stated alignment for compounding/support cleaning programs (use per your SOP)
  • Lot traceability: Packaging marked for lot-to-lot traceability
FREE-SAT Benefits:
  • Fast evaporation for throughput: 99% IPA format supports quick dry-down and reduced dwell time in many wipe-down workflows (surface dependent)
  • Repeatable wipe performance: Presaturation helps reduce operator-to-operator variability vs. manually wetting wipes
  • Strong, absorbent substrate: Polyester/cellulose blend supports tougher wipe loads and spill pickup (process-dependent)
  • Reduced fiber/particle risk by design: Clean-cut edges and low-generation intent help support controlled environments (results depend on your process)
  • Controlled program support: Lot traceability and tub dispensing support standardization and investigation workflows
Common Applications:
  • Wiping surfaces and equipment within a lab or controlled environment
  • Removing residues and films where IPA/DI water aids in cleanup (disinfectants, adhesives, residues, and similar process soils)
  • Cleaning notebooks, phones, and frequently touched supplies staged within the cleanroom
  • Routine wipe-downs of benches, carts, fixtures, tool handles, and equipment exteriors
  • Fast-dry wipe steps where a 7" x 7" format improves control and reduces incidental contact
Best-Practice Use:
  • Open-and-close discipline: Keep the tub closed between pulls to reduce IPA evaporation and maintain consistent wetness.
  • Fold for clean faces: Fold into quarters to create multiple clean faces; rotate faces instead of re-wiping with a loaded surface.
  • Wipe pattern: Use straight-line, overlapping strokes (top-to-bottom or left-to-right) to reduce re-depositing contamination.
  • Control wetness at sensitive features: “Presaturated” does not mean flooding—avoid over-wetting seams, joints, labels, electrical interfaces, and absorbent materials.
  • No re-dip rule: Do not add additional solvent to the tub or re-wet used wipes; replace wipes as they load to avoid smear and residue carryover.
  • Compatibility check: Verify 99% IPA compatibility with coatings, plastics, painted surfaces, adhesives, and printed markings before broad deployment.
Selection Notes (99% IPA / 1% DI Water vs. Other Options)
  • 99% IPA for fast dry-down: Choose this ratio when you want rapid evaporation and “strong” wipe-down action for many routine cleanup tasks (surface-dependent).
  • When to consider lower IPA blends: If your process needs longer dwell, more controlled wetting, or reduced surface stress on certain plastics/coatings, a lower IPA/DI water ratio may be preferred.
  • 7" x 7" control advantage: Smaller wipes are often selected for tight wipe points and touchpoints where control and reduced incidental contact matter.
  • Material fit: Poly/cellulose blends can be a strong choice for absorbency and toughness; for ultra-critical cleaning, programs may evaluate specialized cleanroom wipers aligned to tighter extractables/particle requirements.
  • Ground shipping requirement: Plan replenishment cadence around ground-only shipment constraints for presaturated IPA wipe formats.

Notes: Looking for qualification guidance on presaturated 99% IPA wipes (evaporation control, wipe path standardization, change-out triggers, and compatibility screening)? SOSCleanroom.com supports controlled-environment wiping programs with reliable inventory planning, fair pricing, and responsive customer service.

Product page updated: Jan. 6, 2026 (SOS Technical Staff)

© 2026 SOS Supply. All rights reserved.

The Technical Vault
By SOSCleanroom
99% IPA / 1% DI water — fast-drying wipe-down
7" x 7" tub format — grab, wipe, close the lid
Clean-cut edges to reduce stray fibers
Technical entry for: FREE-SAT 7" x 7" Poly-cellulose Presaturated Wipers — 99% IPA / 1% DI Water (FS-NT1-77.99)
FREE-SAT FS-NT1-77.99 presaturated wipes in tub
Tub/canister format (100 wipes per tub). Keep the lid closed between pulls to protect saturation.
Practical solutions in a critical environment

FREE-SAT FS-NT1-77.99 is built for the day-to-day moments that decide whether a controlled area stays controlled: quick wipe-downs of benches, carts, equipment touch-points, and cleanroom “support items” (like notebooks and phones) without mixing solvent bottles, spray triggers, and dry wipes. The wipe is prewetted with 99% isopropyl alcohol (IPA) / 1% deionized water (DIW) and packaged in a resealable tub so operators can pull one wipe, keep one hand free, and close the lid immediately.

Language note: customers often ask for “lint-free” wipes, but nothing is truly lint-free. The practical goal is low-linting performance that matches your surface sensitivity and acceptance limits. FS-NT1 uses clean-cut edges intended to help minimize stray fibers during use.

What is this wiper used for
  • Wiping surfaces and equipment within a lab or controlled environment (benches, carts, tool exteriors, enclosures).
  • Removing residues after disinfectant application (where your cleaning program calls for an IPA/DIW final wipe).
  • Spot cleaning adhesives, residues, and handling marks where a fast-drying solvent wipe is preferred.
  • Cleaning “support items” inside controlled spaces (phones, notebooks, clipboards) when permitted by facility rules.
  • Quick wipe-down tasks aligned to USP <797> / USP <800> handling expectations for wipes (confirm your facility’s workflow and documentation requirements).
Why should customers consider this wiper (bullets)
  • Fast-drying cleanup: 99% IPA is commonly selected when you want minimal dry-time on hard surfaces and fixtures.
  • One-step convenience: consistent wetting without spray bottles, squeeze bottles, or “too wet / too dry” variability.
  • Tough, absorbent poly/cellulose blend: designed to resist tearing while still absorbing and carrying soil away.
  • Clean-cut edges: intended to reduce the risk of long, stringy fibers associated with perforated edges.
  • Lot traceability callout: packaging is marked for lot-to-lot traceability (supportive when you need repeatability).
  • Published cleanliness metrics: typical NVR and typical ionic extractables are provided in the technical data sheet for qualification planning.
Materials and construction

The FS-NT1 substrate is a hydroentangled nonwoven made from a blend of polyester and cellulose (45% polyester / 55% cellulose is stated in the technical data sheet). In operator terms: polyester contributes wet strength and wipe integrity; cellulose contributes absorption and wipe “pickup.”

The wipe is supplied presaturated with IPA/DI water and packaged in a resealable tub format that supports quick pulls and helps limit evaporation when the lid is kept closed between wipes.

Specifications in context (include a table: Attribute vs SKU)
Attribute FS-NT1-77.99 (this SKU)
Wipe size 7" x 7"
Saturation 99% IPA / 1% DI water
Substrate / composition Hydroentangled nonwoven; polyester/cellulose blend (45% / 55% stated)
Edge construction Clean-cut edges (four edges; designed to reduce loose fibers vs perforated edges)
Basis weight 68 gsm (typical)
Thickness 0.30 mm (typical)
Absorbency capacity 288 mL/m² (IEST-RP-CC004.3, Sec 8.1; typical)
Absorbency rate 0.8 sec (IEST-RP-CC004.3, Sec 8.2; typical)
Packaging 100 wipes per tub; 12 tubs per case
Cleanroom class guidance ISO 5–8 use is stated for the product family (confirm with your facility’s classification and qualification expectations)
Specifications in context (what operators feel)

A 7" x 7" presaturated wipe is a “one-hand” format: it folds well, stays controllable, and is easy to rotate through clean faces. Basis weight and thickness matter because they influence how the wipe holds solvent, how it releases solvent to the surface, and whether it stays intact when you apply pressure. If your team is reworking wipe-down steps, start by standardizing folding, face-rotation, and “one wipe per zone” discipline.

Cleanliness metrics (include: “Typical ion extractables” table and “Typical NVR” table)

For qualification and troubleshooting, two metrics tend to answer the real questions: (1) what can rinse out of the wipe into your solvent (ionic extractables) and (2) what residue can remain after solvent evaporates (NVR). The values below are reported as typical test data in the FREE-SAT FS-NT1 technical data sheet (methods referenced to IEST practices). Treat these as qualification inputs—not as a substitute for your facility’s acceptance criteria.

Typical ion extractables (IEST-RP-CC004.3, Sec 7.2.2; values shown as mg/g)
Ion Typical value Notes
Chloride (Cl)0.0012 mg/gTypical
Sulphate (SO4)No detectionTypical
Sodium (Na)No detectionTypical
Potassium (K)No detectionTypical
Magnesium (Mg)0.0500 mg/gTypical
Calcium (Ca)0.0660 mg/gTypical
Typical NVR (IEST-RP-CC004.3, Sec 7.1.2; values shown as mg/g)
Extractant Typical NVR What it means in practice
DI water extractant 0.091 mg/g Baseline residue potential when water is the extracting medium (typical).
IPA extractant 0.431 mg/g Residue potential under IPA extraction (typical) — useful when your process is IPA-forward.
Extra qualification note (particles and organics)

The FS-NT1 data sheet also reports typical releasable particle counts and notes “no silicone oil, amide, or DOP detected” by FTIR (method references in the data sheet). If your program is optics- or analytics-sensitive, align your inspection method (light inspection, UV, gravimetric, surface NVR) to the risk you actually care about.

Packaging, sterility and traceability (must include COO if available)
  • Unit: tub/canister format; 100 wipes per tub.
  • Case: 12 tubs per case (12 x 100 wipes).
  • Reseal discipline: wipes are packaged to preserve saturation—close the lid after every pull to reduce evaporation and concentration drift.
  • Traceability: packaging is marked for lot-to-lot traceability.
  • Sterility: this SKU is not labeled sterile in the FS-NT1 data sheet; sterile variants exist under different SKUs. Confirm sterility requirements before use in sterile workflows.
  • Shipping constraint (IPA product): ground shipping only requirements may apply due to IPA classification (follow your site’s receiving and hazmat procedures).
  • Country of origin (manufacturer statement): not stated in source basis for this SKU.
Best-practice use (include “Operator-level swabbing technique module” bullets)

Presaturated wipes succeed or fail on operator discipline. The solvent is already controlled—your technique is what controls re-deposition, streaking, and cross-contact. Use the module below as a training template for wipe-down steps.

Operator-level wiping technique module (template)
  • Open–pull–close: open the tub, pull one wipe, close the lid immediately. This prevents the “last 20 wipes are dry” problem.
  • Fold for clean faces: quarter-fold to create multiple usable faces; rotate faces frequently. When a face loads, stop and rotate.
  • One direction + overlap: straight strokes with 25–50% overlap; avoid circles that smear residue unless you are intentionally loosening a deposit.
  • Wet edge control: keep the leading edge wet; if the wipe dries mid-pass, switch to a fresh wipe rather than scrubbing with a drying wipe.
  • Define a wipe zone: one wipe per defined area (example: one cart shelf, one bench quadrant, one hood exterior panel).
  • Avoid pooling on electronics: do not flood seams, vents, or connectors; wipe and then follow with a controlled dry-off step if required by your method.
  • Glove hygiene: if gloves contact dirty surfaces, change gloves before you wipe “clean” surfaces. The wipe can’t fix glove cross-contact.

Compatibility reminder: IPA can haze or craze some plastics, coatings, and elastomers. If you are standardizing this wipe for a new surface, run a short compatibility check (small hidden area, defined dwell time, defined wipe pressure) and document the outcome.

Common failure modes
  • Evaporation drift: lid left open leads to drier wipes and inconsistent cleaning performance; it can also concentrate residues in the remaining fluid.
  • Re-deposition: wiping too large an area with one wipe face smears dissolved soil back onto the surface.
  • Streaking after disinfectant: insufficient overlap or skipping a final controlled wipe step can leave visible streaks or “wipe marks.”
  • Wrong surface chemistry: IPA incompatibility with certain plastics/coatings causes haze, whitening, or surface tack.
  • Using a non-sterile wipe in a sterile workflow: sterility must match the application and your quality documentation (do not assume).
Closest competitors

The closest alternatives are other presaturated IPA cleanroom wipes in tub/canister or pouch formats. When comparing, focus on: (1) saturation control and packaging discipline, (2) published cleanliness metrics (NVR/ions/particles), and (3) whether your workflow requires sterile presentation.

  • ITW Texwipe TechniSat® (pre-wetted cellulose/poly blends, typically 70% IPA formats) — common choice for routine cleanroom wipe-down with strong documentation expectations.
  • ITW Texwipe PolySat® (pre-wetted synthetic options, including sterile variants) — used when sterility, synthetic substrate behavior, or specific packaging is required.
  • Kimtech/Kimberly-Clark pre-wetted wipes (selected formats) — often used in labs; confirm cleanliness metrics and packaging/traceability fit your program.
Critical environment fit for this wiper (include SOSCleanroom–ITW Texwipe relationship framing)

FS-NT1-77.99 fits well for controlled-environment wipe-down tasks where fast dry time and operator convenience matter—especially routine surface cleaning, equipment touch points, carts, and support items. The product description aligns the family to ISO 5–8 environments and calls out USP <797> and USP <800> wipe requirements; your facility should still confirm how that maps to your internal SOPs, disinfectant program, and documentation needs.

Where SOSCleanroom adds value is in program consistency. Many customers standardize critical wiping steps with ITW Texwipe because of documentation discipline and repeatability over time. SOSCleanroom’s long-standing relationship with ITW Texwipe is built around continuity of supply, consistent part numbers, and predictable documentation expectations. If your risk profile escalates (sterile workflows, higher ISO classification sensitivity, audit-heavy environments), SOSCleanroom can help you step into Texwipe options that better fit that requirement—without reinventing your cleaning method every quarter.

Quick selection checkpoint
  • If you need sterile presentation: this SKU is not labeled sterile—select a sterile-designated product and document it.
  • If residue limits are tight: use the NVR/ion data as an input, then qualify on your surfaces using your inspection method.
  • If operators complain about dry wipes: focus on open–pull–close training and tub placement (point-of-use matters).
SOSCleanroom note about SOP's (use the disclaimer text below)

The Technical Vault is written to help customers make informed contamination-control decisions and improve day-to-day handling technique. It is not your facility’s Standard Operating Procedure (SOP), batch record, or validation protocol.

Customers are responsible for establishing, training, and enforcing SOPs that fit their specific risks, products, equipment, cleanroom classification, and regulatory obligations. Always confirm material compatibility, cleanliness suitability, sterility requirements, and acceptance criteria using your internal quality system and documented methods.

If you adapt any technique guidance from this entry, treat it as a starting template. Your team should review and approve the final method, then qualify it for your specific surfaces, solvents, cleanliness limits, inspection methods, and risk profile. In short: use these best-practice suggestions to strengthen your SOPs—not to replace them.

Source basis (include manufacturer PDF links; prefer SOS-hosted PDF as stable reference + Texwipe.com PDF)
  • SOSCleanroom product page (FS-NT1-77.99 tub): https://www.soscleanroom.com/product/ppe/free-sat-7-x-7-poly-cellulose-presaturated-wipers-99-ipa-1-di-water/
  • Manufacturer/brand product page (FREE-SAT 99% IPA / 1% DIW, 7" x 7" tub): https://www.hospecobrands.com/products/hbg-products/wiping-solutions/free-sat-clean-cut-pre-saturated-wipe-7x7-100-tub-12-tubs-cs-1
  • Technical data sheet (FS-NT1 family; includes FS-NT1-77.99 packaging and cleanliness metrics; revision/date not stated in PDF): https://www.novatech-usa.com/pdf/FREE-SAT%20Datasheet.pdf
  • Alternate hosted copy of FS-NT1 technical data sheet (same family; includes FS-NT1-77.99): https://www.cleanroomsupplies.com/wp-content/uploads/2023/08/cleanroom-connection-fs-nt1-nonwoven-poly-cellulose-ipa-presaturated-wipes-tech-data-sheet.pdf
  • Standards/regulatory bodies (for program alignment, as applicable):
  • ISO: https://www.iso.org/standard/53394.html
  • FDA: https://www.fda.gov/
  • ASTM: https://www.astm.org/
  • IEST: https://www.iest.org/
SOS-hosted PDF copies are preferred for long-term stability. If you want SOSCleanroom to host a stable copy for FS-NT1, request it and we will update this Source basis accordingly.
SOSCleanroom is the source for this Technical Vault entry.
Briefed and approved by the SOSCleanroom (SOS) staff.
If you have any questions please email us at Sales@SOSsupply.com
Last reviewed: January 6, 2026
© 2026 SOSCleanroom