TX8941P is a pre-wetted, sealed-edge polyester cleanroom wiper built for controlled, repeatable solvent wiping when “spray-and-wipe” variability is not acceptable. The wipe is supplied with a defined wetness level using 0.2 μm filtered 100% semiconductor grade IPA, then packaged to preserve that wetness so operators can standardize wipe behavior shift-to-shift.

In practice, this SKU is selected when fast dry-down and minimal water content matter: residue removal, surface prep, and final wipe steps on sensitive assemblies where you want predictable solvent delivery without open bottles, secondary dilution risk, or inconsistent VOC load.

Controlled solvent wiping in ISO-classified cleanrooms: removing oils/films, lifting process residues, applying/removing solutions, and performing fast-evaporation wipe-downs on tools, work surfaces, fixtures, and components when you need repeatable solvent loading and sealed-edge substrate discipline.

Treat TX8941P as a “process control” purchase more than a commodity wiper. These are the drivers that typically decide whether it is the right fit:

• 100% IPA (minimal water content): Selected when rapid dry-down and aggressive solvent action matter, and when added water can leave haze, slow evaporation, or create compatibility issues.
• Sealed-edge strategy: Edge sealing reduces edge fray pathways that can become the dominant source of released fibers during aggressive wiping and refolding.
• Repeatable wetness and VOC behavior: Pre-wetting in controlled conditions reduces operator-dependent saturation variability and helps stabilize wipe outcomes.
• Traceability and program control: Lot coding and documented platform controls support deviation investigations, change control, and audit readiness.
• EHS and transport realities (hazmat): Pre-wetted 99%–100% IPA wipes are managed as a flammable-hazard product class; shipping, storage, ventilation, ignition control, and waste streams must align with site rules.

TX8941P uses a 100% polyester wipe with a sealed edge. Mechanically, edge sealing is not cosmetic: most wipers fail “cleanliness in use” at the boundary where repeated folding and abrasion concentrate stress. A sealed edge is designed to keep that boundary from becoming a filament-release zone during real wiping.

Polyester also brings chemical resistance for common cleanroom solvents and good abrasion tolerance for tool wipe-downs and contact with rougher surfaces, where weaker constructions can snag and shed.

Size: 9" x 9" nominal (23 cm x 23 cm). Format: pre-wetted wiper in a reclosable bag. Packaging: 75 wipers per bag; 4 bags per case (300 total). Edge: sealed edge. Cleanroom environment: positioned for ISO Class 3–8 use (typical program range). Solution: 0.2 μm filtered 100% IPA, selected when you want fast dry-down and minimal water content.

For “how it behaves,” the platform’s typical physical characteristics help explain why operators like it for controlled wipe-down: sorptive capacity ~330 mL/m², sorptive rate ~0.5 seconds, and basis weight ~120 g/m² (typicals). These values influence how quickly the wipe loads/unloads solvent and whether it stays “wet enough” across a pass without flooding the surface.

For wipe programs, contamination metrics are most useful as comparative baselines (incoming control) and as inputs to validation/qualification, not as guarantees in every use case. The published values below are typical analyses tied to established cleanroom wiping test frameworks.

Typical particle/fiber release (dry substrate metrics): LPC ≥0.5 μm: 11.7 x 10⁶ particles/m²; fibers >100 μm: 700 fibers/m².
Typical nonvolatile residue (NVR): IPA extractant: 0.05 ppm; DIW extractant: 0.02 ppm.
Typical ionic extractables: sodium 0.10 ppm; potassium 0.03 ppm; chloride 0.05 ppm.

The published framework references IEST-RP-CC004.3 for evaluating wiping materials and ASTM E2090 for size-differentiated particle/fiber counting, which is the level of method traceability most quality teams want when they are comparing platforms or tightening incoming specs.

TX8941P is supplied in reclosable slider bags intended to reduce evaporation and preserve consistent wetness. Platform guidance also publishes ambient storage conditions (59°F–86°F / 15°C–30°C) and a stated three-year shelf life for non-sterile pre-wetted variants—controls that matter when you are managing expiry, lot traceability, and wipe performance consistency across multiple users.

Because this is a 99%–100% IPA pre-wetted wipe class, sites typically align storage and use with flammable-material controls (ventilation, ignition source control, closed containers, and defined waste handling). SOSCleanroom also enforces hazmat shipping requirements consistent with those realities.

Pre-wetted wipes perform best when you treat wiping as a controlled removal process (direction, overlap, refolding discipline) rather than a scrubbing event:

• One direction, controlled overlap: Wipe in a single direction with consistent overlap to avoid re-depositing dissolved residue back onto the cleaned area.
• Refold early and often: Define a refold cadence (for example, after each defined surface area) so you are always presenting a clean face to the surface.
• Two-pass logic for residues: First pass dissolves/loosens; second pass (fresh wipe face) captures and removes. With 100% IPA, work efficiently before the surface flashes dry.
• Do not “top off” from open bottles: If wetness needs adjustment for a validated process, control it with approved dispensing methods and documented concentrations—not ad hoc additions.
• Waste handling is part of the process: Dispose in approved closed containers for solvent-contaminated wipes per site EHS rules.

The most common field issues are not “bad wipes,” but uncontrolled technique or uncontrolled solvent behavior: streaking from re-deposition (too few refolds or back-and-forth wiping), inconsistent cleaning from wetness drift (bag left open, poor reseal discipline), haze from dissolved residue drying back onto the part (no second-pass capture), and particle increases from overly aggressive abrasion on rough surfaces. In audit settings, the other failure mode is documentation: if lot, storage, and expiry controls are not defined, you cannot reliably distinguish a process issue from a consumable-control issue.

Berkshire SatPax MicroSeal-VP (100% IPA option): A sealed-edge polyester presaturated platform positioned for ISO Class 3 and above use, often compared when customers are matching edge-control strategy and high-criticality solvent wiping.

Contec PROSAT and related presaturated families (commonly 70/30 IPA/DIW; sterile options): Frequently evaluated as process alternatives when programs prioritize sterile presentation, different substrates, or different solvent blends. Not “equivalent” to 100% IPA platforms, but relevant when the decision driver is validation model, sterility, or solvent blend control rather than strictly water-minimized dry-down.

TX8941P typically sits in the “solvent-controlled wipe-down” lane: tool wipe-down before entry, in-process residue removal, and final wipe steps where rapid IPA evaporation supports throughput and reduces water-driven variability. It is also aligned to programs that use published method frameworks (IEST/ASTM) and require packaging discipline, traceability, and controlled storage/expiry for audit readiness. The TexVantage platform is also positioned as meeting USP <797> and USP <800> wiper requirements, making it a common evaluation item in compounding-related environments when non-sterile pre-wetted formats are appropriate to the site’s control strategy.

• SOSCleanroom product page: Texwipe TX8941P TexVantage 9" x 9" Polyester Cleanroom Wiper Pre-Wetted 100% IPA — https://www.soscleanroom.com/product/wipers/texwipe-tx8941p-texvantage-9-x-9-polyester-cleanroom-wiper-pre-wetted-100-ipa/
• Texwipe product page: TexVantage™ Polyester TX8941P Pre-wetted Cleanroom Wipers, Non-Sterile — https://www.texwipe.com/texvantage-polyester-tx8941p-pre-wetted-cleanroom-wipers-non-sterile-copy
• Technical data sheet (SOS-hosted PDF): TexVantage™ Polyester Dry | Pre-Wetted (Performance Characteristics table; IEST/ASTM references) — https://www.soscleanroom.com/content/texwipe_pdf/Texwipe-TexVantagePolyester-TDS-ENG.pdf
• Technical data sheet (Texwipe PDF): TexVantage™ Polyester Dry | Pre-Wetted — https://www.texwipe.com/images/uploaded/documents/Wipers/Texwipe-TexVantagePolyester-TDS-ENG.pdf
• Safety data sheet (Texwipe PDF): Texwipe® Pre-sat wipers 99% - 100% IPA (includes TX8941P in product codes) — https://www.texwipe.com/images/uploaded/documents/Safety%20Data%20Sheets/2023%20wipe%20sds%20us-can-mex/99-100/TX1012P_US_CA_SDS_ENG_May_31_2023.pdf
• Berkshire competitor reference: SatPax® MicroSeal®-VP 9 x 9 100% IPA — https://berkshire.com/shop/presaturated-cleanroom-wipes/ipa-wipes-isopropyl-alcohol/resealable-pouch-wipes/satpax-microseal-vp/spxmsvp0028/
• Contec presaturated wipe families (category reference): Cleanroom Wipes — https://cleanroom.contecinc.com/products/wipes