The Technical Vault
By SOSCleanroom
TX3042P sterile, pre-wetted Vertex® wiper: sealed-edge polyester knit control for repeatable 70% IPA wipe-downs
Last reviewed: Jan. 4, 2026 | Audience: contamination control, cleanroom operations, EHS, quality
Texwipe TX3042P is a sterile, sealed-edge, 12-inch by 12-inch (31 cm by 31 cm) 100% continuous-filament polyester knit wiper that ships pre-wetted with a controlled 70% isopropyl alcohol (IPA) / 30% water blend. In practice, this format reduces variability versus “spray-and-wipe” by fixing wetness at the point of use, tightening solvent exposure, and improving repeatability for documented cleaning steps.
If your process lives or dies on consistent surface condition (tooling wipe-downs, pass-through wipe prep, final wipe after disinfection, and solvent-based residue removal), TX3042P is built for control: sealed edges to reduce edge-shed risk, sterile validation at a 10-6 sterility assurance level (SAL), and packaging designed to help maintain consistent wetness and traceability lot-to-lot.
What it’s for
Validated, repeatable wipe-downs where you want a sterile, low-linting polyester knit substrate with a standardized solvent load. Typical uses include equipment and environmental surface cleaning, applying/removing process residues (lubricants, adhesives, disinfectant residues), and controlled solvent cleaning with IPA in ISO-classified environments.
Decision drivers
Use these as your selection checklist when you are writing or refining a cleaning specification, SOP template, or validation protocol.
- Pre-wet control (70% IPA): Supports consistency in wetness, VOC exposure, and technique—especially when you need repeatable results and audit-friendly practice.
- Sealed-edge knit construction: A practical risk-reduction step for edge-shed and fiber generation, particularly on sharp or machined features.
- Sterile, validated SAL: Appropriate when you need sterile consumables and sterility documentation alignment for controlled areas and clean transfer steps.
- High sorption behavior: Helps with spill pickup and controlled solution application (you are not chasing puddles or over-spraying to “keep it wet”).
- Traceability discipline: Look for lot coding and documentation availability (CoC/CoA/irradiation) when your quality system depends on it.
- EHS and shipping reality: IPA products bring storage, ignition-source controls, and shipping constraints—plan your replenishment and staging accordingly.
Materials and construction
TX3042P uses a 100% continuous-filament polyester knit substrate processed on Texwipe’s Vertex® manufacturing system and finished with sealed edges. Continuous filaments reduce “short fiber” breakoff compared with staple-based textiles, while sealed edges are intended to reduce edge-origin particles and fibers during wiping and handling.
The wipers are supplied pre-wetted with a controlled 70% IPA / 30% water blend (manufacturer describes 0.2 µm filtered, USP-grade IPA solution for the pre-wet system). This is the core operational advantage: the solvent load is standardized, so wipe pressure and stroke pattern become the main variables you train and control.
Specifications in context
Format: 12" x 12" nominal (31 cm x 31 cm), sealed edge, sterile, pre-wetted 70% IPA.
Packaging: 25 wipers per bag; 5 bags per case (125 wipers per case). Sterile pre-wetted Vertex® packaging is commonly described as triple-bagged for transfer control, with a reclosable bag design to reduce evaporation-related wetness drift once opened.
Cleanroom range: Commonly referenced for ISO Class 3 through ISO Class 7 use-cases (many users also stage these into ISO 8 support areas depending on process risk); always align to your local contamination control strategy and cleaning validation expectations.
Shelf life planning: Sterile pre-wetted products are typically managed on a 3-year shelf-life clock from date of manufacture—verify against the current packaging label and your QA release rules.
Shipping constraint (practical): As a pre-wetted IPA product, TX3042P may ship under consumer commodity/ground-only constraints; plan reorder points and site staging so you do not get caught short during audits or line restarts.
Cleanliness and performance metrics
Metrics matter most when you interpret them in the way your process fails: particles/fibers for yield and visual defects, nonvolatile residue (NVR) for films and “mystery haze,” and ions for corrosion, leakage paths, and cleanliness verification drift. Typical values are a starting point for risk assessment, not a substitute for qualification.
Particles and fibers (typical): LPC ≥0.5 µm: 9.5 x 106 particles/m²; particles 0.5–5.0 µm: 3.0 x 106 particles/m²; particles 5.0–100 µm: 66,000 particles/m²; fibers >100 µm: 200 fibers/m² (methods commonly tied to IEST-RP-CC004 and ASTM E2090-style release testing).
NVR (typical): IPA extractant: 0.02 g/m²; DI water extractant: 0.01 g/m².
Ions (typical, ppm): Sodium 0.17; potassium 0.01; chloride 0.05 (representative of “low ions” positioning in Vertex® processing; confirm relevance to your ionic sensitivity and rinse strategy).
Absorbency behavior (typical): Sorptive capacity 450 mL/m²; sorptive rate ~0.3 seconds. For operators, this translates to faster pickup of thin films and fewer passes to clear a spill—assuming you keep a clean face and do not overwork a saturated wipe.
Packaging, sterility, and traceability controls
TX3042P is gamma irradiated and positioned for sterile use with SAL 10-6. For quality systems, this only becomes valuable when the packaging, lot coding, and documentation flow are treated as part of the process: stage bags correctly, avoid “bench-open” exposure, and keep CoC/CoA/irradiation documentation linked to the lot used for the build or campaign. The manufacturer commonly notes certificates (compliance/analysis/irradiation) availability for sterile Vertex® products, and the product family is associated with periodic microbial/endotoxin-related testing for added contamination control assurance.
Rule of thumb: Treat an opened pre-wet bag like a controlled-use tool: reseal immediately after each pull, label “opened on” date/time per your local practice, and discard if wetness consistency or odor changes suggest evaporation drift or contamination risk.
Best-practice use
If you want better outcomes (and better audit stories), standardize technique. The goal is not “clean until it looks clean.” The goal is a repeatable method that limits redeposition and makes failures diagnosable.
- Fold to control faces: Quarter-fold to create multiple clean faces; flip to a fresh face before you see streaking or drag. Do not “scrub” with a loaded face.
- Wipe clean-to-dirty, one direction: Use overlapping strokes in one direction; avoid circular wiping unless the surface geometry forces it. Circular motions commonly redeposit residue into the same zone.
- Use pressure like a process parameter: “Firm enough to maintain contact” beats “white-knuckle.” Excess pressure increases snag risk on edges and can raise particle generation on rough surfaces.
- Mind solvent behavior: IPA flashes fast. For residue removal, you want a controlled wet film followed by a final pass to lift and remove—do not chase a drying edge back and forth.
- Glove and handling hygiene: If the job is sterile, keep the inner packaging clean, avoid touching the wipe face, and change gloves when you touch noncontrolled surfaces. A sterile wipe cannot outwork dirty handling.
- EHS basics for IPA wipes: Use ventilation where required, keep away from ignition sources, and follow your local PPE and storage controls for flammable materials.
Common failure modes
Streaking or haze: Often residue redeposition from an overworked wipe face or an incompatibility between solvent and the residue type. Fix by switching to fresh faces sooner and enforcing one-direction strokes.
Wetness drift in the pouch: Leaving the bag unsealed or repeatedly “hovering open” during a task can change wetness across the stack. Fix with reseal discipline and smaller “open bag” work batches.
Edge snagging on sharp features: Even sealed edges can catch on burrs or sharp threads, which can tear and create debris. Fix with deburr/edge prep, lighter pressure, and a stroke direction that avoids catching on edges.
Operator overexposure to IPA vapors: Common in tight areas or extended wipe cycles. Fix with ventilation, task rotation, and following the SDS-driven controls for eye/hand protection and ignition-source management.
Closest competitors
Berkshire SatPax® 3000 (70% IPA): A comparable concept—sealed-edge, continuous-filament polyester knit presaturated with IPA—in solvent-resistant resealable packaging. Mechanism difference is less about “IPA vs IPA” and more about fabric construction and how each manufacturer controls edge sealing, cleanliness processing, saturation consistency, and lot documentation for your validation package.
Contec PROSAT® Sterile wipes (various substrates): A competing approach that often uses presaturated nonwoven or polypropylene substrates in resealable/tamper-evident packaging aimed at repeatable protocols and clean transfer workflows. Mechanism tradeoff is substrate behavior: nonwovens can behave differently on abrasion, film pickup, and particle release on rough surfaces versus a knit polyester wiper.
Where it fits in a cleanroom wiping program
TX3042P is a strong fit for “controlled wipe-down” steps where you want sterile status, sealed-edge knit behavior, and standardized IPA delivery—often as a final wipe after a disinfection step, as a pass-through wipe for incoming items, or as an equipment wipe prior to line start. In higher sensitivity programs, teams frequently pair a pre-wet wipe for controlled wet film application with a dry sterile polyester wiper for final dry pickup—especially when residue control and visual inspection outcomes are critical.
Terminology note: Engineered for low-linting performance; no wiper is truly “lint-free” in every process condition.
Source basis
- SOSCleanroom product page — “TX3042P Sterile 12" x 12" Polyester Sealed Edge Wiper 70% IPA” — https://www.soscleanroom.com/product/clearance-deals/texwipe-tx3042p-sterile-vertex-12-x-12-polyester-sealed-edge-wiper-pre-wetted-70-ipa/
- SOS-hosted manufacturer datasheet (PDF) — “TEXWIPE DATASHEET Vertex® Sterile High-Sorption Wipers” (Effective: May 2012) — https://www.soscleanroom.com/content/texwipe_pdf/3042%203049%203042p%203049p.pdf
- Texwipe Technical Data Sheet (PDF) — “Vertex® Dry | Pre-Wetted | Sterile” (US-TDS-022 REV. 03/23) — https://www.texwipe.com/images/uploaded/documents/Wipers/Texwipe-VertexSeries-TDS.pdf
- Texwipe product page — “Sterile Vertex® TX3042P Pre-Wetted Cleanroom Wipers” — https://www.texwipe.com/sterile-pre-wet-vertex-high-sorption-tx3042p
- Texwipe Safety Data Sheet (PDF) — “Texwipe® Wipers pre-wetted with 60%–70% IPA” (May 31, 2023) — https://www.texwipe.com/images/uploaded/documents/Safety%20Data%20Sheets/2023%20wipe%20sds%20us-can-mex/60-70/TX1034_US_CA_SDS_ENG_May_31_2023.pdf
- Competitor reference — Berkshire SatPax® 3000 SPX3000.001.12 — https://berkshire.com/shop/presaturated-cleanroom-wipes/ipa-wipes-isopropyl-alcohol/resealable-pouch-wipes/satpax-3000/spx3000-001-12/
- Competitor reference (PDF) — Contec “PRE019_PROSAT Sterile Wipes (HC)” — https://healthcare.contecinc.com
Source: SOSCleanroom Technical Vault | Last reviewed: Jan. 4, 2026
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