TX8727 PolySat® is a pre-wetted, melt-blown polypropylene cleanroom wiper designed to remove light residues, fingerprints, lubricants, and handling films with a controlled 70% isopropyl alcohol / 30% deionized water solution that is filtered to 0.2 µm. The operational value is repeatability: consistent wetness, consistent VOC behavior, and fewer “operator-made variables” compared with hand-wetting dry wipes in the field. :contentReference[oaicite:1]{index=1}

This SKU is shown on SOSCleanroom as discontinued by the manufacturer (see TX8723), so most programs use TX8727 as a legacy reference point and qualify an active alternative when continuity of supply matters. Even when the product changes, the best-practice controls below (wipe sequencing, face management, zone boundaries, and closure discipline on presaturated packaging) remain the levers that protect yield and reduce rework. :contentReference[oaicite:2]{index=2}

Final wipe and general cleaning of sensitive surfaces, parts, and equipment where a presaturated 70% IPA / 30% DIW wipe improves repeatability versus spray-and-wipe. Common use cases include quick wipe-downs in confined work areas, gowning-room touchpoints, work surfaces, benches, injection mold cleaning, and “items entering the cleanroom” (phones, notebooks, tools) when allowed by the site program. Texwipe positions the PolySat family for ISO Class 5–8 cleanroom environments and notes it meets USP <797> and USP <800> wiper requirements (validate against your facility SOPs and QA expectations). :contentReference[oaicite:3]{index=3}

Choose a presaturated melt-blown polypropylene wipe like TX8727 when your endpoint is “clean and residue-controlled with fewer variables,” and your process benefits from a sealed, repeatable solvent dose per wipe rather than bottle-based wetting at the bench.

• Repeatable wetness and VOC behavior: Presaturation helps stabilize cleaning outcomes across shifts because solvent loading is controlled (less over-wet/under-wet drift). :contentReference[oaicite:4]{index=4}
• Substrate choice (melt-blown polypropylene): Soft, nonwoven polypropylene is commonly selected for sensitive surfaces and general solvent wiping where low extractables are important. :contentReference[oaicite:5]{index=5}
• Edge strategy: Cut edge supports a soft handling profile; qualify edge behavior if you wipe across sharp features, threaded fasteners, or rough finishes. :contentReference[oaicite:6]{index=6}
• Packaging control: Locking container and refill format are intended to reduce evaporation and preserve consistent wetness; operator closure discipline is the control that makes this true. :contentReference[oaicite:7]{index=7}
• Traceability: Lot coding supports deviation investigations when a cleaning step is part of the control strategy. :contentReference[oaicite:8]{index=8}
• EHS and handling: IPA presaturated wipes introduce flammability and vapor exposure considerations—proper ventilation, ignition control, and PPE expectations should be embedded in the wiping SOP. :contentReference[oaicite:9]{index=9}

TX8727 uses a 100% melt-blown polypropylene nonwoven substrate with a cut edge and is supplied pre-wetted with a 0.2 µm filtered 70% IPA / 30% DIW solution. Melt-blown polypropylene is commonly used for presaturated wipes because it provides a soft “solvent carrier” sheet that can lift light films without introducing adhesives or binders typical of some nonwovens (confirm compatibility with your surface, coating, and acceptance criteria). :contentReference[oaicite:10]{index=10}

The physical format is engineered for controlled dispensing in tight spaces: the wipes are dove-folded (6" x 4" folded; 6" x 11" open) and packaged for one-hand operation in a secure, locking polypropylene container to reduce evaporation. These are not “soaked wipes”; Texwipe’s SDS notes fill volume is controlled to ensure no free liquid is present in the final product packaging—an important safety and consistency detail for cleanroom use. :contentReference[oaicite:11]{index=11}

SKU: TX8727 (PolySat® pre-wetted, non-sterile)
Wiper family: PolySat® (presaturated 70% IPA / 30% DIW)
Material/structure: 100% melt-blown polypropylene (nonwoven)
Wiper size: 6" x 11" (15 cm x 28 cm) open; 6" x 4" folded; dove-folded
Edge strategy: cut edge
Solution: 70% IPA / 30% DIW (0.2 µm filtered); filled using USP grade IPA for this non-sterile family per Texwipe TDS notes
Packaging (case): 75 wipers/refill bag; 20 refill bags/case; 1 reclosable container/case; 1,500 wipers total/case
Cleanroom environment (manufacturer positioning): ISO Class 5–8 (Class 100–100,000; EU Grade B–D)
Shelf life: non-sterile (pre-wetted) – 3 years from date of manufacture

In context: TX8727’s dispensing format matters as much as the wipe itself. If your process sees “dry wipes” at the top of the container or streaking variability late in a shift, the root cause is frequently closure discipline (evaporation) or overdrawing multiple wipes. If you need pouch-based control rather than a canister, qualify a comparable presaturated format and define a closure/hold-time rule in the SOP. :contentReference[oaicite:12]{index=12}

For cleanroom wiping, metrics are most useful when you tie them to an endpoint: particles/fibers map to shedding risk, NVR maps to residue film risk, and ions map to corrosion or ionic contamination risk. Manufacturer data are typical analyses and should be confirmed during qualification using your surfaces, chemistries, contact time, and wiping method. Texwipe references IEST-RP-CC004.3 for evaluation of wiping materials and ASTM E2090-12 for size-differentiated particle/fiber release as part of its test-method basis. :contentReference[oaicite:13]{index=13}

Typical contamination and extractables (PolySat family, manufacturer typicals):
• LPC (≥0.5 µm): 13 x 10⁶ particles/m²
• Fibers (>100 µm): 4,500 fibers/m²
• NVR (IPA extractant): 0.001 g/m²
• NVR (DIW extractant): 0.005 g/m²
• Ions: Sodium 0.3 ppm; Potassium 0.2 ppm; Chloride 0.15 ppm

Typical physical performance (PolySat family, manufacturer typicals):
• Sorptive capacity: 360 mL/m²  • Sorptive rate: <0.3 seconds  • Basis weight: 34 g/m²

Operational interpretation: If the wipe is leaving streaks, haze, or drag marks, that is usually a technique/control issue (overworking a drying film, reusing a loaded face, or evaporation-shifted wetness) more than a “bad wipe” event. Treat face rotation, zone boundaries, and closure discipline as your acceptance controls. :contentReference[oaicite:14]{index=14}

Presaturated wipes only deliver consistent performance when the packaging stays in control. TX8727 is designed around a secure, locking container to reduce evaporation and preserve repeatable wetness and VOC levels, but real-world variance typically comes from leaving the lid cracked, staging the open container near airflow, or overdrawing multiple wipes and returning them to the pack. For EHS, the SDS for Texwipe 60%–70% IPA pre-wetted wipes classifies the product as a flammable solid and includes eye irritation and single-exposure narcotic effects warnings; integrate ignition control, ventilation expectations, and PPE (eye protection, gloves as required) into the cleaning SOP and training. :contentReference[oaicite:15]{index=15}

Presaturated IPA wiping is a technique task. The controls below keep the step repeatable and aligned to standards-based expectations for controlled-environment wiping (e.g., define the wipe method, face-change triggers, and zone progression as part of the cleaning instruction). :contentReference[oaicite:16]{index=16}

• Fold and manage faces: Use a consistent fold so you can rotate to a fresh face on a set cadence (for example, edges/seams/fasteners get a fresh face). Avoid wiping large areas with a loaded face.
• Wipe direction and overlap: Use unidirectional, overlapping strokes (clean-to-less-clean). Avoid back-and-forth scrubbing that redeposits films.
• Separate “apply” and “finish” when needed: If the process requires contact time, treat the first pass as application, then finish with a fresh face to remove residues rather than polishing a drying film.
• Container discipline: Close immediately after each wipe. Do not pull multiple wipes “for later,” and do not return partially used wipes to the container.
• Compatibility check: Validate on coatings/plastics/optics before broad deployment; IPA can stress-crack some polymers and can move certain inks/labels.
• Shipping/handling compliance: Follow site rules for flammable materials; SOSCleanroom flags this type of item for ground-shipping constraints as applicable. :contentReference[oaicite:17]{index=17}

Streaks, haze, or drag marks: Most often caused by reusing a loaded face or wiping a film as it dries; correct by switching to a fresh face earlier and finishing with a defined “remove/finish” pass.

Inconsistent wetness from the same container: Usually evaporation (lid left open, container staged in airflow) or overdrawing; correct with immediate closure after each pull and strict one-wipe-at-a-time dispensing. :contentReference[oaicite:18]{index=18}

Residue complaints after IPA wiping: Often a process interaction (soil chemistry, incompatibility, or insufficient removal pass) rather than the IPA itself; correct by adding a defined follow-up wipe step or validating a different chemistry pathway for that residue class.

Tearing/snags on sharp features: Cut-edge nonwovens can catch on burrs or hardware; correct by deburring/repairing the surface and reserving a fresh face for seams/fasteners or qualifying an alternative wipe format for that step.

EHS events (eye irritation, dizziness): IPA vapor exposure and contact risk; correct with ventilation, ignition control, and PPE expectations per SDS and site EHS guidance. :contentReference[oaicite:19]{index=19}

Berkshire SatPax® 550 (melt-blown polypropylene, 70% IPA): Mechanism-aligned comparator (melt-blown polypropylene + 70% IPA presaturation) typically offered in resealable pouch formats. Often evaluated when teams want a similar substrate/chemistry but prefer pouch-based handling over a canister workflow. :contentReference[oaicite:20]{index=20}

Contec PROSAT® Sterile / melt-blown polypropylene presaturated wipes (70% IPA): Mechanism-aligned alternative frequently positioned for critical environments with pouch-based saturation control and lot traceability, available in sterile configurations. Used when sterility or validated sterile documentation is part of the requirement set. :contentReference[oaicite:21]{index=21}

Kimtech™ Pure W4 PreSat Alcohol Wipers (100% polypropylene, 70% IPA): A widely available presaturated polypropylene option in resealable pouches, commonly selected for ISO Class 4 and higher environments depending on configuration and program requirements. Often compared for packaging format, sheet count, and documentation expectations. :contentReference[oaicite:22]{index=22}

TX8727 fits as a “controlled solvent wipe” for fast, repeatable cleaning in ISO Class 5–8 environments, particularly where operators work in confined spaces and benefit from one-hand dispensing and a consistent presaturated dose. In a tiered program, teams often keep presaturated IPA wipes for point-of-use touch cleaning and pair them with dry knit polyester or sealed-edge options for heavier soils, larger areas, or steps where edge control is the dominant risk. Because this SKU is listed as discontinued, ensure your program has an approved alternate and that your SOP defines the wiping method (folding, face changes, stroke map, and closure discipline) so performance survives product transitions. :contentReference[oaicite:23]{index=23}

• SOSCleanroom product page — Texwipe TX8727 PolySat 6" x 11" Polypropylene Cleanroom Wiper Pre-Wetted 70% IPA: https://www.soscleanroom.com/product/wipers/texwipe-tx8727-polysat-6-x-11-polypropylene-cleanroom-wiper-pre-wetted-70-ipa/ :contentReference[oaicite:24]{index=24}
• SOS-hosted PDF (stable reference) — PolySat® (TX8727 / TX8727C), Effective: March 2012: https://www.soscleanroom.com/content/texwipe_pdf/8727%208727c.pdf :contentReference[oaicite:25]{index=25}
• Manufacturer TDS — Texwipe PolySat® Technical Data Sheet, TEX-LIT-TDS-013 Rev.00-05/18 (PDF): https://www.texwipe.com/images/uploaded/documents/Wipers/Texwipe-PolySat-TDS-ENG.pdf :contentReference[oaicite:26]{index=26}
• Manufacturer product page — PolySat® TX8727 Pre-wetted Cleanroom Wipers, Non-Sterile (technical downloads include TDS/SDS): https://www.texwipe.com/polysat-tx8727 :contentReference[oaicite:27]{index=27}
• Manufacturer SDS — Texwipe® Wipers pre-wetted with 60%–70% IPA, May 31, 2023 (PDF): 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 :contentReference[oaicite:28]{index=28}
• Test method basis referenced by manufacturer: IEST-RP-CC004.3 and ASTM E2090-12 (as cited in Texwipe TDS). :contentReference[oaicite:29]{index=29}
• Berkshire comparator — SatPax® 550 presaturated melt-blown polypropylene, 70% IPA: https://berkshire.com/shop/presaturated-cleanroom-wipes/ipa-wipes-isopropyl-alcohol/resealable-pouch-wipes/satpax-550/spx55000124p/ :contentReference[oaicite:30]{index=30}
• Contec comparator — PROSAT® Sterile™ Meltblown Polypropylene Wipes presaturated with 70% IPA: https://cleanroom.contecinc.com/product/1779540808 :contentReference[oaicite:31]{index=31}
• Kimtech comparator — Kimtech™ Pure W4 PreSat Alcohol Wipers (100% polypropylene, 70% IPA): https://www.kcprofessional.com/en-us/products/wiping-and-cleaning/controlled-environments/delicate-task-wet-wipes/kimtech%E2%84%A2-w4-wipers/33390 :contentReference[oaicite:32]{index=32}