Texwipe TX742B Small CleanFoam® Cleanroom Swab (Open Cell, 100 PPI) – Precision Foam Swab for Grooves, Corners & Recessed Features

Texwipe TX742B is a small, rigid-tip, open-cell polyurethane foam cleanroom swab engineered for precision cleaning, controlled solvent application, and particulate pickup in tight geometry where wipes cannot maintain stable contact. Built from 100 PPI CleanFoam® open-cell polyurethane, TX742B readily absorbs solvents and solutions and helps capture debris within the foam matrix, while complete thermal bond construction (no adhesive) removes a common contamination variable at the head/handle interface during solvent-wet work. It is cleanroom processed to support low background nonvolatile residues (NVRs) and ionic extractables (method-dependent), manufactured to consistent tolerances, lot coded for traceability, and packaged in a silicone-free and amide-free bag to reduce trace contamination variables in residue-sensitive processes. As with all swabs, performance is process-dependent and no swab is truly “zero-lint” in every condition; the goal is low-linting performance with disciplined, repeatable technique.

Corner-control note: TX742B is widely selected when teams need a small swab that can reach into seams, joints, corners, and intersecting surfaces without flooding the feature—delivering solvent in a controlled way and pulling debris out of the recess instead of pushing it deeper.

Specifications:

SKU: TX742B BAG
Type: Dry swab (non-sterile)
Swab family: CleanFoam® Series B (Open Cell)
Swab material: Foam
Head material: 100 PPI CleanFoam® open-cell polyurethane
Head width: 3.6 mm (0.142")
Head thickness: 3.5 mm (0.138")
Head length: 12.0 mm (0.472")
Handle material: Polypropylene (100% virgin polypropylene handle)
Handle width: 3.0 mm (0.118")
Handle thickness: 3.0 mm (0.118")
Handle length: 59.0 mm (2.323")
Total swab length: 71.0 mm (2.795")
Head bond: Thermal (no adhesive)
Handle color: Light green
Design notes: Rigid head core; compact handle
Packaging (bag): 500 swabs per bag (5 inner bags of 100 swabs)
Packaging (case): 5 bags of 500 swabs per case
Packaging controls: Silicone-free and amide-free bag; lot coded for traceability and quality control
Autoclave compatibility: Autoclavable in dry heat and steam (validate cycle parameters and post-cycle cleanliness against your SOP)
Temperature guidance: Appropriate for use with temperatures less than 350°F (process-dependent)
Typical industries: Biologics, Medical Device, Microelectronics, Optics, Pharmaceuticals, Semiconductor
Use environments: Commonly used across a wide range of ISO-class cleanrooms and controlled areas (final suitability depends on your process, solvent system, and cleaning method)

About the Manufacturer:

Texwipe (an ITW company) differentiates itself in contamination-control swabbing by treating the swab as an engineered process tool, not a commodity. For CleanFoam® Series B swabs like TX742B, the practical differentiators are the controlled 100 PPI open-cell foam structure, thermal bonding to eliminate adhesives, cleanroom processing aimed at reducing background residues and ionic extractables, and consistent manufacturing tolerances that help teams standardize repeatable cleaning technique.

SOSCleanroom (SOS) supports that discipline with continuity of supply and responsive technical support—so customers can keep the exact CleanFoam® open-cell swab they qualified in service and avoid substitutions that change wetting behavior, solvent hold-up, and residue outcomes at critical wipe points.

TX742B Features:

100 PPI open-cell polyurethane foam head: absorbs solvents/solutions and helps capture particulates in tight geometry (technique-dependent)
Complete thermal bond construction: eliminates adhesive contamination at the bond line
Cleanroom processed: low levels of nonvolatile residues (NVR) and ions (method-dependent)
Rigid head core + compact handle: repeatable contact in small features without a floppy tip that encourages aggressive scrubbing
Lot coded: traceability and quality control support investigations and standardized work instructions
Silicone-free and amide-free packaging: reduces common trace contamination variables in residue-sensitive builds
Virgin polypropylene handle: excellent chemical resistance and reduced additive-driven residue risk
Autoclavable: compatible with dry heat and steam autoclave cycles when validated to your SOP

TX742B Benefits:

Precision access where wipes fail: engineered for seams, joints, corners, grooves, slots, and intersecting surfaces
Controlled solvent delivery (process-dependent): open-cell foam holds and delivers solvent effectively for localized cleaning and pickup
Cleaner baseline under solvent exposure: adhesive-free thermal bonding removes a common source of bond-line residue variability
Repeatability and documentation support: lot coding + consistent geometry supports standardized operator technique and investigation readiness
Reduced trace contamination risk: silicone-free/amide-free packaging supports optics, microelectronics, and residue-critical processes

Common Applications:

Applying and removing lubricants, adhesives, and other solutions in a critical clean environment
Scrubbing recessed areas
Removal of excess materials and debris
Cleaning intersecting surfaces and joints
Cleaning with compatible solutions and solvents (including IPA where validated)
Picking up fine powders
Precision cleaning in biologics, medical device, microelectronics, optics, pharmaceuticals, and semiconductor controlled environments

Best-Practice Use:

Control wetness (damp, not dripping): open-cell foam can hold more solvent than expected. Over-wetting floods corners, migrates dissolved soils, and can dry into residue rings.
Pull contamination out of the feature: choose stroke direction that extracts soil from a corner/slot instead of pushing it deeper into seams.
Single-direction, overlapping strokes: reduce redeposit risk and stabilize repeatability across operators and shifts.
Rotate and retire early: once the foam face loads, it becomes a transfer tool. Rotate faces and discard before streaking begins.
Avoid re-dipping into shared solvent: use one-way dispensing or defined aliquots to prevent cross-contamination and keep results consistent.
Validate compatibility: confirm foam/handle compatibility against your solvent system, dwell time, and contact pressure (especially for aggressive chemistries).

Selection Notes (TX742B Fit-to-Task)

Open-cell vs. closed-cell foam: choose open-cell when absorbency and particulate capture are priorities; choose closed-cell when you need tighter solvent control and less liquid hold-up. Validate to your residue, surface, and inspection criteria.
Why the rigid head core matters: more controlled contact in small features can reduce the temptation to scrub, which is a common driver of residue smearing and surface abrasion.
Adhesive-free construction for solvent work: thermal bonding removes adhesive as a variable when your process is sensitive to extractables and streaking.
Temperature limitation: keep use below 350°F and confirm chemical compatibility for your specific process conditions.

Link to Texwipe Technical Datasheet: Click Here
Texwipe.com PDF: Click Here
Texwipe Swab Comparison Chart (brochure): Click Here

Notes: Need operator-level guidance for Texwipe TX742B small open-cell CleanFoam® swabs (solvent metering, stroke discipline, and discard cadence to reduce streaking and residue spread) in ISO-class controlled environments? Open the SOSCleanroom Technical Vault tab above for practical, shop-floor technique aligned to real cleaning workflows.

SOSCleanroom.com supports contamination-control programs with best-in-class cleanroom consumables in stock, fair pricing, and responsive technical support—backed by same-day shipping options and customer service that understands real cleanroom workflows.

Product page updated: Jan. 5, 2026 (SOS Technical Staff)

© 2026 SOS Supply. All rights reserved.

The Technical Vault By SOSCleanroom

ISO 14644 Operations Control CleanFoam® Open-Cell Series (TX742B) Foam (open-cell polyurethane) Small head; rigid handle Precision Cleaning / Solvent Application Lot Traceability

Texwipe TX742B Small CleanFoam® Cleanroom Swab (Open Cell, Non-Sterile) — Tight-Access Solvent Pickup for Ports, Grooves, and Detail Cleaning Where Wipers Are Too Broad

Texwipe’s TX742B Small CleanFoam® Cleanroom Swab is a cleanroom-processed, non-sterile foam swab selected when a small head is needed to control contact area and solvent placement. The open-cell polyurethane foam construction is often used where solvent capacity and rapid wetting behavior are useful, provided the method controls wetness and chemistry compatibility for the surface being cleaned. In controlled environments, small open-cell foam swabs are commonly applied to ports, connectors, seams, grooves, threads, and tight tool interfaces where localized particles or films can accumulate. Operational outcomes typically depend on solvent selection, defined loading (damp vs. wet), short unidirectional strokes, and rotating the head to present a clean face as loading occurs. Because open-cell foam can retain and release solvent readily, many SOPs include loading limits and change-out triggers to reduce pooling, streaking, and residue carryover. For controlled or validated programs, confirm construction details, cleanliness positioning, and acceptance criteria using current manufacturer documentation and lot records.

Operations takeaway: In cleanrooms, swabs are a precision tool. The outcome depends on head material, solvent loading, stroke discipline, and single-use/change-out rules.

ISO-first context: where swabs fit in cleanroom operations control

ISO 14644-5:2025 places cleaning and handling activities under a documented Operations Control Programme (OCP). Swabs belong in that system because they directly influence localized contamination (particles, fibers, residues, and solvent carryover). Where swabs are used for precision cleaning (e.g., corners, ports, fixtures) or verification-related activities, the method should be written, trained, and repeatable: approved solvent, defined wetness, defined motion (stroke count/direction), and defined change-out triggers.

Control point: “Overworking” a swab is a common failure mode. Once the head loads, it becomes a redeposit tool. Build discard frequency into the SOP.

Specifications (SKU controls for RFQs, SOPs, and receiving)

Product: Texwipe TX742B Small CleanFoam® Cleanroom Swab
Head material: Foam (open-cell polyurethane) (verify per manufacturer documentation)
Tip geometry: Small head profile for tight access; dimensions/shape per current specification (verify per manufacturer documentation)
Handle: Rigid handle for controlled placement; material/length per current specification (verify per manufacturer documentation)
Residue / lint positioning: Cleanroom processed / low residue positioning; confirm NVR/ions and packaging controls per manufacturer documentation
Sterility: Non-sterile (verify per manufacturer documentation)
Packaging: Verify current configuration per manufacturer documentation

Documentation rule: For controlled/validated programs, acceptance criteria should be based on current manufacturer documentation and lot records.

What this swab is designed to do (typical use cases)

Precision cleaning in small areas: slots, corners, ports, seams, grooves, threads, connectors, and intersecting surfaces
Controlled solvent application/removal (IPA, acetone, engineered solvent per SOP) with defined wetness targets
Removing localized particulate or residue from tool interfaces and fixtures where cloth/wiper contact is too broad
Detail cleaning on sensitive surfaces where a small contact patch improves placement control
Sampling/verification workflows only if applicable and permitted by your SOP

Selection note: Match the swab head material to the task: foam for solvent control and low linting, polyester for durability and precision wiping, specialty options for ESD or micro-features—then validate to your surface and chemistry.

Best-practice use (reduce residues, particles, and rework)

Control introduction: bring swabs into the cleanroom per OCP rules (outer packaging removal, staging, storage).
Control wetness: use a defined “damp” loading (not dripping). Excess solvent is a primary cause of residue streaking and pooling.
Directional strokes: use short, controlled, unidirectional strokes. Avoid scrubbing that redistributes contamination.
Rotate the head: present a clean face/edge as you move; do not keep wiping with a loaded surface.
Change-out triggers: discard when the head loads, deforms, sheds, or the solvent profile changes (drying or over-wetting).
Waste discipline: discard immediately into the designated waste stream (do not stage used swabs on benches).

Method standardization tip: If outcomes vary, lock three variables: solvent used, wetness target, and stroke count per feature.

Misuse controls & when not to use

If sterility is required: do not substitute non-sterile swabs for sterile workflows.
If you are sampling for validation: do not substitute cleaning swabs for protocol-defined sampling devices and methods.
If the chemistry is aggressive: verify compatibility of the foam construction and handle material to the solvent.
If ESD is critical: use an ESD-safe swab/handle where required and validate resistance/grounding to your program.

Recommended glove pairing (cleanroom handling discipline)

Pair precision swabbing with cleanroom-appropriate gloves to reduce transfer contamination and maintain repeatable technique. If you want to standardize one glove across this swab series, provide the glove SKU URL and we will lock it as we did for wipers.

Glove pairing (ISO 5/Class 100 positioning): Ansell 93-311 Nitrilite® Cleanroom Nitrile Gloves (Class 100 / ISO 5). Non-sterile companion wiper options (standardize per SOP): Texwipe TX1009 AlphaWipe 9" x 9", Texwipe TX609 TechniCloth 9" x 9", or Texwipe TX1010 Vectra Alpha10 9" x 9".

Glove discipline: Change gloves when contaminated, solvent-wet, torn, or after contacting non-controlled surfaces.

Why buy this cleanroom swab from SOSCleanroom

Configuration control: Swab performance is geometry- and material-sensitive; ordering by exact SKU supports method consistency.
Audit readiness support: We help customers locate current manufacturer documentation aligned to receiving controls and lot traceability expectations.
One-cart procurement: Pair swabs with solvents, wipers, gloves, and facility consumables so your cleaning method stays consistent.

Manufacturer documentation (authoritative references)

Manufacturer documentation portal: Click Here
ISO 14644-5:2025 operations standard overview (ISO listing): Click Here

If you have any questions please email us at Sales@SOSsupply.com or give us a call at (214)340-8574. OR check out the AI ChatBot powered by SOSCleanroom data libraries - give it a try! THIS IS NEW FOR 2026! © 2026 SOSCleanroom. All rights reserved.