In ISO Class 5 work where electrostatic discharge (ESD) risk overlaps with particle and extractables control, the “right” wiper is often the one that stays predictable: it does not snag, does not shed excessively, and does not become a surprise source of residue when paired with your cleaning solvent.

Vision 50 VS50-99 is positioned as an ESD/anti-static polyester knit wiper intended for ISO Class 5–8 environments, with a manufacturing and laundering approach designed to reduce particulate emission and keep chemical extractables low enough for many electronics-adjacent cleaning tasks. Use it when you need a durable, absorbent knit wiper that can be introduced into controlled areas without treating the wiping step as an uncontrolled variable.

• General surface wipe-down in ISO Class 5 (Class 100) zones where ESD control matters (benchtops, fixtures, carts, tool exteriors).
• Pre-clean and final wipe steps prior to inspection (optics-adjacent handling, housings, covers, shields, and non-critical exterior surfaces).
• Solvent-assisted cleaning where a knit structure improves pickup and durability (validate compatibility with your specific solvent system).
• Routine “touch” cleaning around sensitive electronics where uncontrolled tribocharging is a practical defect driver.

• ESD-safe intent: Designed as ESD/anti-static, for wiping in electronics-adjacent controlled environments.
• Heavyweight knit durability: A 140 gsm polyester knit build targets abrasion resistance and usable absorbency.
• Controlled packaging discipline: Double-bagged, vacuum cleanroom packed with lot-to-lot traceability.
• Cleanroom laundering process described: Laundered in a Class 100 cleanroom using ultra-filtered water and HEPA-filtered air during drying.
• Right-sized throughput: 150 wipes per bag supports point-of-use staging without opening a “too big” case pack at once.

Vision 50 VS50-99 is described as a polyester knit wiper built from premium virgin polyester fibers with conductive/ESD elements integrated into the knit structure, intended to reduce static charge accumulation during wiping. It is specified with knife-cut edges (not a sealed edge), which is a practical detail: knife-cut can be a strong value choice for knit durability and cost, but edge behavior should be verified against your particle sensitivity and inspection methods.

Note on terminology: You will often see “lint-free” used casually in the market. In controlled environments, treat that phrase as shorthand. No wiper is truly lint-free; the operational goal is low-linting performance appropriate to your surface, solvent, and cleanliness limits.

Use the table below as a “shop-floor translation” of what matters when this wiper meets real work: ESD exposure, solvent contact, abrasion, and visual residue risk. If a value is not published in the source basis, it is listed as not published.

Attribute	VS50-99 (9" x 9")
Wiper type	Polyester knit, ESD / anti-static intent
Size	9" x 9"
Basis weight	140 gsm
Thickness	0.49 mm
Edge type	Knife-cut
ISO class positioning	ISO Class 5–8
Sterility	Non-sterile (as positioned by manufacturer)
Packaging (unit)	150 wipes per bag; 12 bags per case
Packaging details	Double bagged and vacuum cleanroom packed; lot traceability
Surface resistivity	108 to 1010 (not published on SOS page; published by a reseller listing)
Autoclavable	Yes (manufacturer claim)

Vision 50 is described as extremely low in chemical extractables and positioned as low in ionic levels, but numeric ion extractables and NVR values are not published in the source basis gathered here. For qualification, treat the tables below as a checklist for what your QA team typically requests (or what you may need to set acceptance criteria around).

Ion	Typical value	Notes
Sodium (Na+)	Not published	Request extractables or CoA if your process is ion-sensitive.
Chloride (Cl-)	Not published	Often a key driver for corrosion risk in metal-adjacent work.
Potassium (K+)	Not published	Set limits based on internal risk assessment and cleaning validation.
Total ionic load	Not published	Use your sampling method and acceptance criteria as the benchmark.

Metric	Typical value	Notes
NVR	Not published	If visual residue is critical, verify via your solvent/evaporation method.
Extractables statement	“Extremely low” (qualitative)	Translate “low” into numbers using your internal qualification protocol.

• Packout: 150 wipes per bag; 12 bags per case (case option typically saves vs. bag ordering).
• Packaging control: Double bagged and vacuum cleanroom packed; described as hermetically sealed and individually inspected with lot-to-lot traceability.
• Sterility: Non-sterile (this is a cleanroom-laundered, dry wiper; do not treat it as sterile unless your documentation explicitly states sterility and method).
• Country of origin (manufacturer statement): Not stated for VS50-99 in the source basis reviewed here.

In practice, wipers fail less because of the fabric and more because of technique: over-wetting, reusing faces, dragging contamination back across the target zone, or letting ESD controls drift. Use the checkpoints below to keep the wiping step “quiet” in your process.

• Residue streaking after solvent wipe: Often driven by over-wetting, slow evaporation, or moving contamination into solution and spreading it.
• Particle trails from edges: Knife-cut edges can behave differently than sealed edges; confirm edge performance on your most sensitive surfaces.
• ESD drift in real work: A wiper can be ESD-positioned and still fail the process if operators are ungrounded, garments are out of spec, or ionization is not maintained.
• Cross-contamination: Reusing faces, wiping “clean-to-dirty,” or staging open bags in uncontrolled areas can negate cleanroom laundering advantages.

Competitor selection should follow the mechanism: ESD intent, knit durability, edge control, and your extractables/particle limits. Consider these as “like-for-like” comparisons:

• ITW Texwipe TX1050 Vectra AlphaSorb10 (9" x 9"): A sealed-border polyester option when edge control and absorbency are prioritized.
• ITW Texwipe TX29 Vertex (9" x 9"): A durability-oriented polyester wiper family often chosen when abrasion resistance is central.
• High-Tech Conversions Vision 20 (polyester knit, non-ESD): If you like the knit handling but do not require ESD positioning, a non-ESD sibling line may be acceptable after qualification.

Vision 50 VS50-99 is a practical match when your controlled environment has two simultaneous expectations: (1) particle/contamination control typical of ISO Class 5 work and (2) ESD discipline because electronics or charge-sensitive assemblies are nearby. The heavyweight knit structure is often chosen for durability and wipe “feel,” while the ESD/anti-static positioning targets charge control during routine handling.

If your critical-to-quality risk is dominated by edge shedding, ultra-low residue limits, or optical-grade visual standards, validate the knife-cut edge behavior and your solvent method on representative coupons before broader rollout. For many facilities, the fastest path is a small pilot: define a wipe method, define a pass count, define discard rules, then measure visible residue and particle response under your actual lighting and inspection tools.