Thickened ESD Wipes for Grade C/D Cleanrooms
A thickened, low-linting ESD wipe with conductive-fiber stripes and a microfiber core, engineered to control static and absorb spills in Class C/D cleanrooms.
Core Features
shell at a 0.5 cm (5 mm) stripe pitch, forming a grid that dissipates static across the whole wipe instead of relying on a single conductive thread.
- Thickened absorbent core - A microfiber towel layer is sandwiched inside the ESD shell, pushing capacity well past a standard single-layer wipe - lab-rated at 160 g (160 mL) absorbed per wipe.
- Low-linting shell - The tight polyester/conductive-fiber weave resists fraying and fiber shedding, keeping particle generation low enough for Class C/D pharmaceutical cleanroom work.
- Color-coded by design - Offered in white, blue, pink, yellow, and green so a facility can assign a color per room, line, or task and cut cross-contamination risk from shared wipes.
- Built to hang, not sit wet - A roughly 4 cm (1.6 in) hook strap is sewn into one corner, so a used wipe can air-dry off the work surface instead of balling up on a bench.
Product Details
| Parameter |
Detail |
| Model |
WH-4009 |
| Shell material |
Polyester + conductive fiber, 0.5 cm (5 mm) stripe pitch |
| Core material |
Microfiber absorbent towel (inner layer) |
| Standard size |
28 × 28 cm (≈11 × 11 in) |
| Colors |
Available on request |
| Custom sizes |
White / Blue / Pink / Yellow / Green |
| Hook strap length |
≈4 cm (1.6 in) |
| Recommended environment |
Grade C/D (EU GMP), roughly ISO Class 7–8 |
| Absolute water absorption |
160 g (160 mL) per wipe |
| Absorption rate |
3.35 g/g (grams absorbed per gram of wipe) |
Application Scenarios
Pharmaceutical Grade C/D cleanrooms
Used for equipment-surface wipe-down during changeovers and routine housekeeping on tablet, capsule, and liquid-fill lines. The absorbent core handles a full IPA-based sanitizing pass without soaking through, and color-coding (blue for equipment, white for general surfaces, for example) keeps changeover steps aligned with SOP zoning rules.
Electronics and semiconductor ESD-safe assembly
On SMT and final-assembly lines, the conductive-fiber grid keeps the wipe itself from becoming a static source near populated boards - a real risk with ordinary cloth. Operators use it to clear flux residue and light debris from fixtures and work surfaces without introducing a charged object into the EPA (ESD Protected Area).
Medical device cleanroom packaging
In sub-assembly and packaging areas for particulate- and static-sensitive devices, the low-linting shell limits fiber shedding onto product, while the thickened core is usually enough for one wipe to finish a full workstation pass instead of two or three thin wipes.
FAQ
Q:What does the "0.5 cm conductive stripe" spec actually mean?
A: Conductive carbon-fiber yarn is woven into the polyester base at 0.5 cm intervals, so the whole wipe carries a grounding path rather than just one thread.
Q: Are these wipes reusable, or single-use?
A: They're a woven textile, not a disposable nonwoven, so they're built to go through a cleanroom laundering cycle and be reused. Ask us for wash-count guidance for your specific order.
Q: Which cleanroom class is this rated for?
A: Grade C/D under EU GMP, roughly equivalent to ISO Class 7–8 - matched to the pharmaceutical cleanroom use case it was designed for.
Q: Do the five colors serve a purpose beyond appearance?
A: Yes - most buyers use them as a visual control, assigning one color per room, line, or cleaning task so a wipe from one zone doesn't drift into another.
Q: Can I order a size other than 28 × 28 cm?
A: Yes, custom sizes are available. Absolute absorption will scale roughly with surface area rather than staying fixed at 160 g / 160 mL.
Q: How is this different from a standard, non-thickened ESD wipe?
A: A standard ESD wipe is usually one layer of conductive-stripe fabric. This one adds a microfiber towel layer inside that shell, which is what gets it to 3.35 g of liquid absorbed per gram of wipe.
Q: Is it compatible with IPA and other common cleanroom sanitizers?
A: The polyester/microfiber blend holds up well to IPA-based solutions, which cover most day-to-day cleanroom sanitizing. For stronger solvents, confirm compatibility with us first.
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