
Johnathan Doe
Founder & CEO

Johnathan Doe
Marketing Head

Johnathan Doe
Finance Head
Bupclean® cleanroom finger cot available in one size 27×65mm or S/M/L diameters (23/26/28mm). Powder‑free, low particle, ESD safe. For electronics assembly and precision handling. Model BN.25011205-D.
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| Parameter | Value |
|---|---|
| Brand | Bupclean® |
| Model | BN.25011205-D |
| Material | Nitrile (preferred) or latex (powder‑free) |
| Length | 65 mm (approx. 2.56 inches) |
| One size (flat width) | 27 mm (approx. 1.06 inches) |
| Small (S) inner diameter | 23 mm |
| Medium (M) inner diameter | 26 mm |
| Large (L) inner diameter | 28 mm |
| Thickness | Approx. 0.10 – 0.15 mm |
| Texture | Smooth or lightly textured (grip) |
| Color | Natural off‑white (latex) or blue (nitrile) |
| Powder‑free | Yes |
| Latex‑free | Yes (nitrile version) |
| Cleanroom compatible | ISO 5 – ISO 8 |
| Particle shedding | ≤300 particles/finger cot (≥0.5μm) |
| NVR | ≤0.05 mg/cot |
| Packaging | 500 or 1000 pieces per polybag, 10 bags per carton |
| Shelf life | 24 months |
Precise finger protection
Finger cots allow operators to keep other fingers bare for handling tools or touchscreens while protecting the working finger (usually index or thumb). This is more economical than wearing full gloves when only one or two fingers contact sensitive surfaces.
Low particle and ion generation
Cleanroom grade finger cots are washed and packaged to minimize contamination. Typical particle shedding (for quality nitrile finger cots):
| Particle size | Particles per finger cot (≥0.5μm) |
|---|---|
| ≥0.5μm | 250 – 300 |
| ≥5μm | 20 – 30 |
Powder‑free and residue‑free
No cornstarch or powder that could transfer to components. Low NVR (non‑volatile residue) – typically <0.05 mg per cot.
Sizing guide – choose the correct diameter
| Size | Inner diameter (mm) | Recommended for finger circumference | Typical user |
|---|---|---|---|
| S | 23 mm | ~72 mm (2.8 in) | Small fingers (women, small hands) |
| M | 26 mm | ~82 mm (3.2 in) | Average adult index finger |
| L | 28 mm | ~88 mm (3.5 in) | Large fingers or thumb |
| One size | 27mm flat width | Fits most average fingers | General use (less precise fit) |


Real test data (nitrile, size M)
| Test | Result |
|---|---|
| Tensile strength | >10 MPa |
| Elongation at break | >500% |
| Surface resistance (ESD version) | 10⁶ – 10⁹ Ω |
| Protein content (latex free) | <0.5 μg/g |
Our clients from semiconductor, pharmaceutical, medical device, and aerospace industries trust our cleanroom wipers for consistent performance, high absorption, and low particle generation. Here’s what they have to say.

Founder & CEO

Marketing Head

Finance Head
We have broken down the core products and actual test data into a clear, at-a-glance comparison table across six industries (semiconductor wafers, OLED panels, precision optics, biopharmaceuticals, automotive electronics, and new energy batteries). The table includes the wiper or cleanroom consumable model for each industry, key physical parameters (particle shedding, water absorbency, ionic residues, etc.), and applicable compliance standards (SEMI, GMP, IATF 16949, ISO 10993, etc.)
Industry Resources: