Product Overview & Strategic Positioning
The Weston Premium Paper Stick Cotton Swab Series is a critical contamination control tool engineered specifically for high-reliability manufacturing sectors, including ISO Class 4-7 (Class 10-10,000) cleanrooms. Utilizing 100% natural, long-staple pure cotton mechanically bonded to an ultra-dense, silicone-free paper stick, these swabs eliminate the common failure modes of generic cleaning tools-such as polymer leaching, surface micro-scratching, heavy-metal ionic contamination, and static accumulation.
Advanced Engineering Features & Material Benefits
|
Technical Feature |
Contamination Control & Operational Benefit |
|
Ultra-Dense, Rigid Paper Stick |
Provides high structural rigidity and precise tactile feedback. Chemically inert to aggressive industrial solvents (e.g., Acetone, MEK, high-purity IPA), preventing handle swelling or polymer outgassing. |
|
High Absorbency & Zero Distortion |
Engineered to absorb and retain micro-volumes of fluid efficiently. The head maintains its exact geometric form when saturated, ensuring repeatable cleaning. |
|
Low-Linting, Long-Fiber Cotton Tip |
Constructed exclusively from cross-entangled long-fiber cotton to minimize fiber shedding. Safe for high-sensitivity surfaces. |
|
Adhesive-Free 100% Pure Cotton |
Processed without binders, optical brighteners, or chemical adhesives. Guarantees zero outgassing and no residue after evaporation. |
|
ESD-Safe Antistatic Packaging |
Packed in certified antistatic, silicone-free environment to prevent electrostatic discharge damage. |
Comprehensive Certified Chemical Compliance (RoHS 2.0 / IEC 62321)
Weston swabs undergo rigorous third-party chemical analytical testing to protect fragile substrates from trace molecular and ionic contamination. All products strictly comply with EU RoHS Directive standards.
SGS Certified Heavy-Metal Free & Zero Halogen Contamination
Tested under IEC 62321, Weston swabs are certified free from heavy metals and brominated flame retardants.
Heavy Metals (Pb, Hg, Cd, Cr6+): Not Detected (N.D.)
PBBs (Polybrominated Biphenyls): N.D.
PBDEs (Polybrominated Diphenyl Ethers): N.D.
Phthalate-Free (Plasticizer) Certification
Laboratory testing (Report No. A2260294452104001E) confirms hazardous plasticizers are Not Detected (N.D.) above MDL 50 mg/kg.
DBP: N.D.
BBP: N.D.
DEHP: N.D.
DIBP: N.D.
Geometric Specifications & Swab Typologies
Type 1: Optical Double Round Head (Model: W-DR77)
Optimized for broad surface cleaning, solvent distribution, and uniform swabbing across flat optical components.
|
Dimensional Parameter |
Specification |
|
Stick Length |
73.0 mm |
|
Stick Diameter |
Φ 0.4 mm |
|
Single Head Length |
14.5 ± 0.8 mm |
|
Single Head Thickness |
4.4 ± 0.3 mm |
|
Total Swab Length |
77.5 ± 0.8 mm |
Type 2: Precision Double Pointed Head (Model: W-DP81)
Designed for micro-gap and narrow-channel precision cleaning.
Designed with a sharp, tapered profile to enable precision access into narrow channels, micro-gaps, and localized blind holes.
|
Dimensional Parameter |
Specification |
|
Stick Length |
73.0 mm |
|
Stick Diameter |
Φ 0.4 mm |
|
Single Head Length |
11.2 ± 0.8 mm |
|
Single Head Thickness |
4.8 ± 0.5 mm |
|
Total Swab Length |
81.0 ± 1.0 mm |
Process-Specific Application Scenarios
Semiconductor Wafer Fabrication
Edge cleaning, photoresist track systems, vacuum pick-up cups
01
Laser & Optoelectronics Assembly
Laser diode facets, beam splitters, fiber-optic ferrules
02
Precision Optical Maintenance
Industrial lenses, microscopes, spectrophotometers
03
ESD-Protected Areas (EPAs)
Safe use in electrostatic-sensitive environments
04
Frequently Asked Questions
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