What’s the difference between sealed-edge and laser-cut cleanroom wipers?

Sealed-edge (ultrasonically welded) wipers have the lowest particle and fibre release and are preferred for ISO Class 5 cleanrooms. Laser-cut wipers offer a clean cut without melting and are commonly used in ISO Class 6/7 applications. Cut-edge (knife-cut) wipers shed more fibres and are generally limited to ISO Class 7/8.

How do I choose between 100% polyester and polyester/cellulose wipers?

100% polyester wipers are inert, low-extractable and low-shedding — the right choice for semiconductor and ISO Class 5 work. Polyester/cellulose blends are more absorbent and cost-effective, suited to ISO Class 7/8 and general lab cleaning where slightly higher fibre release is acceptable.

Are pre-saturated IPA wipers compatible with semiconductor cleanrooms?

Yes — our pre-saturated IPA wipers use 70% IPA / 30% DI-water in sealed sachets validated for semiconductor and medical-device cleanroom use. They eliminate manual saturation, ensure consistent solvent volume, and reduce ionic contamination risk versus pour-and-wipe methods.

How are cleanroom wipers tested for particle release?

Testing follows IEST-RP-CC004.3 — wipers are evaluated for particle count by Helmke-drum and biaxial-shake methods, non-volatile residue (NVR) by extraction, ionic extractables (Na, K, Cl, F) by ion chromatography, and fibre release. Test reports are available on request for qualification and audit.

How do I order cleanroom wipers from Phil Industries Singapore?

Email kenneth@phil-industries.com.sg, WhatsApp +65 9853 9030, or call +65 6555 1745 with the wiper size, material, ISO class and quantity. Quotations are returned within one working day. Related categories Cleanroom wipers are one part of the particle-control kit. Round out your gowning and bench supplies with cleanroom paper, cleanroom sticky rollers and cleanroom consumables. For a complete catalogue across all 15 sub-categories, return to our ALL ESD Products hub. Reviewed by the Phil Industries Technical Team — Singapore industrial & ESD specialists since 2009. Browse our cleanroom consumables or full ESD product range.

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