Qualifying a Second Source Without Full Re-Validation
A second source is insurance until it becomes a change control. How to build an equivalence file that satisfies quality without repeating…
Cost Per Clean Wipe: The Number Missing From Most Quotes
Price per box is the least useful number in a consumables negotiation. Here is how to build a cost-per-task model that survives a budget…
Optics Cleaning: When a Wiper Scratch Costs More Than the Tool
A coated optic can be destroyed by a single dry pass with the wrong cloth. How to choose a wipe for coated, polished and thin-film…
W2301 Universal Wiping Cloth (X7)
A long, narrow 22 × 42 cm cloth in a pop-up box — sized for rails, edges and equipment faces where a square sheet is awkward.
W2203 Universal Wiping Cloth (X6)
A square 30.5 cm cloth, quarter-folded and bagged — the format most line-side operators reach for first.
W2102 Universal Wiping Cloth (X5)
The 23 × 34 cm universal cloth on a perforated roll — a controlled sheet size for benches that go through a lot of small wipes.
IEST-RP-CC004: What Wiper Test Methods Actually Measure
Biaxial shake, wet and dry particle counts, fibre release, sorption and extractables. A plain-language guide to what each wiper test…
Wiper Sizing: GSM, Sheet Area and Real Coverage
A 70 GSM wipe is not automatically twice the wipe of a 35 GSM one. What GSM actually measures, how sheet area changes the number of passes…
IPA Compatibility: What Solvent Wiping Does to the Wiper
Isopropyl alcohol is treated as a default cleaner. It is also a solvent with real effects on fibre, binder and edge finish. What changes…
Wiping Cloths vs Wiping Papers: Which Belongs in Your Room?
They look interchangeable on a bench and behave nothing alike under a solvent. A practical comparison of cloth and paper wipers, and the…
ISO 14644-1 in Practice: Choosing a Wiper for Each Class
The standard gives you a particle limit, not a consumable specification. How to translate a class into an edge finish, a fibre choice and…
Where Cleanroom Wipes Actually Fail: Four Transfer Routes
A wiper that passes a particle count can still put particles on your product. The difference is how it is used. Four transfer routes, and…
Semiconductor Fab Wipes: Particles, Metals, Surprises
In a fab, a wipe is judged on what it leaves behind at the trace level: particles, ions, metals and static. A practical look at where…
G1202 Pre-Wetted Scrubbing Wipes
A green meltblown wipe pre-wetted with a scrubbing solution, in a 90-sheet canister for oil, ink and workshop soil.
Cleanroom Wiper Selection: A Spec-First Framework
Most wiper decisions start with a catalogue page. They should start with four numbers: the surface, the solvent, the class and the disposal…
F1103 Cleanroom Face Masks, 18 × 9 cm
A smaller three-ply ES mask with OP ear loops, for visitors and operators who find the 21 cm mask too wide.
WFS703 Wide Foam Cleanroom Swabs
A 180 mm swab with an 18 mm foam head — for cleaning wide channels and connector shells without a wipe.