Contents
- Short answer
- Two sheets, two jobs
- What to ask about the test
- Pack and traceability
- What not to print
Short answer
GSM does not make a cleanroom wipe. The current M-3 type sheet is viscose and polyester, 35–55 gsm, 25×25 cm, perforated roll or folded sheets. The low-lint sheet is 50% woodpulp and 50% polyester, 50–80 gsm, in cuts such as 25×30 cm, 32×40 cm, or 35×35 cm. The first is the candidate for sensitive equipment when your SOP allows it. The second is a controlled-assembly wipe, not a sealed-grade substitute.
Two sheets, two jobs
| Question | M-3 type | Low-lint woodpulp–polyester |
|---|---|---|
| Fiber | Viscose and polyester | 50/50 woodpulp and polyester |
| Published weight | 35–55 gsm | 50–80 gsm |
| Published cut | 25×25 cm | 25×30, 32×40, 35×35, or another cut |
| Fit | Equipment and zones that already require low emission | General assembly with a lint limit |
| Poor fit | A grease rag | An SOP that names a sealed grade |
Industry page: electronics and cleanroom. Plant-floor materials (not a cleanroom spec): spunlace vs meltblown vs woodpulp–PP.
What to ask about the test
Ask for the lint or particle method your customer already uses, the wipe-down chemical, and whether the sheet is used dry or with solvent. A higher gsm band does not “clean more.” It changes hand-feel, liquid hold, and how many sheets fit in a bag. If the procedure names a grade (for example an M-3 style), quote that sheet instead of a similar shop towel.
Mesh versus plain on the M-3 type sheet is a handling choice. Say which one the line already trained on.
Pack and traceability
Device and electronics buyers look at the bag, the lot, and whether the carton survives the warehouse. Say it in the first email: double bag or not, count per bag, and whether a lot label is required. This page does not publish a particle count. If your market needs a report, request it in the quote to info@wesbaclean.com.
What not to print
Do not write “ISO cleanroom” or “lint free” without the method PDF. Products: M-3 type cleanroom wipes and low-lint nonwoven wipes.