Berkshire CHKE09.14, Choice Edge, Polyester Knitted, 4-Side Border SE, Laundered, 9" x 9", Case of 1,400

The Berkshire Choice Edge is a 100% polyester knitted cleanroom wiper featuring a distinctive 4-side border sealed edge — a construction that sets it apart from standard ultrasonically sealed wipers. Rather than sealing only the cut perimeter, the Choice Edge incorporates a no-run interlock border on all four sides, which virtually eliminates fiber shedding even under aggressive wiping pressure. Laundered in an ISO Class 4 cleanroom, the CHKE09.14 is rated for ISO Class 3 through ISO Class 5 environments and is particularly well-suited for applications where wiper integrity during use is as important as initial cleanliness — such as wiping optical surfaces, precision instruments, or critical process equipment where a fraying edge would be unacceptable.

MTE Solutions stocks the CHKE09.14 in cases of 1,400 sheets (100 wipes per pack, 14 packs per case). The 9" x 9" format covers the standard cleanroom bench footprint, and the 4-side border construction makes this wiper a strong choice for facilities that have experienced edge-shedding issues with standard sealed-edge wipers or that require the highest level of edge integrity for their process validation documentation.

Specifications

Frequently Asked Questions

What makes the Choice Edge different from the Choice 700?
Both are 100% polyester knitted wipers laundered in an ISO Class 4 cleanroom, but the Choice Edge features a 4-side border sealed edge with a no-run interlock construction on all four sides. The Choice 700 uses a standard ultrasonically sealed perimeter edge. The Choice Edge’s 4-side border virtually eliminates fiber shedding even under aggressive wiping pressure, making it the preferred choice when edge integrity is critical.

What is a “4-side border sealed edge”?
A 4-side border sealed edge means all four sides of the wiper — not just the cut edges — incorporate a no-run interlock border that prevents fiber unraveling. This construction is more robust than a standard ultrasonically sealed edge and is particularly valuable in applications where wipers are used with significant pressure or friction.

What ISO cleanroom class is the Choice Edge rated for?
The CHKE09.14 is rated for ISO Class 3 through ISO Class 5 environments (equivalent to Federal Standard 209E Class 1 through Class 100).

How many wipes come in a case of CHKE09.14?
Each case contains 1,400 wipes — 100 wipes per pack, 14 packs per case.

Can the Choice Edge be used with IPA or other solvents?
Yes. 100% polyester knitted wipers are highly compatible with isopropyl alcohol (IPA), acetone, and most common cleanroom solvents.

When should I choose the Choice Edge over the Choice 700?
Choose the CHKE09.14 when your process involves aggressive wiping pressure, optical or precision surface cleaning, or when your SOP or validation documentation requires the highest available edge integrity. For standard ISO Class 3–5 bench wiping, the Choice 700 (CH709.14) is a cost-effective alternative.