Berkshire CHNW51220, Choice 500 Nonwoven Wiper, 12"x12", Case of 4,000
Berkshire CHNW51220, Choice 500 Nonwoven Wiper, 60% Cellulose / 40% Polyester, 12" x 12", Case of 4,000
The Berkshire Choice 500 12" x 12" is a thermally bonded nonwoven cleanroom wiper constructed from a 60% cellulose / 40% polyester blend, offering the same binder-free construction and broad chemical compatibility as the 9" x 9" CHNW50920 in a larger format for applications requiring broader surface coverage per wipe. The higher cellulose content delivers excellent absorbency for a nonwoven wiper, while the polyester component provides structural integrity and low lint performance. Thermal bonding eliminates chemical binders, making the Choice 500 compatible with IPA, acetone, and most common cleanroom cleaning agents without risk of extractable contamination.
MTE Solutions stocks the CHNW51220 in cases of 4,000 sheets (200 wipes per pack, 20 packs per case). The 12" x 12" format is appropriate when wiping tasks involve larger surface areas — equipment enclosures, benchtops, or tool housings — where a 9" x 9" wiper would require multiple passes. For the same wiper in 9" x 9" format, see the CHNW50920. For lower lint performance in the 12" x 12" format, see the Choice 600 (CHNW61220).
Specifications
| Attribute | Detail |
|---|---|
| Part Number | CHNW51220 |
| Brand | Berkshire |
| Series | Choice 500 |
| Size | 12 in x 12 in |
| Material | 60% Cellulose / 40% Polyester (Nonwoven) |
| Bonding | Thermally Bonded (No Chemical Binders) |
| ISO Classification | ISO Class 5 – ISO Class 8 (Class 100 – Class 100,000) |
| Pack Quantity | 200 wipes per pack |
| Case Quantity | 4,000 sheets (20 packs) |
| Wipe Type | Dry |
| Chemical Compatibility | IPA, acetone, most common cleanroom solvents |
| Application | Large surface cleanroom wiping, ISO Class 5–8, equipment enclosures, benchtops |
Frequently Asked Questions
When should I choose the 12x12 over the 9x9 Choice 500?
Choose the CHNW51220 when your wiping tasks involve larger surface areas — equipment enclosures, benchtops, or tool housings — where a 9" x 9" wiper would require multiple passes. For standard bench-level or component cleaning, the 9" x 9" CHNW50920 is more practical and cost-effective per case.
What is the difference between the Choice 500 and the Choice 600 in 12x12?
The Choice 500 (CHNW51220) is 60% cellulose / 40% polyester — higher cellulose content gives it better absorbency. The Choice 600 (CHNW61220) is 55% cellulose / 45% polyester — higher polyester content gives it lower lint generation. Choose the 500 when absorbency is the primary requirement; choose the 600 when lower lint is more important.
What does “thermally bonded” mean and why does it matter?
Thermally bonded means the fibers are fused together using heat rather than chemical adhesives or binders. The absence of chemical binders means there are no extractable compounds that could leach into your process or react with solvents — making the Choice 500 broadly chemically compatible with IPA, acetone, and most common cleanroom cleaning agents.
What ISO cleanroom class is the Choice 500 rated for?
The CHNW51220 is rated for ISO Class 5 through ISO Class 8 environments (equivalent to Federal Standard 209E Class 100 through Class 100,000).
How many wipes come in a case of CHNW51220?
Each case contains 4,000 wipes — 200 wipes per pack, 20 packs per case.
Can the Choice 500 be used with IPA or other solvents?
Yes. The thermally bonded construction with no chemical binders makes the Choice 500 broadly compatible with isopropyl alcohol (IPA), acetone, and most common cleanroom solvents.
