Berkshire CHNW60440, Choice 600 Nonwoven Wiper, 4"x4", Case of 12,000
Berkshire CHNW60440, Choice 600 Nonwoven Wiper, 55% Cellulose / 45% Polyester, 4" x 4", Case of 12,000
The Berkshire Choice 600 is a thermally bonded nonwoven cleanroom wiper constructed from a 55% cellulose / 45% polyester blend — the higher polyester content (compared to the Choice 500) delivering lower lint generation while maintaining good absorbency for ISO Class 5 through ISO Class 8 applications. Like all Choice nonwoven wipers, the Choice 600 is thermally bonded with no chemical binders, making it broadly compatible with IPA, acetone, and most common cleanroom cleaning agents without risk of extractable contamination. The 4" x 4" format is the standard small-format size for component cleaning, precision wiping, and confined-space applications where a larger wiper would be impractical.
MTE Solutions stocks the CHNW60440 in cases of 12,000 sheets (300 wipes per pack, 40 packs per case). The 4" x 4" format is appropriate for component-level cleaning, PCB wiping, connector cleaning, and other precision tasks in ISO Class 5–8 environments where a 9" x 9" wiper is too large. For the same wiper in 9" x 9" format, see the CHNW60920. For higher absorbency in the 4" x 4" format, see the Choice 500 (CHNW50920 in 9" x 9"; no 4" x 4" Choice 500 is available).
Specifications
| Attribute | Detail |
|---|---|
| Part Number | CHNW60440 |
| Brand | Berkshire |
| Series | Choice 600 |
| Size | 4 in x 4 in |
| Material | 55% Cellulose / 45% Polyester (Nonwoven) |
| Bonding | Thermally Bonded (No Chemical Binders) |
| ISO Classification | ISO Class 5 – ISO Class 8 (Class 100 – Class 100,000) |
| Pack Quantity | 300 wipes per pack |
| Case Quantity | 12,000 sheets (40 packs) |
| Wipe Type | Dry |
| Chemical Compatibility | IPA, acetone, most common cleanroom solvents |
| Application | Component cleaning, PCB wiping, precision/confined-space wiping, ISO Class 5–8 |
Frequently Asked Questions
What is the difference between the Choice 600 and the Choice 500?
The Choice 600 (CHNW60440) is 55% cellulose / 45% polyester — higher polyester content gives it lower lint generation. The Choice 500 is 60% cellulose / 40% polyester — higher cellulose content gives it better absorbency. Choose the 600 when lower lint is the primary requirement; choose the 500 when absorbency is more important.
Why choose a 4x4 wiper over a 9x9?
The 4" x 4" format is designed for precision and confined-space applications — component cleaning, PCB wiping, connector cleaning, and other tasks where a 9" x 9" wiper is too large to handle accurately or would waste material. The smaller format also reduces the risk of cross-contamination when wiping small, discrete components.
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 600 broadly chemically compatible with IPA, acetone, and most common cleanroom cleaning agents.
What ISO cleanroom class is the Choice 600 rated for?
The CHNW60440 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 CHNW60440?
Each case contains 12,000 wipes — 300 wipes per pack, 40 packs per case.
Can the Choice 600 be used with IPA or other solvents?
Yes. The thermally bonded construction with no chemical binders makes the Choice 600 broadly compatible with isopropyl alcohol (IPA), acetone, and most common cleanroom solvents.
