Techclean Purwipe

Sku Number Name Size Units
Per Case
Price
Per Case
Case
Qty
 
2355-100 9"x9" flat wipe 100 ct 12 $632.64
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100% polyester wipe is a strong, low­linting wipe that is ideal for SMT stencil cleaning and PCB rework. Tear resistant to allow cleaning around leads without fraying.
 

Features & Benefits

  • Class 100 cleanroom qualified
  • Very low particulate count
  • Tear resistant

FAQ's

Which wipe is best with aggressive solvents?

Solvent compatibility is another factor to consider when choosing a wipe. If the wipe is to be used with a solvent in the cleaning application, then the wipe must be selected with the solvent in mind. Solvent retention and absorbency may also be required. The wipe must the able to absorb a given solvent and retain the solvent within the fabric of the wipe for a sufficient amount of time, without premature release of the solvent. Knitted polyester and nylon wipes have the highest compatibility with a wide range of organic solvents and weak acids. Techclean Purwipes and Anti-Static Wipes have good absorbency, excellent durability when cleaning rough surfaces, and low ionic and organic residue contamination. The polyester/cellulose blended Techclean Wiper and Blue Maintenance Wipes have excellent resistance to solvents and weak acids, good durability when cleaning rough, abrasive surfaces, high particle entrapment and low particle and ionic contamination.  They are an economical choice for general cleaning and spill clean-up.

What wipe is best for rough surfaces?

Any wipe will produce particulates depending on the amount of abrasion it receives in use, so abrasion resistance should be considered. Wipes usually release the most particulates from their edges, so using a sealed-edge wipe will greatly reduce the particulate burden.  Heat cutting is a common method of creating a sealed edge. A hot knife cuts the edge and simultaneously fuses all the loose ends on the wipe, as in the Techclean Purwipe sealed edge poly wipes. The texture of the wipe should also be considered when critical or sensitive surfaces are involved in the application. Some wipes can abrade some critical coated optical surfaces and should therefore be avoided in such applications. TechClean Twill Wipe (2357-100) is a knit cotton wiper that is also very good on abrassive surfaces.

What type of wipe is best for cleanrooms?

Cleanroom wipes used for critical applications are almost always knitted synthetic fibers. Knitted polyester fabric, like used for Techclean Purwipe (part #2355-100), is the most popular wipe material for cleanrooms. Knitted polyester is made clean, contaminants can easily be removed from knitted polyester in a cleanroom laundry, and polyester is relatively inexpensive. Non-woven wipes do not offer the advantage of ease in cleaning as their composition causes them to disintegrate in a cleanroom washing machine or cleanroom drier.  Techclean Anti-Static Wipes (#2362-150) are also woven polyester, but include stripes of DuPont’s NEGA-STAT carbon yarn. This prevents static generation, which is especially important when dry wiping. Anti-Static Wipes are packaged in a class 10 cleanroom, so ideal for cleanroom applications. This wipe is widely used on smart phone and pad computer screens in assembly or repair operations. Wiping glass screens with standard polyester will tend to generate static and attract dust.

Articles

Choosing the Best Wipe for Your Application
In choosing the best wipe for a particular application we need to “match the wipe to the job”. When choosing a wipe for a particular application you need to consider such factors as cleanliness, abrasion resistance, solvent compatibility, and absorbency.
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