Products for Controlled Environment & Cleanroom
Coventry™, a brand of ITW Chemtronics®, is known globally for solving the most critical precision cleaning challenges. Coventry has a wide variety of cleanroom swabs and wipes to meet your most demanding applications. The wrapped swab, uniquely designed with no seams or edges, prevents scratching of delicate surfaces. Also included in the product line are sealed fabric, sealed foam, and static control. You’re sure to find a swab from Coventry that meets your particular need.
Coventry™ cleanroom swabs and applicators keep contamination out of your process, improve yield, and perform consistently, shipment to shipment. To manufacture a Coventry swab, we start with engineered clean materials. Polyester swab and wipe components are laundered first in our Class 10 (ISO Class 4) cleanroom.View Products
Coventry™ cleanroom wipes keep contamination out of your process, improve yield, and perform consistently, shipment to shipment. To manufacture a Coventry swab, we start with engineered clean materials. Polyester materials are laundered first in our Class 10 (ISO Class 4) cleanroom.View Products
High Purity Solvents
Coventry™ solvent cleaners, swelling agents and carrier fluids are formulated and manufactured to exacting specification to provide unparalleled performance.View Products
Ask us how we can improve your process.
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 Coventry Poly-Wipes (part #6209), 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.
Are swabs available for cleaning static sensitive electronics?
Yes, Chemtronics offers a full line of ESD swabs. They include foam, knit polyester, or knit microfiber heads with static dissipative handles. The proprietary handle material has surface resistivity of 1.0 x 10_10 ohms/sq, and will dissipate 99% of (5 kV) charge in 0.5 seconds. This avoids static generation, and can dissipate a charge when the user is grounded.
Are Q-tips / cotton bud swabs lint free?
No, cotton bud swabs (aka Q-tips) can’t be considered lint-free. Cotton tends to lead behind threads and particulates. Open cell polyurethane foam swabs are a common, very clean replacement for cotton. If harsh solvents are being used on the swabs, or even more cleanliness is needed, knit polyester or microfiber swabs are an excellent choice.
What is a foam swab? / Why should I use a foam swab?
While cotton bud swabs (aka Q-tips) are commonly used for all kinds of precision cleaning, foam swabs are commonly used to reduce contamination from cotton threads and particulates. Foam swabs are usually made of open cell polyurethane for maximum cleanliness and absorbency.
What is a sterile swab?
Sterile swabs are free from bacteria or other living microorganisms. Common methods for sterilization include autoclaves, ETO (ethylene oxide gas), and Gamma irradiation. Sterile swabs are generally used for biological sample collection to avoid sample contamination, and for medical use to avoid infection.