Coventry Logo

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.

Cleanroom Swabs

Cleanroom Swabs

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

Cleanroom Wipes

Cleanroom Wipes

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

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.

Scientists in Lab

FAQ's

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. 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.

Articles


How Coventry Wipes Reduced Contamination in a Medical Device Manufacturing Process by 90%

Many times simple changes can yield huge results. And this case study is yet another example. Today, we'll review how we helped a catheter manufacturer reduce contamination in their manufacturing process by 90%. They achieved this result without overhauling their entire process -they just switched...
Read This Post

How to Choose The Right Swab for Industrial Applications

Swabs are often thought of as just tufts of cotton fiber wrapped around a stick. And while cotton swabs have their uses, more complex solutions are needed for critical industries like medical device assembly, cleanroom, electronic manufacturing, and PCB assembly.  Swabs are usefu...
Read This Post

Using Black Polyester Cleanroom Wipes: Is It Really Clean?

The whole point of wiping a surface with a cleanroom wipe is to remove contaminants including dust, dirt, oil, greases, soot, getting the flux off and so on. But, after wiping, how clean is the surface? How can it be guaranteed? How can an operator or quality inspector be sure? Visually inspecting t...
Read This Post
You did not finish submitting your information to request a sample