About Us

National Exposure Testing is a full service A2LA-accredited corrosion testing lab. We are one of the few laboratories in the country that is 100% dedicated to corrosion testing. This unique dedication allows us to focus on what we do best!

Material Testing

National Exposure Testing is one of the largest corrosion testing laboratories in Ohio. We specialize in Salt Spray, Cyclic Corrosion, CASS, Humidity, Fillform, and Kesternich testing.

Proficiency Program

We are now accepting enrollment for the Proficiency Program.
To register please click here and fill out our registration form.

Testing Supplies

From Arizona dust to mass loss coupons, National Exposure Testing carries a complete line of supplies and premixed solutions for a variety of testing procedures.

National Exposure Testing
3211 Centennial Road
Sylvania, OH 43560 USA
Phone: 419-841-1065


Located in Northwest Ohio, our A2LA-accredited laboratory is minutes away from the Ohio Turnpike and I-75. Our location makes for convenient driving times to many major cities. We currently have 46 test chambers ready to meet your testing requirements.

Our 15,000 sq. ft. facility contains over 46 test chambers of varying sizes- including walk-in cyclic chambers, allowing us to handle large projects. These state-of-the-art walk-in chambers (9’x6’x10′ and 9.5’x7’x8′) are capable of performing many automotive cyclic tests, including GMW14872 and SAE J2334. The variety in sizes and types of test chambers, along with our comprehensive A2LA scope of testing, ensures our customers a broad range of test capabilities.

NET is continuing to expand with additional equipment. Our goal is to be recognized worldwide as the largest independent corrosion lab. Please come and visit and compare.