Preventex^® products have withstood considerable testing. Oregon State University and Buckman Laboratories conducted the ASTM 3274 test on wood and drywall materials without failure. "We concluded that your products were effective at preventing mold growth under the conditions of our test."

Drywall after 24 days in water in an environment of 90 degrees Fahrenheit with 75% relative humidity. The molded section of the drywall was not treated while the other two sectons were treated with Preventex^®. All three sections were inoculated with mold prior to testing.