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Associate Members

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Wood questions?
Click for answers

Everything you need to know about Western preserved wood is just a click away with the Preserved Wood Tech Library at PreservedWood.org.

The online library offers an extensive collection of downloadable publications, technical sheets and design tools to properly select, specify and use Western preserved wood on almost any project.

Check out the online library!

Associate Members

The leading preservative makers in the country serve as Associate Members of WWPI. These companies conduct extensive research on preservative formulations that balance effective protection of wood against decay fungi and insects with minimizing any impacts on the environment where preserved wood products are used.

Associate membership is also available to companies supplying raw materials such as poles, pilings and lumber or are engaged in a major preserved wood wholesale business.

For information on Associate membership, contact WWPI Executive Director Dallin Brooks at 360-693-9958.


Bridgewell Resources, LLC, Tigard, OR
Chemonite Council, Atlanta, GA
Eco Chemical, Seattle, WA
KMG Chemicals, Houston, TX
Koppers Performance Chemicals, Griffin, GA
Lonza Wood Protection, Smyrna, GA
Nisus Corporation, Rockford, TN
Ruetgers Canada, Inc., Hamilton, ONT
Safer Building Solutions, Clarksburg, CA
Troy Corporation, Florham Park, NJ
Viance, LLC, Charlotte, NC