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Chromated Copper Arsenate (CCA):
Copper Azole - An Alternative to CCA

CCA Table of Contents

Description and Formulations of Copper Azole

Copper Azole is a water-based wood preservative that prevents fungal decay and insect attack; it is a fungicide and insecticide. There are two types of Copper Azole: A (CBA-A), and B (CA-B). Copper azole wood preservative is used for treating a variety of softwood species including southern pine, red pine, ponderosa pine, hem-fir and Douglas fir.

Applications of Copper Azole

Water-based preservatives like copper azole leave wood with a clean, paintable surface after they dry. Copper Azole is registered for treatment of millwork, shingles & shakes, siding, plywood, structural lumber, fence posts, building and utility poles, land and freshwater piling, composites, and other wood products that are used in above-ground, ground contact and fresh water as well as in salt water splash (marine) decking applications.

1 The American Wood-Preservers' Association (AWPA) is the primary standard-setting body for pressure-treated wood. To become standardized by the AWPA, preservative-treated wood must undergo a series of rigorous tests to ensure its durability.

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