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Corrosion Information

In January 2004, the pressure treated timber industry voluntarily shifted from using CCA-C to alternative chemical treatments. To determine this impact on timber connectors, Simpson Strong-Tie conducted industry approved tests and found that many of the alternatives were more corrosive than CCA-C. Because this is an important safety issue, we have devoted several pages of our website to the issue of corrosion. We hope you find it informative and helpful in making decisions about this topic.

For Quik Drive® products: We recommend Stainless Steel, N2000®, and Quik Guard© as materials/coatings that can, in appropriate environmental conditions, be used with the following pressure treated lumber: ACQ-C, ACQ-D, ACQ-D Carbonate, CBA-A, CA-B, SBX, MCQ and CCA.

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