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Bostitch Solutions for Changes to Pressure Treated Lumber
Bostitch® Thickcoat™ nails
0 out of 10 exhibit red rust
Competitor A (HDG)
10 out of 10 exhibit red rust

Competitor B (HDG)
10 out of 10 exhibit red rust

 Salt Spray (Driven into ACQ Lumber)

Salt Spray (Suspended)


Competitor A (HDG)    Competitor B (HDG)

Bostitch® Thickcoat™ nails - 0 out of 10

Bostitch Solutions for Changes to Pressure Treated Lumber

For many years, the industry standard wood preservative has been CCA (Chromated Copper Arsenate). Effective January 1st, 2004, the pressure treated wood industry voluntarily agreed to remove arsenic from the wood treating process. Internal and independent testing has proven that the “new” pressure treated wood formulations (Alkaline Copper Quaternary - ACQ, Copper Azole, etc.) are more corrosive to fasteners

Bostitch recognizes the need to offer fastener solutions to address code official requirements, wood manufacturers recommendations, and most of all, construction professionals concerns. For the most extreme corrosive environments, stainless steel fasteners are the best recommendation. Bostitch currently offers grade 304 stainless steel fasteners in all types of collation. For fasteners used with the new pressure treated wood in less corrosive environments, Bostitch has you covered.

For our full line of wire-welded stick and coil nails, Bostitch introduces THICKCOAT™ galvanization. This new technology in galvanization was designed specifically to protect against today’s more corrosive pressure treated lumber. This new coating technology uses an enhanced electro-galvanization process to apply more than 2˝ times the amount of zinc than conventional electro-plating. Coupled with this dense zinc coating is a rust-resistant chromate overcoat. AWPA E-12 laboratory testing has shown that THICKCOAT™ galvanized fasteners corrode at approximately half the rate of our leading competitors.

For plastic collated round head strip nails, Bostitch offers a full line of Hot Dipped Galvanized nails. Our Hot Dipped Galvanized nails meet or exceed ASTM A153 zinc weight specification. This ensures a thick zinc coating to provide superior corrosion resistance.

Bostitch continues to conduct the most extensive corrosion testing of fasteners in the industry. Our testing is conducted in accordance with the ASTM B117 or AWPA E-12 specifications. This testing is what gives us the confidence to recommend our stainless steel, Thickcoat™ galvanized and hot dipped galvanized fasteners for use in the new pressure treated wood.

Testing conducted per ASTM B 117




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