Post-2003 Preservative Types by Product

USE CATEGORY

SERVICE CONDITIONS

COMMODITY

FRACTION OF TREATED PRODUCT

All Water-Borne

Arsenical

Copper

Other

UC3B

Exterior construction Above Ground Uncoated or poor water run-off

Sawn Product

59.4%

0.0%

55.2%

4.1%

Plywood

0.4%

0.1%

0.3%

0.0%

UC4A

Ground contact or fresh water Non-critical components

Sawn Product

17.1%

0.2%

16.9%

0.0%

Posts

1.6%

0.6%

1.0%

0.0%

Plywood

0.4%

0.1%

0.3%

0.0%

UC4B

Ground contact or fresh water Critical components or difficult replacement

Sawn Product

9.5%

0.6%

8.9%

0.0%

Posts

0.1%

0.1%

0.0%

0.0%

Plywood

0.2%

0.1%

0.1%

0.0%

UC4C

Ground contact or fresh water Critical structural components

Sawn Product

0.9%

0.1%

0.7%

0.0%

Round piling

2.6%

2.6%

0.0%

0.0%

Posts

0.0%

0.0%

0.0%

0.0%

UC 4A, B, & C

Ground Contact

Poles

6.4%

6.4%

0.0%

0.0%

Crossties

0.0%

0.0%

0.0%

0.0%

UC5A

Salt or brackish water and adjacent mud zone Northern waters

Sawn Product

0.0%

0.0%

0.0%

0.0%

Piles

0.3%

0.3%

0.0%

0.0%

UC5B

Salt or brackish water and adjacent mud zone NJ to GA, south of SanFran

Sawn Product

0.0%

0.0%

0.0%

0.0%

Piles

0.4%

0.4%

0.0%

0.0%

UC5C

Salt or brackish water and adjacent mud zone South of GA, Gulf Coast, Hawaii, and Puerto Rico

Sawn Product

0.2%

0.2%

0.0%

0.0%

Piles

0.4%

0.4%

0.0%

0.0%

UC 5A, B, & C

Marine Exposure

Plywood

0.1%

0.1%

0.0%

0.0%

Totals

100.0%

12.4%

83.4%

4.1%