- Pest Pros
- Wood Preservation
- Building Pros
QNAP® copper naphthenate is a copper-based, oil-borne wood preservative that outperforms other preservatives and has a superior environmental profile. Used as a replacement for creosote in railroad ties and as a replacement for pentachlorophenol in utility poles.
QNAP is an 8% oil-borne copper naphthenate solution that is an EPA-registered, non-restricted use/general use preservative also adopted as standard for use by the AWPA (P36). The product is created from recycled copper and by-products of oil refining – making it sustainable from the start.
QNAP has performance better than all other oil-borne/oil type preservatives. Use of QNAP requires no special equipment. Wood treated with QNAP is non-hazardous waste, which allows for recycling or energy recovery.
|AWPA||Oak and Hickory||All Others|
|UC 4A,4B,4C||0.055 or refusal||0.06|
QNAP is an 8% oil-borne copper naphthenate solution that is an EPA-registered, non-restricted/general use preservative also standardized for use by the AWPA (P36). The product is created from recycled copper and an oil refining by-product – making it a sustainable product from the start. QNAP has performance equal to or better than other oil-borne preservatives, requires no special equipment and the treated wood is not a hazardous waste, which allows for recycling or energy recovery.
QNAP oil borne copper naphthenate is the perfect preservative, providing both excellent wood decay protection and the superior waterproofing qualities of an oil born preservative. QNAP treatments result in wood that is cleaner to the touch, with minimal excess preservative coming in contact with the environment. QNAP is the green choice in preservatives because it is not a restricted use pesticide. With durability better than other oil-borne preservatives, it is fast becoming the first choice for bridge timbers, barn timbers, glulam beams, salt storage domes, protector boards and highway railings.
QNAP copper naphthenate is the perfect solution for treating fence posts, vineyard posts, split rails and landscape timbers. Treatments can be made using dip treatments, pressure treatments or thermal butt treatment.
Copper Naphthenate is the best wood preservative available to contractors and do-it yourself consumers. It is perfect for use when wood will be in contact with the ground and as an end cut treatment when you cut pressure treated wood.
Copper naphthenate is available at many building supply stores and hardware stores.
Section 7 of AWPA Standard M-4 from 2008 describes preservation systems for field treatment of wood:
"The appropriateness of the preservation system for field treatment shall be determined by the type of preservative originally used to protect the product and the availability of a field treatment preservative. Because many preservative products are not packaged and labeled for use by the general public, a system different from the original treatment may need to be utilized for field treatment. Users shall carefully read and follow the instructions and precautions listed on the product label when using these materials."
Copper Naphthenate preservatives containing a minimum of 2.0% copper metal are recommended for material originally treated with copper naphthenate, pentachlorophenol, creosote, creosote solution or waterborne preservatives. Use of copper naphthenate preservatives with a minimum of 1.0% copper metal is appropriate in those regions of the country where the higher concentration material is not readily available.
Inorganic Boron preservatives are limited to use in applications not in contact with the ground and continuously protected from liquid water. They may be used for field treatment of material originally treated with any waterborne treatment as long as this condition is met. Solutions shall have a minimum concentration of 1.5% (B2O3 basis).
QNAP1 - RTU Copper Naphthenate, Oil-based 1% Cu active
QNAP2 - RTU Copper Naphthenate, Oil-based 2% Cu active
QNAP1W - RTU Copper Naphthenate Water-based, 1% Cu active
Liquid DOT for end cut treatment of pressure treated wood used in the interior of structures. PenaShield can also be used as a general wood preservative outdoors if wood will be painted or stained and on any interior wood.