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Tenino

Copper Naphthenate 17% (2% as Metal) - 1 Gallon - Wood Preservative

    • Based on 351 reviews
Condition: New
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Availability: In Stock.
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Arrives Wednesday, Feb 12
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Features

  • Ready-to-Use Copper Naphthenate 17% (contains 2% copper as metal), meets the AWPA M4 Standard
  • Required by building codes (IBC 2303.1.9 & IRC R317.1.1) on end-cuts of all pressure treated lumber
  • Low VOC (<350g/L) and 100% domestically sourced from recycled copper and reclaimed by-products.
  • Labeled for General Use, and wood treated with Tenino maybe discarded in local landfill
  • Water repellant and both toxic and repellant to termites and other wood destroying insect

Description

Tenino Copper Naphthenate EPA Reg. No. 64405-22-54471 Always read and follow all label directions. For Exterior Use Only! Tenino Copper Naphthenate contains 2% copper as metal as an oil-borne solution, labeled for General Use. This ready-to-use solution in sturdy one gallon resealable jug provides coverage of 100 - 300sq ft., requires no mixing or dilution and may be applied by brush to almost any wood product needing protected from the elements. Treated wood will be protected from infestation of destroying organisms including subterranean termites, drywood termites, wood destroying beetles, powderpost beetles, carpenter ants and decay fungi. It may also be used to protect and prevent warping, swelling, shrinking, and end checking caused by changes in moisture content of wood products, rot, mold, mildew and moss. Tenino can be used for remedial or preventive treatment of standing wooden poles, piling and other existing structures wooden and cellulose utility and construction products including: lumber end cuts timber rail ties posts poles freeway fencing siding boats piers docks boxes roofs shakes cedar shake roofs shingles porches steps fences rails beverage cases Tenino treated wood is suitable for ornamental or planting landscape timbers, ties, wooden seedling trays, outdoor decor, flower boxes and window boxes. Tenino meets the AWPA Standard M4 end-cut requirements for exterior and ground contact field treatments and should be used to fulfill requirements in IBC 2303.1.9, and IRC R317.1.1 whenever pressure treated lumber is cut, or drilled. Tenino is best used to supplement pressure-treated preservative wood protection in aggressive hazard class environments envisioned in AWPA Use Category 4,4B,4C.

Color: Copper


Brand: Tenino


Surface Recommendation: Wood, Metal


Material: Copper,Metal


Size: Gallon


Color: ‎Copper


Brand: ‎Tenino


Surface Recommendation: ‎Wood, Metal


Material: ‎Copper,Metal


Size: ‎Gallon


Item dimensions L x W x H: ‎7 x 4 x 11.5 inches


Item Weight: ‎8.2 Pounds


Finish Type: ‎Copper,Metal


Recommended Uses For Product: ‎exterior


Manufacturer: ‎Copper Care Wood Preservatives, Inc.


UPC: ‎850098004073


Part Number: ‎CCWP1090-1GAL


Item Weight: ‎8.2 pounds


Product Dimensions: ‎7 x 4 x 11.5 inches


Item model number: ‎CCWP1090-1GAL


Is Discontinued By Manufacturer: ‎No


Finish: ‎Copper,Metal


Volume: ‎1 Liters


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 20, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 12

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • Worked great!
Exactly what we needed, Copper Naphthenate is hard to come by in my area (Phoenix metropolitan area) but it’s required by code for new construction and additions. This was easy to apply, definitely turned the wood green to indicate it’s been applied (which was great since our inspector was a little special). The odor is very, VERY strong, (again great because our inspector was a bit special) but that is the nature of the product (It reminds me of a permanent marker) with that being said, the strong odor is temporary. It will diminish as it sets into wood. We were/are doing an addition to our house and the odor carried into the main house for maybe 3 days. Its been a week now, no drywall or insulation yet, and the smell has completely diminished. I’m so glad I could find it in Amazon, because it was nowhere to be found in the Phoenix area. ... show more
Reviewed in the United States on May 2, 2021 by Shawn L.
    • Easy to apply, works well
Used Tenino 2% a number of years ago for additional protection with 4x4 fence posts, and the posts have held up much better than the non-treated ones. Bought this again last month for use on the non-treated posts I'm now replacing after 8 years (the treated posts are still going strong). This also comes in an 8% solution, although not here, that I have used on farm posts in the distant past. I see reviews mentioning the smell - it doesn't seem that strong or offensive to me. Just wear latex gloves while applying this. If you read the MSDS, the solution is largely mineral spirits with the copper naphthenate. ... show more
Reviewed in the United States on October 5, 2023 by CK
    • Used to retreat old RR ties around shed base
Bought 2 years ago and finally got to put on. Extremely runny, almost like water. Soaks right into timber and the bugs run out. Because it's so thin it's hard to apply to the sides of the timber. (easy to use) If it wasn't for decorative patio stones nearby, I would have used a small spray dispenser. Used a cheap nylon bristle brush and it worked fine. I'll let you know next year if the wood is holding up better. Don't understand the "style" category. It's green and smells. Is that a style? This may cause you skin to itch so use a soft brush so it doesn't splatter. ... show more
Reviewed in the United States on May 3, 2024 by Raymond Heffner
    • Well, it depends...
Yes it smells some but I didn't find it sickening or, overpowering though unpleasant. I was outdoors with a light breeze though. Application is a breeze to, seems to penetrate well on the side of soft pine and, of course, the end grain soaks it way up really quickly. I can't speak to effectiveness or, longevity yet but, if it really does contain the ingredients listed on the lable, at those concentrations, I'm sure it'll be fine. CON: But even though the APPLICATION INSTRUCTIONS say you can paint over it with oil base paints and, you can, what it doesn't say is none will stick to it very well. I tried 3 different types of oil base primer (leading brands) after 4 days set time before the first attempt - in warm sunny weather, low humidity - and none stuck to it very well. You could "scoop" it off with your finger nail after 24 to 48 hrs. And the last one was an expensive above the waterline boat primer. I ended up sanding it with 80 grit after getting back down to bare wood (way to easily. ) The sandpaper would clog up as I went along though. Then attacked it with chemicals. I suspected the reason was -speculation- that like other types of these products from the past it contains some type of paraffin, or other waxy substance, that will dissolve in petroleum distillates used as the carrier compound for the active ingredients. Not a bad idea at all, provides a great moisture barrier, just like lead based primers of old. But this felt a little to waxy to me so I tried things that worked when I had to remove color crayon from things we never wanted colored to begin with. The last one that really fixed it was some diluted household ammonia. I tried all the primers again (and I'm talking quarts here thank goodness) in sections and they all stuck much better and with much shorter dry time. This is not scientific, just empirical observation. And, maybe there is some oil base that will just work on top of it. But for sure I would test on some scrap or a small area before committing a whole project to it if you want to paint over it afterwards. ... show more
Reviewed in the United States on November 10, 2019 by J. Miller
    • Does the job!
Does a good job. Negative not returnable, watch the fine print of Prime!
Reviewed in the United States on January 26, 2024 by Mary
    • Smells horrible but soaks in nicely
After having to replace some dock joists after just 12 years, I decided to step up my game this time around. I saw a builder using this stuff on YT and they said it's required by code in some places on end cuts. I've been using a paint brush to apply it on each cut and was surprised at how much the wood soaks it up. It smells horrible so I can't imagine anything alive ever wanting to chew on my joists! I can't speak for durability but it is a similar chemical to what the OEM lumber suppliers use and while not pressure applied, it is an extra layer of protection. Hopefully my joists will outlast me and the next person can worry about it decades from now! ... show more
Reviewed in the United States on August 2, 2023 by Mike L
    • Excellent wood treatment
Review Image by Tabitha Concepcion Tabitha Concepcion
Using for a floating deck - brushing over where wood blocks were cut on the ends or where nail holes / screw holes Use outside - odor is strong but wood soaks this stuff in - seems to almost immediately repel water Time will tell but good stuff. Purchased 2 of these so far
Reviewed in the United States on January 2, 2024 by Tabitha Concepcion Tabitha Concepcion

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