America’s choice for pressure treated lumber is now available in the Caribbean!
For over 35 years consumers across the Southern United States have been turning to Great Southern Wood Preserving for the best pressure treated lumber products available. They know that for the best protection against rot, fungal decay and termite attack all they need to look for is the little “yella tag.” It represents quality, and they know it means their project will withstand the weather season after season. Now America’s choice for pressure treated pine is available in the Caribbean!
Here’s why YellaWood® brand products are trusted for outdoor building projects:
- Durable and designed for outdoor construction.
- Use for many different building projects such as fences, structural lumber, sill plates, outdoor furniture, patios, decks, garden edging, and landscaping structures.
- Copper-based preservative with a co-biocide.
An Exciting New Treatment
The MicroPro™ preservative system used to produce Micronized Copper Quaternary (MCQ) combines the well-established effectiveness of copper and an organic quaternary compound in a revolutionary approach to the pressure treatment process. By capturing copper in “sub-micron” sized particles and suspending them in solution before applying them to wood by pressure treatment, the performance of MCQ treated lumber is enhanced while providing protection against rot, fungal decay and termite attack.
Characteristics of the MCQ Preservative
MCQ treated products have many benefits including improved corrosion characteristics and, thanks to its lighter appearance, improved painting and staining capabilities. MCQ products are available in a number of specialty treatments like built-in water repellents, and MCQ products are also available with beautiful color pigmentations. In addition, they are long-lasting, durable, clean to the touch, have no objectionable odor, and provide protection from rot, fungal decay and termite attack. More than three years of outdoor exposure testing shows that products treated with MCQ preservatives offer superior product benefits compared to other copper based wood preservatives. YellaWood® brand products with MCQ preservatives are available in Southern Yellow Pine and South American Pine species.
Specialty Treatments
YellaWood® brand products with MCQ preservatives may be formulated with a number of specialty additives depending on the desired product application. One such specialty treatment is a product with built-in water repellents, which provide extra protection from the elements.
 Another popular treatment option available with MCQ is the impregnation of a color pigment into the wood. This pigmentation process allows consumers to enjoy treated wood with the popular look of cedar and redwood at a more affordable price.
Weathering Information
 This innovative treating process allows consumers to enjoy wood the way Mother Nature intended; meaning, no more dark-green tint to wood. Thanks to the MicroPro™ technology, YellaWood® brand products with MCQ preservatives have a lighter, fresher, and more natural appearance! It is extremely important to pay attention to the
end tags to make sure the desired treatment is indicated since freshly treated MCQ products will appear only slightly greener than untreated wood. Over time, MCQ products will weather to a honey brown and then to a familiar, and often desired, gray. Outdoor exposure testing has shown that YellaWood® brand products with MCQ preservatives treated with color pigments will retain their colors longer than true redwood and cedar products.
Fastener Information
YellaWood® brand pressure treated pine with MCQ preservatives exhibits corrosion rates on metal products similar to CCA pressure treated wood and untreated wood.
- For interior or exterior applications use fasteners and hardware that are in compliance with the manufacturer’s recommendations and the building codes for their intended use.
- For exterior applications galvanized protected connectors coated at a G90 level or its equivalent (0.90 oz./ft²) and other hardware and fasteners for exterior use can be used in direct contact with wood treated with MCQ preservatives.
- Aluminum building products may be placed in direct contact with YellaWood® brand products with MCQ preservatives used for interior uses and above ground exterior applications such as decks, fencing, and landscaping projects. Examples of aluminum products include siding, roofing, gutters, door and window trim, flashing, nails, fasteners and other hardware connectors. However, direct contact of MCQ treated products and aluminum building products should be limited to construction applications that provide proper water drainage and do not allow the wood to be exposed to standing water or water immersion.
We recommend you contact the aluminum building products manufacturer for its recommendations regarding use of their aluminum products in contact with MCQ treated wood in ground contact applications or when exposed to salt water, brackish water, or chlorinated water, such as swimming pools or hot tubs.
Also check with the aluminum building products manufacturer regarding compatibility with other chemicals and cleaning agents. Contact Osmose for further information on aluminum contact use in commercial, industrial, and specialty applications such as boat construction.
MCQ Snapshot
- Treatment Type: Micronized Copper Quaternary
- Protection from rot, fungal decay and termite attack: Yes
- Paintable/Stainable: Yes
- Color Pigments: a cedar tone for a look similar to cedar products or a brown tone for a look similar to redwood products
- Corrosion Characteristics: Similar to CCA treated and untreated wood
- Aluminum Contact: Yes
Important Information
- Consult the end tag to determine which preservative or preservative system was used in the treatment of that particular product. MCQ treated products may be used in direct contact with aluminum building products when limited to construction applications that
provide proper water drainage and do not allow the wood to be exposed to standing water or water immersion.
- Use fasteners and other hardware that are approved for the intended use with MCQ treated products.
- Do not burn preserved wood.
- Wear a dust mask and goggles when cutting or sanding wood.
- Wear gloves when working with wood.
- Some preservative may migrate from the treated wood into soil/water or may dislodge from the treated wood surface upon contact with skin. Wash exposed skin areas thoroughly.
- All sawdust and construction debris should be cleaned up and disposed of after construction.
- Wash work clothes separately from other household clothing before reuse.
- Preserved wood should not be used where it may come into direct or indirect contact with drinking water, except for uses involving incidental contact such as fresh water docks and bridges.
- Do not use preserved wood under circumstances when the preservative may become a component of food, animal feed or beehives.
- Do not use preserved wood as mulch.
- Only preserved wood that is visibly clean and free of surface residue should be used.
- If the wood is to be used in an interior application and becomes wet during construction, it should be allowed to dry before being covered or enclosed.
- If you desire to apply a paint, stain, clear water repellent or other finish to your preservative-treated wood, we recommend following the manufacturer’s instructions and label of the finishing product. Before you start, we recommend you apply the finishing product to a small exposed test area before finishing the entire project to ensure it provides the intended result before proceeding.
- Mold growth can and does occur on the surface of many products, including untreated and treated wood, during prolonged surface exposure to excessive moisture conditions. To remove mold from the treated wood surface, wood should be allowed to dry. Typically, mild soap and water can be used to remove remaining surface mold. For more information visit www.epa.gov.
- Projects should be designed and installed in accordance with the National Design Specifications® (NDS®), the Wood Handbook and applicable building codes.
- This product is offered for sale and is sold “as is” and without warranty and all expressed or implied warranties, including, without limitation, warranties of merchantability, fitness for a particular purpose, title or non-infringement are disclaimed.
Disposal Recommendations:
Preserved wood may be disposed of in landfills or burned in commercial or industrial incinerators or boilers in accordance with federal, state and local regulations.
* Electroplated galvanized fasteners and metal products are typically not accepted by the building codes for use in exterior applications, regardless of the type of wood used.
YellaWood® brand products with MCQ preservatives (to include YellaWood® Export) are pressure treated with Micronized Copper Quaternary using the MicroPro™ copper preservative system. This product is offered for sale and is sold “as is” and without warranty and all expressed or implied warranties, including, without limitation, warranties of merchantability, fitness for a particular purpose, title or non-infringement are disclaimed.
Great Southern Wood Preserving, Inc., its affiliates, subsidiaries and TSO providers, use Osmose, Inc. wood preserving products (MCQ), methods, systems and technology in the treatment of YellaWood® brand products. For more information visit www.osmose.com.
For important handling and other information concerning our products or for a copy of the YellaWood® brand MCQ Material Safety Data Sheet (MSDS), or write us at P.O. Box 610, Abbeville, AL 36310.
YellaWood® and the yellow tag are federally registered trademarks of Great Southern Wood Preserving, Inc. MicroPro™ is a trademark of S-T-N Holdings, Inc.
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