Cobra Rods

Cobra Rods

five star

Borate Rods

Cobra™ Rods are a way to spot treat decay prone areas such as log ends that are already coated with a finish.

Once inserted into damp or wet wood the borate / copper complex in Cobra Rods dissolves spreading the active ingredients into areas surrounding the rod. This eliminates active decay fungi and helps prevent rot for 8 to 10 years.

Cobra Rods are 7/16" in diameter and are two inches in length. A 1/2" diameter drill bit is used for installation. The installation holes may be plugged with the accompanying plastic plugs or Energy Seal.

A typical six to eight inch round log end will require two 2” long Cobra Rods inserted within 4 inches of the butt end.

Cobra™ Rods are a trademark of Genics Inc., Spruce Grove, Alberta Canada

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Bag of 10
cobra rods


Use a ½” drill bit to drill hole. Drill hole to a depth of at least 3 ¾”. Clean out the hole and insert the Cobra Rod. Insert the plastic plug into the hole.
Using a screw driver twist the plug clockwise. Make sure the top of the plug sets about ¼” below the surface of the wood. Fill the hole with appropriately colored Energy Seal. Smooth with tool or finger. After a few hours the Energy Seal may be stained to match the surrounding area.


five star T Matthews in TN (03/02/15) - "We use cobra rods when we have soft areas in log posts and handrails to keep the rot from going any further."

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