Post Guard (known as Cobra Rods)

Canadian Log Home Supply


Post Guard (known as Cobra Rods) Borate Rods

Post Guard 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 the 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.

Post Guard rods are 7/16" in diameter are available in either two or four inch lengths. 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 one 4” long or two 2” long rods inserted within 4 inches of the butt end.

 Product Specifications 
Shelf Life 5 years
Application Temperature 40o to 90o
Application Methods Drill and insert
Surface Preparation Clean and Dry
Bare wood
Frequency Effective for 5-10 Years
Special Instructions Plug hole with

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Coverage rates


2” x 10” lumber 1 rod / linear foot
6”x 6” post 2 rods / linear foot
16” diameter log 4 rods / linear foot


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