Sansin Impel Rods

Log homes present many challenges when it comes to wood protection. Because logs may often contain moisture content levels of over 25%, a poorly-protected log can be very susceptible to wood decay and insect infestations.

The Impel® Rod is a highly concentrated, solid-formed, water-diffusable boron rod derived from a naturally occurring preservative element. The Impel Rod is inserted into log ends where it remains inactive until moisture contents rise above approximately 25% - when combined with water, the Impel Rod diffuses boric acid, a natural decay inhibitor that fights fungi and insect infestations. As the rod slowly dissolves, the moisture stream of the wood itself carries the boric acid through the wood fibers to saturate and protect any wet areas.

When the wood dries and moisture levels drop, the fungicide becomes dormant and acts as a reserve, ready to reactivate should conditions conducive to decay re-occur. The Impel Rod offers the only effective decay control system that protects logs internally. When combined with periodic wood preservative treatment, the Impel Rod is extremely effective protection against wood decay. In addition to log ends and corners, the Impel Rod is recommended for window and door framings, joist ends, utility poles, railway crossties, structural timbers and a wide variety of deck, flooring and roofing applications.