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Borate Rods As An On-Site Remedial Treatment For Control Of Decay In Wood Decks, Mark G. Dietz, Elmer L. Schmidt
Borate Rods As An On-Site Remedial Treatment For Control Of Decay In Wood Decks, Mark G. Dietz, Elmer L. Schmidt
Journal of the Minnesota Academy of Science
A conventional wood recreational deck constructed with spruce-pine-fir lumber was sampled for active growth of wood decay fungi before and 10 months after remedial preservation treatment with fused disodium octaborate rods (IMPEL®) at boric acid levels from 1.5-10 kg/m3. Extent of boron distribution was observed with a color indicator dye (curcumin) after 10 months exposure. Remedial treatment with the boron rods. was nearly 100% effective. Active decay cultures from treated material were found only in samples obtained from boards treated at the inhibition dosage level (1.5kg/m3) of boric acid. Suggested lethal dosages (>3kg/m3) were effective in all cases as …