The present invention provides wood preservative compositions comprising
micronized particles. In one embodiment, the composition comprises
dispersions of micronized metal or metal compounds. In another
embodiment, the wood preservative composition comprises an inorganic
biocide comprising a metal or metal compound and organic biocide. When
the composition comprises an inorganic biocide and an organic biocide,
the inorganic biocide or the organic biocide or both are present as
micronized particles. When compositions of the present invention are used
for preservation of wood, there is minimal leaching of the metal and
biocide from the wood.