Polyguard TERM Particle Barrier can protect several points on the structure from termite entry. Two of these, shown in the above graphics, are the exposed concrete perimeter and bath traps. The use of particle barriers to block termite entry has been known since the 1950’s. The concept was field tested by Eberling, University of California at Berkeley, in 1956. Significant development work was done by Yamamoto, University of Hawaii in the 1980’s.
Polyguard’s particle barrier consists of sub angular or angular quartz particulates with mesh sizes between 8 and 16. These sizes are shown to block both the Formosan and the native American species. In the mainland U.S., extensive work on particle barriers has been done at the University of Florida and Texas A&M University.
