Hess Pumice Grade 3/8 Fines Hess Grade 3/8 fines:50 lbs. (full-sized production bag) with some pumice sand blended

with some pumice sand blended in as well

dried and screened (graded) for use as a soilless grow media and as a seed and cutting propagation media

Pumice stones sized between 3/8 and 1/8 inches (average)

The natural micro structure of a pumice stone—a foamed-stone web of air-filled vesicles—classifies it as a cellular solid

Use in lighweight mortars and as an additive to the lightweight craft aggregate when more sand content is desired

Hess Pumice Grade 3/8 Fines Hess Grade 3/8 fines:50 lbs. (full-sized production bag) with some pumice sand blendedTypically used for: lightweight aggregate for block and crafted stone products, soil conditioner, lightweight engineered soils amendment, spill absorbent, bulking agent.