COARSE expanded perlite consists of particle sizes primarily between 1/8” – 1/2” (2 – 12 mm). It is used
extensively in nursery and potting mixes to improve aeration, drainage, and water-holding capacity in
the soil. Supreme Perlite NATURAL VOLCANIC PERLITE® products are made exclusively from 100%
naturally occurring volcanic glass. Our perlite products are sterile, ultra-lightweight, non-toxic, durable,
incombustible, insulating, asbestos-free, pH-neutral, and are compatible with most other substances.
