Expanded polystyrene is a stable, durable material that is invulnerable to the action of water, moisture and soil organisms. SUSTAINABLE MATERIAL
Its neutral biological characteristics means it has no nutritional value for microorganisms and small animals and poses no risk to the water table.
Will not corrode or rust.
Highly Resistant! Low percentage of water absorption, if ever damaged the buoyancy is not affected. Can be used in freshwater or saltwater.