Perlite

Perlite (CAS 93763-70-3) is a naturally occurring volcanic glass processed through high-temperature expansion into a lightweight, porous mineral.

Where is Perlite used?

• Construction: lightweight plasters, ceiling tiles and insulating concrete that reduce structural weight while improving thermal performance
• Agriculture and horticulture: soil amendment and growing medium component whose open structure improves aeration and drainage in potting mixes and hydroponic systems
• Cleaning: mild abrasive and thickening agent in scouring powders and surface cleaners
• Filtration: filter aid that clarifies beer, wine and edible oils by trapping fine particulates
• Expanded perlite also acts as an insulation material and rheology modifier.

Good to know: Standard grades include filter-aid, horticultural and construction grade, with particle size distribution as the primary differentiator. Food-grade and FCC-compliant grades exist for filtration in regulated food and beverage production.

Commercial specifications

• Particle size distribution is the primary differentiator