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Four base materials
The catalogue is built on what a product is made of. Perlite is produced by the group from its own reserves; diatomite, activated carbon and cellulose are supplied from established producers.
Processing Tiers — Perlite
Graded Unexpanded, Classic Expanded, Classified Expanded and Advanced Expanded describe what happens to perlite inside the group's own plants.
Finding a grade
Every product page carries a technical data sheet and a safety data sheet. Selection is made on measured values permeability for filtration, bulk density for construction, particle size for fillers and growing media.