EPD-IES-0010285:001 (S-P-10285)

Alpha Hemihydrate Base (from natural gypsum)

Alpha Hemihydrate Base (from natural gypsum), or Alpha HH Base (natural), is a high-strength, unformulated hemihydrate plaster (CaSO4.1/2H2O) produced from naturally occurring high-purity gypsum mineral. It is white in colour.

Saint-Gobain Formula’s Alpha Hemihydrate Base (from natural gypsum) is a product group derived from natural gypsum using the alpha calcination process at Saint-Gobain Formula, Newark; they are differentiated by their average particle size.

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Registration numberEPD-IES-0010285:001 (S-P-10285)
PCR2019:14 Construction products (EN 15804+A2) 1.3.4
StatusValid
Publication date2023-10-06
Valid until2028-10-05
EN 15804 compliantYes
Geographical scopeUnited Kingdom
LCA PractitionerCharnett Chau