Alabaster Gypsum 5 Kg

A natural gypsum with excellent features, used to make moulds and, generally, for artistic works.

Categories: Conservation Equipments And Tools, Preservatives and Mortars

Description
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Physical and chemical properties:

Appearance: white powder
Brinell hardness: 60-70 N/mm²
Water/plaster ratio: 55/100
Working time at 23°C: 3 min.
Setting time at 23°C: 6-7 min.
Expansion: 0.15%

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