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No. 1 Moulding Plaster

Ornamental Plaster

Often referred to as plaster of Paris or soft plaster, USG® No. 1 moulding plaster is used to create waste molds or temporary patterns where surface hardness and strength are not crucial. USG® No. 1 moulding plaster offers a controlled set that provides uniform workability, has a fine grain making it ideal for producing sharp detail when used neat for cast work. It complies with ASTM C28, sets in 27-37 minutes after mixing.


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alertThis material has a by-weight mix ratio. An accurate gram scale is recommended.