MOULDING PLASTER No. 1
Often referred to as Plaster of Paris or soft plaster, No. 1 Moulding Plaster is used to create waste molds or temporary patterns where surface hardness and strength are not crucial.
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.
• Complies with ASTM C28
• Sets in 27-37 minutes after mixing.
• Requires 70 parts water by weight per 100 parts plaster