Plaster - Arcosa Pottery Plaster - 50# bag

Pottery Plaster is Arcosa Specialty Materials standard formula for ceramic slip-casting shops. The product has great wear characteristics and uniform absorption properties. Product is white in color. POTTERY PLASTER TYPICAL PHYSICAL PROPERTIES: Use Consistency – 67-70cc/100g Set Time – 27-37 minutes Maximum Expansion (%) – 0.280% -100 Mesh – 98.5 – 100% passing Compressive Strength – 2,500 psi GENERAL MIXING INSTRUCTIONS: Plaster and water are always measured by weight. Using a plaster/water ratio outside the recommended use consistency guidelines will impact the set-time, strength and density of the finished piece. Sift plaster into water slowly and evenly Let soak for 2 – 4 minutes. This allows the gypsum crystals to wet-out, displacing trapped air Mix for 2 – 5 minutes This online plaster calculator tool will help you easily determine how much plaster you'll need for a variety of different forms as well as different types of plasters. https://plaster.glazy.org