Plaster, Hydrostone

Seattle Pottery Supply Verified independent store

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Hydrostone is a high-strength, white plaster used in ceramics for making molds, casting forms, and modeling. It sets quickly when mixed with water and produces a hard, durable surf ace ideal for slip casting or press molds. To use, follow our Step-By-Step Instructions for Mixing Plaster Plaster can irritate skin, eyes, and lungs. Wear gloves, a dust mask or respirator, and work in a well-ventilated area. Avoid inhaling the dust when mixing. Show more