Pottery Plaster #1

Description  Pottery Plaster is only available in 50lb bags SHIPPING ONLY VIA FREIGHT When selecting your quantity, be sure to only use increments of 50lbs. Mixing Instructions This plaster is ideal for making slip-casting molds and other plaster castings where a high degree of water absorption is required. Pottery Plaster #1 requires 70 pounds of water to set up 100 pounds of dry plaster. This is referred to as a "consistency of 70." Always store plaster in a warm, dry, clean place. Do not use plaster that is lumpy--as a result of storage, it has absorbed moisture from the air and will have lower strength. Always use room temperature, potable water. Sift or spread plaster evenly into the water (never add water to plaster!), allowing lumps to form. Soak the unmixed plaster for two to four minutes and mix until slurry attains the consistency of thick cream. The setting time is affected by water temperature, speed, and duration of mixing. The warmer the water, the faster the set. The lo