An environmentally sound alternative to resin-based products. Specifically for use with the RAM automatic clay-forming process.ĭRYSTONE - Fast setting high strength product that needs no drying. Characterized by low absorption, high strength, ability to purge easily, and resistance to abrasion and wear. This is a relatively soft plaster which may be used for carving.ĬERAMI-CAL - A low-consistency form of HYDROCAL Gypsum cement compounded to produce a dense, smoot- wearing die material for pressing clayware. Used for making plaster bats, wedging boards, and working molds. The standard of the industry - USG plaster is the best material available for sanitary ware and dinnerware casting. #1 POTTERY PLASTER - Highly uniform, noted for outstanding performance and long life. #1 CASTING PLASTER - Similar to white art plaster, except mixed at a lower use consistency to increase strength, chip-resistant, and to further minimize paint absorption.Īn ornamental plaster used for creating decorative trim or running cornices.ĭesigned for use where expansion control, hardness and strength are not primary considerations. US Gypsum Casting Materials and Other Plasters: Hand mixing is only acceptable for batches up to 5 pounds.

Do not drop handfuls of plaster directly into the water. Plaster should be sifted slowly and evenly into water. Batch size should allow for the pouring to be completed within 5 minutes after the slurry has been mixed. Of the plaster, which decreases strength. If strength is the most important factor, longer mixing times are suggested, taking care not to over mix into the setting action Weighing the slurry in a container of known volume. Since water-to-plaster ratios effect absorption, strength, and mold performance, they should be continually checked by Plaster and water should be contained at room temperature. A controlled temperature setting will provide the best results. The purest water available should be used almost all drinkable water is suitable. Successful mixing and use of industrial plasters requires following specific standards and procedures: This equals 4.17 gallons water per 50 pounds dry pottery plaster. USG Pottery Plaster Mix For Wedging Tables:įor wedging boards or tables mix 70 parts of water to 100 parts plaster.

HELPFUL HINTS FOR MIXING PROCEDURES FOR DRY PLASTERS USG Gypsum Plaster Selection Guide, Hints Tips, Below these products We also supply Bentonite, fireclays, slip and many other materials used by artists and craftsmen to create castings. Please call us toll-free at 1-88 to order large quantities of the items on this page. If you don't see your submission right away, don't worry, it is probably just in queue waiting for a moderator review.This page contains items related to plasters and casting materials by US Gypsum.īulk discounts are available for these US Gypsum products. r/Clayįor non-ceramic clays like polymer clay & air-dry clay.Try /r/clay for other types of clay like polymer & air-dry clays. Trying to appraise your piece of pottery? Please post at a more appropriate subreddit such as /r/whatsthisworth. If you are wanting to sell your wares, try r/ArtisanGifts instead. We have a pinned 'Self Promotion' post where you can post your info if desired. Not promoting businesses, blogs, pages, or social media. This sub-reddit is for talking about, and sharing pottery.

Anything and everything related to throwing, hand-building, sculpting, glazing, firing, and appreciating ceramic art.

Pottery plaster molds