Reynolds Advanced Materials carries a wide variety of USG Gypsum products. This selection of gypsum plasters is suitable for a number of mold making and casting applications ranging from giftware and sculpture casting, to industrial and production applications.
No. 1 Casting Plaster
The industry standard for figurines, plaques, and lamp bases. Special additives maintain smooth-working qualities and upon drying, result in a hard working surface with reduced paint absorption and degree of chip-resistance.
No. 1 Pottery Plaster
USG No. 1 Pottery Plaster is noted for outstanding performance and long life. The standard of the industry, it is the best material available for sanitary-ware and dinnerware slip casting.
HYDRO-STONE® is recommended for producing high-quality novelty and statuary castings requiring extremely hard surfaces. This product is self-leveling when poured and not suitable for hollow cast applications.
Snowwhite Filler Gypsum
Its bright white color, softness, and good acid resistance provides a superior medium as a functional filler in polymers, caulks, and adhesives. Its whiteness, softness, acid resistance and binder carrying ability makes it a good candidate for use in adhesives and caulks.
Hydrocal® FGR-95 Gypsum
Hydrocal® FGR-95 Gypsum Cement is specially formulated to set fast, develop high strength, and permit fabrication of strong, resilient glass-reinforced products. The superior fire retardant properties allow for safe, code-compliant installation in all types of public and private structures.
Hydrocal® White Gypsum
A good general use product recommended for solid and hollow casting of lamp bases and figurines. Designed for thin sections which require high green strength to minimize breakage.
UltraCal® 30 Gypsum
A super-strength gypsum cement that has the lowest expansion of any rapid-setting gypsum cement available. Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins.
No. 1 Molding Gypsum
Often referred to as “plaster of Paris” or soft plaster. Used for waste molds or temporary patterns where surface hardness and strength are not important.
|Product Name ||Use Consistency (parts of water by weight per 100 parts plaster) ||Set Time ||Density Wet |
|Density Dry |
|1 Hour Compressive Strength ||Dry Compressive Strength ||Maximum Setting Expansion |
| Hydrocal® White || 45 || 25-35 min. || 110.6 || 90 || 1,000 psi || 5,000 psi || 0.39% |
| Hydrocal® FGR-95 || 30-36 cc || N/A || N/A || N/A || N/A || N/A || N/A |
| No. 1 Pottery Plaster || 70 || 14-24 min. || 99 || 69 || 1,000 psi || 2,400 psi || 0.21% |
| No. 1 Casting Plaster || 65 || 27-37 min. || 100 || 72.5 || 1,200 psi || 2,400 psi || 0.21% |
| Hydro-Stone® || 32 || 17-20 min. || 119.4 || 108.7 || 4,000 psi || 10,000 psi || 0.24% |
| UltraCal® 30 || 38 || 17-20 min. || 115 || 99 || 4,000 psi || 6,000 psi || 0.24% |
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