Gypsum Powder

Gypsum Powder (Calcium Sulfate) - Technical Grade

Our technical grade gypsum powder is a fine, high-purity calcium sulfate hemihydrate widely used in industrial and construction applications. It is ideal for mold making, casting, filler use, and as a raw material in cement, plaster, and other building materials.

When to Choose Plaster of Paris Instead
While gypsum is ideal for wall coatings, sculpture bases, and bulk applications, some projects require more precision. Plaster of Paris is a refined form of gypsum that sets quickly and captures fine details, making it perfect for casting, moulding, and model making. If you need a smoother, faster-setting option, check out our Plaster of Paris (Fine Casting Grade).

Benefits & Advantages:

• High Purity: Provides consistent performance in demanding technical applications
• Fast Setting Time: Ideal for molds and casting projects requiring quicker turnaround
• Smooth Finish: Produces sharp details and minimal shrinkage after drying
• Versatile Usage: Suitable for both industrial and hobbyist applications
• Compatible with Additives: Can be mixed with strengthening fibers, pigments, or binders

Common Uses:

• Mold making for ceramics, concrete, soap, and candle projects
• Wall and ceiling plastering in construction work
• Used as a filler or setting agent in building materials and adhesives
• Making decorative architectural elements, such as cornices and trims
• Repairs and patching in drywall and masonry surfaces

Technical Details:

• Chemical Name: Calcium Sulfate Hemihydrate
• Purity: 90-98%
• Appearance: Fine white powder
• Mesh Size: 200-300 mesh (varies by batch)
• Setting Time: Approx. 20-30 minutes (can vary based on temperature/humidity)
• pH (in water): Neutral to mildly acidic

Packaging: Packed in 500g & 1kg

Store in a dry place away from moisture and humidity