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High-quality calcined gypsum (Plaster of Paris) for casting, molding and industrial applications
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Export Ready
Pakistan Origin
High-quality calcined gypsum (Plaster of Paris) for casting, molding and industrial applications
Plaster of Paris (Calcined Gypsum)
Plaster of Paris (calcium sulfate hemihydrate) powder. Regular and dental grades. Price on inquiry, shipped from Karachi.
High CaSO₄·0.5H₂O Purity
Regular & Dental Grades
Fast Setting Time
Certificate of Analysis
| Chemical Name | Calcium Sulfate Hemihydrate |
|---|---|
| Formula | CaSO₄·0.5H₂O |
| Available Grades | Regular, Dental |
| Purity (typical) | Regular: 95-98%, Dental: 98%+ |
| Mesh Sizes | 100, 150, 200, 325 |
| Color | White |
| Whiteness | > 90 |
| Initial Setting | Time 8-15 minutes |
| Final Setting Time | 20-45 minutes |
Product Details
Plaster of Paris (Calcined Gypsum) from Pakistan
Plaster of Paris is produced by partially dehydrating pure gypsum rock in rotary kilns at controlled temperatures around 150 °C. This converts the gypsum (calcium sulfate dihydrate, CaSO₄·2H₂O) into calcium sulfate hemihydrate (CaSO₄·0.5H₂O), which readily rehydrates and sets when mixed with water. Pakistan’s gypsum calcining industry produces high-quality Plaster of Paris for domestic and export markets.
Available Grades and Mesh Sizes
Regular Grade: 100, 150, 200 mesh (95-98% purity)
Dental Grade: 200, 325 mesh (98%+ purity)
Custom grinds and formulations on request
Applications
Pottery and ceramic molds
Building plasters
Industrial plaster castings
Dental and medical casts
Sculpture and artwork
Hobby and craft projects
Quality Assurance
Each lot includes a Certificate of Analysis confirming purity and composition. Pre-shipment samples are provided for approval. Third-party inspection and testing can be arranged on request.
Why Source From Pakistan?
Pakistan is among the world’s top gypsum producers, with a dedicated supply chain from mine to finished plasters. Plaster of Paris exporters like DaaTrade offer end-to-end procurement solutions covering product specs, manufacturing, testing, packaging, documentation and logistics. Buyers get consistent high-quality product made to their required grade and mesh, with full traceability and quality assurance. Well-established export infrastructure and competitive pricing make Pakistan an efficient and reliable source for regular and dental-grade Plaster of Paris.
Specifications
| Chemical Name | Calcium Sulfate Hemihydrate |
|---|---|
| Formula | CaSO₄·0.5H₂O |
| Available Grades | Regular, Dental |
| Purity (typical) | Regular: 95-98%, Dental: 98%+ |
| Mesh Sizes | 100, 150, 200, 325 |
| Color | White |
| Whiteness | > 90 |
| Initial Setting | Time 8-15 minutes |
| Final Setting Time | 20-45 minutes |
Packaging & Shipping
Packaging Options
25 kg multi-walled paper bags, palletized and shrink-wrapped
1 MT jumbo bags
Loose bulk in 20' or 40' containers
Shipping
Loading ports: Karachi Port or Port Qasim
Containerized shipment
Incoterms: FOB, CFR, CIF
Documents: Commercial Invoice, Packing List, Certificate of Origin, Certificate of Analysis, Bill of Lading
Frequently Asked Questions
A: Dental grade is made from the highest purity gypsum and milled to a finer particle size (typically 98%+ purity at 200-325 mesh). It is formulated to set harder with minimal expansion for dental impressions and casts. Regular grade is suited for general molding, casting and industrial plaster applications.
A: Store in a cool, dry place away from moisture, ideally below 30°C and 50% relative humidity. Once opened, reseal packaging tightly. When stored properly in original packaging, the shelf life is typically 6-12 months. Avoid storing in damp conditions or near heat sources, as this can cause lumping and reduce setting performance.
A: Our regular grade Plaster of Paris has an initial setting time of 8-15 minutes and a final setting time of 20-45 minutes at a standard consistency of 60-70 parts water to 100 parts plaster by weight. Setting time can be adjusted by varying the water ratio or adding small amounts of retarders like borax or accelerators like potassium sulfate. Exact ratios depend on the grade and application.
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