4 Lbs. Interior Plaster of Paris

10308 DAP Plaster of Paris – 4 lb Bag

DAP 10308 Plaster of Paris is a professional-grade gypsum-based patching and casting compound formulated for interior wall and ceiling repair applications. Engineered for fast-setting performance, it provides a dense, smooth finish ideal for filling, leveling, and surface restoration on plaster, drywall, and masonry substrates. The compound maintains dimensional stability during curing, setting in approximately 20 to 30 minutes without shrinkage.

Technical Specifications

• Manufacturer: DAP Products Inc.
• Model Number: 10308
• Product Type: Interior Plaster of Paris
• Weight: 4 pounds (1.81 kg)
• Chemical Base: Calcium Sulfate Hemihydrate (Gypsum)
• Application: Interior wall and ceiling patching, surface repair, and small-area restoration
• Setting Time: 20–30 minutes (ambient temperature dependent)
• Shrinkage: None – non-shrinking formulation
• Finish: Smooth, dense surface suitable for sanding and painting
• Mix Ratio: Approximately 2 parts plaster to 1 part water by volume
• Workable Time: 6–10 minutes after mixing
• Coverage: Varies by depth and substrate (approx. 18–20 sq. ft. at 1/8" thickness per 4 lb unit)
• Service Temperature Range: 40°F to 120°F (4°C to 49°C)
• Color: White
• Surface Type: Plaster, drywall, masonry, or wood (interior use only)
• Compliance: ASTM C59 and ASTM C472 for gypsum plaster standards

Professional Notes

DAP 10308 Plaster of Paris is intended for use by professional contractors, painters, and maintenance personnel performing interior surface repair and finishing. The compound sets rapidly, allowing same-day finishing and recoating. For optimal performance, surfaces should be clean, dry, and free of dust or oil prior to application. Mixing should be performed in small batches to match working time. Not recommended for structural repairs or continuous moisture exposure environments.

Summary

DAP 10308 Plaster of Paris is a 4 lb interior-grade gypsum repair compound that sets in 20–30 minutes to a smooth, hard finish. Designed for professional wall and ceiling repair applications, it delivers non-shrinking, fast-setting performance suitable for surface restoration and finishing on plaster, drywall, and masonry substrates.