Rock Dent Hard Plaster

The Rock Dent Hard Plaster is a premium, high-strength dental laboratory plaster engineered for superior cast durability, precision detailing and minimal distortion. With a strong compressive strength (MPa ≈ 900) and a low coefficient of expansion (≈ 0.1 %) the material offers exceptional stability and performance for denture models, removable frameworks, orthodontic study casts and pressing applications.

Key Features & Benefits:

• High hardness and strength: rated at ~900 MPa, suitable for heavy-duty model work.

• Low expansion (≈ 0.1 %) ensures minimal distortion between setting and cast retrieval.

• Water/powder ratio around 29% for optimal mix viscosity and flow.

• Uniform setting and smooth surface finish that allows easy trimming and polishing of models. (From typical hard plaster characteristics)

• Ideal for dental lab applications: denture processing, metal framework investing, study models, articulator mounts.

Usage Instructions / Tips:

• Mix with recommended amount of water (approx. 29% of powder weight) for best flow and minimal porosity.

• Use a vacuum mixer if available to reduce air entrapment, then pour within working time.

• Allow full set and appropriate cure time before model trimming to maximize strength and finish.

• Store in a dry environment; avoid moisture ingress which may affect set properties.

• Suitable for use in laboratories requiring high precision and repeatable cast accuracy.