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Manufacturer's Product Description

When Performance Rests on the Quality of Your Operation
Uniform texture and densities ensure that our tooling plasters adhere to the exacting specifications demanded by leading manufacturers. Industrial tooling plaster products attain and hold close tolerances, with expansion controlled to 0.0003 in./in. Stability is also critical. Our products will not warp or shrink under normal temperature and humidity ranges. Their excellent adaptability makes tooling plasters ideal for the most intricate and complex designs. In addition, our product provides a surprising cost effectiveness. Gypsum cements require just one-third to one-half the time of standard tooling techniques.
Produced from some of the world's purest gypsum, Georgia-Pacific industrial gypsum is manufactured from exceptional raw materials, up to 99%+ pure, in carefully controlled conditions. Chances are one of our industrial plaster products features the exact formulation that meets your requirements. If not, we will gladly customize a special formulation based on your specifications.
Industrial Tooling Plasters Description Use Consistency (cc/100gms) Vicat Set Time (minutes) % Set Expansion Dry Density (lbs./ft3) Expected Compressive Strength (PSI)
Denscal TL Plaster Print Spec This medium-strength gypsum cement is specially formulated to provide a long period of plasticity. It is especially suited for loft template, splash cast patterns or models that require an extended working time. Denscal TL gypsum plaster provides the benefit of controlled setting expansion, and is particularly useful for tooling that involves close tolerances. 45 15 - 20 0.05 - 0.065 90 4000
Densite K-12 Low Expansion Plaster Print Spec With a density well suited for industrial tooling, Densite K-12 gypsum cement features a short plasticity period, and offers low-expansion and high-strength characteristics. 36 - 37 20 - 30 0.25 - 0.040 101 7500 - 8000
Densite K-13 Plaster Print Spec When your requirements call for low-expansion, high-strength gypsum cement, turn to Densite K-13 gypsum cement with complete confidence. It is ideal for splash casting and screeding applications. Expect a medium plasticity period from this capable product. 36 - 38 15 - 20 0.18 - 0.23 99 - 102 6000 - 8000
Densite K-25 Plaster Print Spec Our premier tooling material is meticulously formulated to be non-corrosive, making it excellent for use in conjunction with aluminum templates. Densite K-25 gypsum cement gives you the benefit of high-strength, low-expansion properties combined with a long plasticity period. 40 20 - 30 0.04 - 0.05 96 6000
Densite K-33 Plaster Print Spec Regardless of application, material requirement or performance specifications, this product is suitable for all types of plaster tooling. 36 15 - 20 0.025 - 0.04 102 8000
Denscal WH Plaster Print Spec For tooling applications where setting expansion is not a critical factor, Denscal WH gypsum plaster is an ideal choice. Its high strength makes this general purpose gypsum cement a versatile performer. It is frequently used as the basic ingredient in dental stone, investment casting plasters and self-leveling floor underlayment compounds. 34 - 35 25 - 30 0.3 - 0.35 102 - 104 7000 - 8000
Denscal ST Plaster Print Spec Our strongest and hardest Denscal gypsum cement, Denscal ST plaster is a high-performance, viscous pouring material. It is ideal for applications requiring a high degree of surface hardness. Customers find that it is excellent for solid patterns, models or molds. 30 15 - 25 0.2 110.8 11,000
Industrial Molding Print Spec Every shop needs to have a good utility plaster on hand. Industrial Molding Plaster fills the bill, with all the reliability you would expect. Recommended for applications without stringent requirements for surface hardness, strength and expansion control. It is excellent for waste molds and temporary tooling. 70 - 75 27 - 37 0.15 65 - 69 1500 - 2000
Three main techniques are commonly employed when gypsum cements are used in industrial tooling: pouring, screeding and splash casting. The adaptability of Densite and Denscal gypsum cements make them well suited to these methods, which are explained below:
Straight-Run Molding Technique
Produces a pattern or model with parallel sides
Uses a flat bench with at least one straight edge, a screeding tool and a metal template cut to the desired configuration
Screeding tool is pushed through the gypsum cement mixture, forming it to the contour of the metal template
Circular Molding
Modification of the straight-run molding technique
Employs a template rotating around a center pin
Produces a symmetrical pattern such as a disc, wheel or housing
Box-Turning Molding
Commonly used for making cylindrical and cone-shaped models and patterns
Utilizes a wooden box assembly with a metal template secured to an open top
Non-pourable mix of gypsum cement is anchored to a central turning rod, which is rotated to shape the gypsum cement to the contour of the template
Loft-Template Molding
Ideally suited to production of non-symmetrical shapes
Commonly used to construct master models, original patterns and prototypes
Contour lines are copied onto rigid steel of aluminum sheets to make templates, which are mounted on a rigid base
Gypsum cement mixture screeded to form a smooth, close-tolerance surface
Splash Casting
Used in applications requiring large irregular shapes that are not readily adaptable to pouring
Layers of gypsum cement mix and half-inch fiber bats placed over the surface to produce a one- to two-inch uniform cast of a pattern or model

Activity with Industrial Tooling Plaster