Accura Amethyst (Plastic / Photopolymer)

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3D Systems


Material optimised for the rapid and automated production of patterns and master moulds for jewellery manufacturing. Outstanding accuracy; exceptional detail; low ash formulation. Patterns for use with low and high vulcanazing rubber moulding; high resolution concept models. Patterns are compatible with high temperature rubber moulding operations; material can be burned out for direct casting.

State of starting material


Properties, applications and appearance

Field of application

Rapid Tooling

As master pattern for casting applications

pattern for vulcanizing rubber molding

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Manufacturing process

Parts are built from a liquid photopolymer in a vat which is selectively cured by light-activated polymerization. Synonyms: SLA

Physical, mechanical and thermal properties

Physical Properties

specific density: 1.23 g/cm3

Mechanical Properties

ultimate tensile strenght: 22 - 38 MPa
tensile modulus (Young's / E- ): 3,514 - 3,996 MPa
flexural modulus: 3,652 - 3,721 MPa
flexural strenght: 87 - 125 MPa

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Data source: 3D Systems

ATTENTION: The presented values are provided by the material manufacturers and are only indicative. Realized material properties may differ from these value for several reasons. Additively does not guarantee the correctness of this information in any way.