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SLA 3D Printing Materials

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SLA 3D Printing Materials

Stereolithography (SLA) produces accurate, smooth-surfaced parts from a range of photopolymer resins. We offer four SLA materials, each suited to different prototyping and functional test requirements.

All four materials are compatible with overnight, 3, 7 and 12-day production speeds. Parts are isotropic, non-porous and available with a full range of finishing options including painting, lacquering, blackout/EMI/RFI coating and assembly operations.

Material comparison at a glance

Use this table to identify the most suitable SLA material for your application. For full property data, refer to the individual material sections below or download full materials datasheets →

Accura ClearVue Accura 25 Accura Xtreme HI-TEMP 300 AMB
Simulates Polycarbonate (optical) Polypropylene ABS High-temp rigid plastic
Colour Water clear / transparent Cream / opaque Grey / opaque Amber / translucent
Tensile Strength 46-53 MPa 38 MPa 38-44 MPa 59 MPa
Heat Deflection Temp 51°C @ 0.455 MPa 58-63°C 62°C @ 0.45 MPa 300°C @ 0.455 MPa
Elongation at Break 3-15% 13-20% 14-22% 2.2%
Shore D Hardness 80 80 N/A 88
USP Class VI Yes No No Yes
Max build size 750 x 750 x 550 mm* 250 x 250 x 250 mm 450 x 450 x 400 mm 380 x 380 x 250 mm
Best for Optics, fluid flow, medical Flexible/snap features, PP-like parts Enclosures, general prototyping High-temp testing, HVAC, tooling

*750 x 750 x 550 mm build volume available on the SLA 750 (Accura ClearVue only).

Material breakdown

Accura 25

About the material

Accura 25 is a cream-coloured SLA resin engineered to simulate polypropylene. It offers good flexibility and elongation, making it particularly well suited to parts with clip features, living hinges or snap fits that need to flex without fracturing during functional testing.

Its polypropylene-like properties make it a reliable choice for first-trial parts and assembly line verification, as well as master models for vacuum casting where the surface finish and dimensional fidelity must closely replicate the intended production material. It can be tapped, have inserts installed, lacquered or painted.

Available on: Projet 6000 (up to 250 x 250 x 250 mm).

Typical applications

First-trial and fit-check parts
PP-like properties give realistic functional feedback

Parts with clip, snap or living hinge features
Good flexibility prevents brittle fracture during testing

Concept and visual models
Cream colour and smooth finish suit presentation use

Masters for silicone tooling (vacuum casting)
High surface quality transfers well to mould

Low volume production parts
Suitable where polypropylene-equivalent properties are needed

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength

38 MPa

ASTM D638

Tensile Modulus

1,590-1,660 MPa

ASTM D638

Elongation at Break

13-20%

ASTM D638

Flexural Strength

55-58 MPa

ASTM D790

Flexural Modulus

1,380-1,650 MPa

ASTM D790

Impact Strength (Izod Notched)

19-24 J/m

ASTM D256

Heat Deflection Temperature @ 0.455 MPa

58-63°C

ASTM D648

Heat Deflection Temperature @ 1.82 MPa

51-55°C

ASTM D648

Shore D Hardness

80

Glass Transition Temperature (Tg)

60°C

DMA E” (120° post cure)

Accura ClearVue

About the material

Accura ClearVue is a water-clear, rigid SLA resin offering the highest optical transparency available in stereolithography. Parts exhibit excellent strength and dimensional stability alongside moisture and humidity resistance, making it the material of choice for applications where visual inspection of internal features or fluid flow is required.

Accura ClearVue is USP Class VI capable, making it suitable for patient-contact applications in medical device development. It can be tapped, have inserts installed, and finished with lacquer, paint or a clarity-enhancing lacquer (D7) to maximise optical performance.

Available on: SLA 750 (up to 750 x 750 x 550 mm) and Projet 6000 (up to 250 x 250 x 250 mm).

Typical applications

Headlamps and automative lenses
High clarity enables realistic lighting assessment

Fluid flow and visualisation models
Internal channels remain visible through part walls

Medical models and patient-contact devices
USP Class VI capable grades available

Transparent assemblies and snap-fit housings
Good elongation supports snap and clip features

Masters for vacuum casting
Excellent surface finish transfers directly to silicone mould

Mechanical and thermal properties

Property Value (Metric) Test Method
Tensile Strength 46-53 MPa ASTM D638
Tensile Modulus 2,270-2,640 MPa ASTM D638
Elongation at Break 3-15% ASTM D638
Flexural Strength 72-84 MPa ASTM D790
Flexural Modulus 1,980-2,310 MPa ASTM D790
Impact Strength (Izod Notched) 40-58 J/m ASTM D256
Heat Deflection Temperature @ 0.455 MPa 51°C ASTM D648
Heat Deflection Temperature @ 1.82 MPa 50°C ASTM D648
Shore D Hardness 80
Glass Transition Temperature (Tg) 62°C DMA E”
Water Absorption 0.3% ASTM D570
CTE @ 25-50°C 122 μm/m-°C ASTM E831
CTE @ 50-100°C 155 μm/m-°C ASTM E831
Liquid Density 1.10 g/cm³ @ 25°C
Solid Density 1.17 g/cm³ @ 25°C

Accura Xtreme

About the material

Accura Xtreme is a grey-coloured SLA resin with tough, ABS-like mechanical properties. It is a general-purpose prototyping material suited to a wide range of enclosures, housings, structural components and assemblies where a production-like appearance and solid, rigid feel are required.

Its neutral grey colour makes it well suited to parts that will be painted or finished, and it is commonly used for end-use appearance models, functional test prototypes and tooling masters. It can be tapped, have inserts installed, lacquered or painted.

Available on: Projet 6000 (up to 250 x 250 x 250 mm) and Neo 450 (up to 450 x 450 x 400 mm).

Typical applications

Enclosures and housings
ABS-equivalent rigidity; suitable for painted finish

Structural and assembly prototypes
Good stiffness and dimensional stability

Appearance models and presentation parts
Neutral grey suits paint and lacquer finishing

Functional test prototypes
Robust enough for handling and assembly trials

Masters for vacuum casting
Compatible with silicone mould making process

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength

38-44 MPa

ASTM D638

Tensile Modulus

1,790-1,980 MPa

ASTM D638

Elongation at Break

14-22%

ASTM D638

Flexural Strength

52-71 MPa

ASTM D790

Flexural Modulus

1,520-2,070 MPa

ASTM D790

Impact Strength (Izod Notched)

35-52 J/m

ASTM D256

Heat Deflection Temperature @ 0.45 MPa

62°C

ASTM D648

Heat Deflection Temperature @ 1.82 MPa

54°C

ASTM D648

HI-TEMP 300 AMB

About the material

HI-TEMP 300 AMB is an ultra-high temperature SLA resin with a heat deflection temperature of over 300°C at low stress (0.455 MPa), making it the most heat-resistant stereolithography material available. It requires no post thermal cure and is translucent amber in colour, enabling elevated temperature fluid and gas flow visualisation alongside its primary use in high-temperature structural and functional testing.

Its chemical compatibility with automotive fluids makes it well suited to underbonnet applications. It can be tapped, have inserts installed, and is USP Class VI capable. Note: HI-TEMP 300 AMB is also available for DLP and Micro 3D Printing.

Available on: Projet 7000 (up to 380 x 380 x 250 mm).

Typical applications

HVAC components and ducting
Sustained exposure to high temperatures without deformation

Motor enclosures and stators
Structural integrity at elevated operating temperatures

Consumer appliance housings (white goods)
Withstands heat from internal components

Fixtures, mounts and jigs
Dimensionally stable under thermal load

High-temp fluid and gas flow visualisation
Translucent amber material allows internal inspection

Low-pressure moulding tooling
Suitable for expanding foams and rubber overmoulding

Overmoulding onto metal components
Compatible with standard overmoulding processes

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

59 MPa

ASTM D638

Tensile Modulus

3,500 MPa

ASTM D638

Elongation at Break

2.2%

ASTM D638

Flexural Strength

117 MPa

ASTM D790

Flexural Modulus

3,400 MPa

ASTM D790

Izod Notched Impact

10 J/m

ASTM D256

Izod Unnotched Impact

70 J/m

ASTM D4812

Heat Deflection Temp @ 0.455 MPa

300°C

ASTM D648

Heat Deflection Temp @ 1.82 MPa

124°C

ASTM D648

Shore D Hardness

88

ASTM D2240

Glass Transition Temperature (Tg)

23°C

ASTM E1640

Water Absorption (24 hr)

0.36%

ASTM D570

Solid Density

1.27 g/cm³

ASTM D792

CTE -20 to 50°C

74 ppm/°C

ASTM E831

CTE 75 to 180°C

55 ppm/°C

ASTM E831

Note: HI-TEMP 300 AMB properties are isotropic across all print orientations.

Finishing and production speeds

All SLA materials are compatible with the full range of our finishing options, including build line removal and bead blasting, lacquering (clear, gloss or clarity-enhancing for Accura ClearVue), primer and paint finishes, soft-feel rubberised coating, blackout/EMI/RFI coating to internal surfaces, and assembly operations including threaded insert fitting.

SLA parts are available with overnight (next working day dispatch), 3, 7 and 12-day production speeds. Note that some finishing options (B4, B7, and Detailed finish level) are not available on the overnight service.

For full finishing option details, see the 3D Printing Finishing page. For production speeds and pricing, use Matrix for an instant online quote.

SLA 3D Printing materials

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When you’re ready to order, upload your CAD file to Matrix for an instant quote and same-day ordering on SLS, SLA and DLP parts. For Micro 3D Printing, PSLA, and Filament 3D Printing, request a quote using the form below.

If you’d like to talk through anything first, call us on 01763 249760 or email us and the team will be happy to help.

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