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DLP 3D Printing Materials

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DLP 3D Printing Materials

Digital Light Projection (DLP) uses a range production-grade resins, covering flexible, rigid, flame-retardant, high-temperature and rubber-like requirements. All materials are isotropic, meaning parts exhibit consistent mechanical properties regardless of print orientation.

Stocked materials are available with overnight, 3, 7 and 12-day production speeds. Non-stocked DLP materials can be ordered on a 7 to 12-day lead time – contact the team to discuss.

Material comparison at a glance

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

FLEX-BLK 20

HI-TEMP 150C FR Black

HI-TEMP 300 AMB

PRO-BLK 10

RUBBER-65A BLK

Tough 60C White

Tough FR V0 Black

Colour

Black

Black

Amber / translucent

Black

Black

White

Black

Tensile Strength

36 MPa

58 MPa

59 MPa

63 MPa

5 MPa

35 MPa

38 MPa

Elongation at Break

76%

4%

2.2%

12%

126%

23%

44.6%

HDT @ 0.455 MPa

41°C

>150°C

300°C

70°C

–

65°C

66°C

Shore Hardness

68D

85D

88D

79D

65A

79D

78D

Flame rating

HB

UL94 V0

N/A

HB

N/A

HB

UL94 V0

Biocompatible capable

No

No

Yes (USP VI)

Yes

No

Yes

No

Best for

Flexible/PP-like parts

FR + high temp

Ultra-high temp

Rigid functional parts

Rubber/elastomeric

Medical, white, tough

FR + tough/flexible

Material breakdown

FLEX-BLK 20

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

FLEX-BLK 20 is a flexible, high impact-resistant black resin with the look and feel of moulded polypropylene. It is engineered for long-term environmental stability, retaining mechanical properties under UV and humidity exposure, and offers outstanding flexibility and accuracy for a wide range of functional applications.

With an unnotched Izod impact that does not break under test, FLEX-BLK 20 is one of the toughest materials in the DLP range and is well suited to assemblies, enclosures and parts requiring repeated flexing or impact resistance.

Typical applications

Functional assemblies and prototypes
Outstanding flexibility and accuracy

Automotive styling and under-hood parts
Good automotive fluid compatibility

Consumer goods and electronic components
PP-like look and feel; durable black finish

Containers, enclosures and covers
High impact resistance; does not break under unnotched Izod

Master patterns for RTV/silicone moulding
Excellent surface quality transfers to silicone mould

Concept and marketing models
Injection moulded appearance

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

36 MPa

ASTM D638

Tensile Modulus

1,150 MPa

ASTM D638

Elongation at Break

76%

ASTM D638

Flexural Strength

22 MPa

ASTM D790

Flexural Modulus

680 MPa

ASTM D790

Notched Izod Impact

91 J/m

ASTM D256

Unnotched Izod Impact

Does not break

ASTM D4812

Shore D Hardness

68

ASTM D2240

Heat Deflection Temp @ 0.455 MPa

41°C

ASTM D648

Glass Transition Temperature (Tg)

11°C

ASTM E1640

CTE below Tg

69 ppm/°C

ASTM E831

Solid Density

1.18 g/cm³

ASTM D792

Water Absorption (24 hr)

0.64%

ASTM D570

UL Flammability

HB

UL94

Datasheets

Download full materials datasheets →

You can also download process datasheets →

HI-TEMP 150C FR Black

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

HI-TEMP 150C FR Black is a rigid, flame-retardant black resin with a heat deflection temperature of over 150°C at low stress (0.455 MPa). It carries a UL94 V0 rating at 2 mm and 3 mm thickness, passes FAR 25.853 and 23.853 vertical burn testing, and meets UL 746C GWIT and GWFI requirements, making it the material of choice for applications where both fire resistance and thermal performance are required.

The material is halogen-free, requires no secondary thermal cure, and provides long-term indoor and outdoor environmental stability. It is capable of plating and painting.

Typical applications

Printed circuit board covers
UL94 V0; good electrical properties

Fluid flow and visualisation models
Rigid; >150°C HDT; flame-retardant

Rigid covers, hangers and brackets
High stiffness; 2,900 MPa flexural modulus

In-cabin parts (FAR 25/23.853)
Passes 12-second vertical burn at 3mm

Flame-retardant parts for trains and buses
Halogen-free; UL 746C GWIT/GWFI rated

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

58 MPa

ASTM D638

Tensile Modulus

2,600 MPa

ASTM D638

Elongation at Break

4%

ASTM D638

Flexural Strength

100 MPa

ASTM D790

Flexural Modulus

2,900 MPa

ASTM D790

Notched Izod Impact

10 J/m

ASTM D256

Unnotched Izod Impact

50 J/m

ASTM D4812

Shore D Hardness

85

ASTM D2240

Heat Deflection Temp @ 0.455 MPa

>150°C

ASTM D648

Heat Deflection Temp @ 1.82 MPa

89°C

ASTM D648

CTE below Tg

98 ppm/°C

ASTM E831

Solid Density

1.29 g/cm³

ASTM D792

Water Absorption (24 hr)

0.26%

ASTM D570

UL Flammability

V0 @ 2mm, 3mm

UL94

GWIT

750°C @ 2mm, 3mm

UL 746C

Datasheets

Download full materials datasheets →

You can also download process datasheets →

HI-TEMP 300 AMB

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

HI-TEMP 300 AMB is an ultra-high temperature resin available for DLP, SLA and Micro 3D Printing, with a heat deflection temperature of over 300°C at low stress (0.455 MPa) and no post thermal cure required. It is the most heat-resistant stereolithography material available, and is well suited to functional testing of components in applications including HVAC, consumer appliances, motor enclosures, fixtures, mounts and tooling.

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.

Datasheets

Download full materials datasheets →

You can also download process datasheets →

PRO-BLK 10

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

PRO-BLK 10 is a production-grade black resin with thermoplastic-like mechanical properties, long-term environmental stability and no secondary thermal cure required. It is available as a DLP material, in addition to PSLA.

The material features long-term environmental stability, retaining mechanical properties under UV and humidity exposure. It requires no secondary thermal cure, making it well suited to fast-turnaround production workflows. PRO-BLK 10 is biocompatible capable per ISO 10993-5 and ISO 10993-10, and offers a UL94 HB flammability rating.

Typical applications

Motor housings and connectors
Thermoplastic-like rigidity; smooth surface finish

Snap-fits and functional assemblies
12% elongation at break supports deflection under load

Automotive interior and under-hood components
Good automotive fluid compatibility

Bridge manufacturing before hard tooling
Tool-less same-day production capability

Medical device components
Biocompatible capable per ISO 10993-5 and ISO 10993-10

General-use black plastic parts
Production-grade quality; simplified post-processing

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

63 MPa

ASTM D412

Tensile Modulus

2,320 MPa

ASTM D412

Elongation at Break

12%

ASTM D412

Elongation at Yield

4.7%

ASTM D412

Flexural Strength

92 MPa

ASTM D790

Flexural Modulus

2,290 MPa

ASTM D790

Izod Notched Impact

24 J/m

ASTM D256

Izod Unnotched Impact

614 J/m

ASTM D4812

Shore D Hardness

79

ASTM D2240

Heat Deflection Temp @ 0.455 MPa

70°C

ASTM D648

Heat Deflection Temp @ 1.82 MPa

56°C

ASTM D648

Glass Transition Temperature (Tg)

62°C

ASTM E1640

CTE below Tg

71 ppm/°C

ASTM E831

CTE above Tg

188 ppm/°C

ASTM E831

Solid Density

1.16 g/cm³

ASTM D792

Water Absorption (24 hr)

1.16%

ASTM D570

UL Flammability

HB

UL94

Datasheets

Download full materials datasheets →

You can also download process datasheets →

RUBBER-65A BLK

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

RUBBER-65A BLK is a mid-tear strength, production-grade rubber material with Shore 65A hardness and high elongation at break. It is suitable for seals, gaskets, grips and flexible components requiring both durability and elastomeric properties.

Typical applications

Seals and gaskets
Shore 65A hardness; production-grade rubber properties

Grips and ergonomic overmoulding
Elastomeric feel with good elongation at break

Flexible connectors and bellows
Mid-tear strength; durable under repeated flex

Functional rubber prototypes
Direct substitute for moulded elastomeric parts

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Shore A Hardness

65

ASTM D2240

Tensile Strength

5 MPa

ASTM D412 Die C

Elongation at Break

126%

ASTM D412 Die C

Tear Strength

8.5 kN/m

ASTM D624 Type T

Solid Density

1.12 g/cm³

ASTM D792

Datasheets

Download full materials datasheets →

You can also download process datasheets →

Tough 60C White

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

Tough 60C White is a versatile, biocompatible-capable white resin combining good impact strength, elongation and tensile strength for long-term use parts. It offers a clean, long-lasting bright white colour with an injection moulded-like surface quality and long-term indoor and outdoor environmental stability, tested to eight years (indoor) and 1.5 years (outdoor) per ASTM methods.

The material is autoclavable and biocompatible capable per ISO 10993-5 and ISO 10993-10, making it suitable for clinical trials, medical devices and load-bearing parts requiring dimensional stability over time. No secondary thermal cure is required.

Typical applications

Clinical trials and medical devices
Biocompatible capable per ISO 10993-5 and -10; autoclavable

Handles, cranks, knobs and levers
Good impact strength and tensile stiffness under load

Brackets, snap-fits and custom fasteners
7.1% elongation at yield supports snap features

Consumer products and wearable devices
Bright white colour; fine detail and accurate surface finish

Long-term functional prototypes
8-year indoor environmental stability

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

35 MPa

ASTM D638

Tensile Modulus

1,500 MPa

ASTM D638

Elongation at Break

23%

ASTM D638

Elongation at Yield

7.1%

ASTM D638

Flexural Strength

52 MPa

ASTM D790

Flexural Modulus

1,500 MPa

ASTM D790

Izod Notched Impact

34 J/m

ASTM D256

Izod Unnotched Impact

90 J/m

ASTM D4812

Shore D Hardness

79

ASTM D2240

Heat Deflection Temp @ 0.455 MPa

65°C

ASTM D648

Heat Deflection Temp @ 1.82 MPa

48°C

ASTM D648

Glass Transition Temperature (Tg)

50°C

ASTM E1640

CTE below Tg

95 ppm/°C

ASTM E831

Solid Density

1.23 g/cm³

ASTM D792

Water Absorption (24 hr)

0.61%

ASTM D570

UL Flammability

HB

UL94

Datasheets

Download full materials datasheets →

You can also download process datasheets →

Tough FR V0 Black

  • About the material
  • Typical applications
  • Mechanical and thermal properties
  • Datasheets

About the material

Tough FR V0 Black is a tough, flame-retardant black resin that passes UL94 V0 above 3mm wall thickness and FAR 25.853(a) above 2mm. It distinguishes itself from other flame-retardant DLP materials through its elongation at break of up to 44.6%, making it uniquely suited to applications where fire resistance must coexist with toughness and flexibility.

The material offers outstanding compatibility with fuel turbine oil, hydraulic fluid and IPA, and is capable of plating and painting. No secondary thermal cure is required. It shares base chemistry with the SLA version of Tough FR V0 Black, enabling production efficiencies where both processes are in use.

Typical applications

Aircraft electrical connectors, knobs and grommets
FAR 25.853 capable; tough and flexible

Printed circuit board covers
UL94 V0 @ 3mm; good electrical properties

Electrical and under-hood housings
Flame-retardant; good automotive fluid compatibility

Flame-retardant parts for trains and buses
UL94 V0; self-extinguishing

End-use high-volume small plastic parts
Production-grade; accurate and repeatable

Mechanical and thermal properties

Property

Value (Metric)

Test Method

Tensile Strength (Ultimate)

38 MPa

ASTM D638

Tensile Modulus

1,400 MPa

ASTM D638

Elongation at Break

44.6%

ASTM D638

Flexural Strength

48 MPa

ASTM D790

Flexural Modulus

1,300 MPa

ASTM D790

Notched Izod Impact

35 J/m

ASTM D256

Unnotched Izod Impact

770 J/m

ASTM D4812

Shore D Hardness

78

ASTM D2240

Heat Deflection Temp @ 0.455 MPa

66°C

ASTM D648

Heat Deflection Temp @ 1.82 MPa

51°C

ASTM D648

Glass Transition Temperature (Tg)

6°C

ASTM E1640

CTE below Tg

108 ppm/°C

ASTM E831

Solid Density

1.31 g/cm³

ASTM D792

Water Absorption (24 hr)

1.03%

ASTM D570

UL Flammability

V0 @ 3mm

UL94

Datasheets

Download full materials datasheets →

You can also download process datasheets →

Finishing and production speeds

All stocked DLP materials are available with overnight (next working day dispatch), 3, 7 and 12-day production speeds. Compatible finishing options include support witness mark removal, bead blasting, lacquering, primer and paint finishes, blackout/EMI/RFI coating to internal surfaces, and assembly operations including threaded insert fitting.

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

DLP 3D Printing materials

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            Prototype Projects Ltd
            Units 1&2, Greenfield
            Royston,
            Herts SG8 5HN

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              Prototype Projects is a family-run business specialising in 3D Printing, CNC Machining, Model Making and Vacuum Casting. Established in 1980, the company is located in Royston, Hertfordshire.

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              Units 1 &2, Greenfield
              Royston
              Herts SG8 5HN

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