PolyJet 3D Printing

PolyJet is an industrial 3D printing process that builds multi-material prototypes with flexible features and complex parts with intricate geometries in as fast as 1 day. A range of hardnesses (durometers) are available, which work well for components with elastomeric features like gaskets, seals, and housings.

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How Does PolyJet 3D Printing Work?

The PolyJet process begins by spraying small droplets of liquid photopolymers in layers that are instantly UV cured. Voxels (three-dimensional pixels) are strategically placed during the build, which allow for the combination of both flexible and rigid photopolymers know as digital materials. Each voxel has a vertical thickness equal to the layer thickness of 30 microns. The fine layers of digital materials accumulate on the build platform to create accurate 3D-printed parts.

Each PolyJet part is completely coated in support material during the build, which ultimately is removed by hand using a pressurized water stream and a chemical solution bath. No post-curing is required after the manufacturing process.

Shipped in as fast as 1 day
Instant quotes for PolyJet parts

Common Applications

simulating elastomers and flexible parts
prototyping designs for overmolding and liquid silicone rubber molding
combining two-tone colors and multiple materials into a single part
manufacturing complex part geometries

Why Use PolyJet 3D Printing?

See how 3D printing with Polyjet is ideal for elastomeric prototypes and testing the form and fit of designs that will eventually be overmolded.

PolyJet Design Guidelines and Capabilities

Maximum Part Size
Layer Thickness
Minimum Feature Size
Tolerances

	US	Metric
Normal Resolution	19.3 in. x 15.4 in. x 7.9 in.	490mm x 390mm x 200mm

	US	Metric
Normal Resolution	0.00118 in.	30 microns

	US	Metric
Normal Resolution	0.012 in.	0.3mm

Minimum free-standing wall or feature is 0.030 in. (0.76mm). Holes, channels, and slots less than 0.030 in (0.76mm) in diameter/width will not form; maximum length-to-width aspect ratio is 4:1.

PolyJet Tolerances

For well-designed parts, tolerances of ±0.005 (0.1mm) for the first inch plus ±0.001 in./in. (0.001mm/mm) for each additional inch can typically be achieved. Note that tolerances may change depending on part geometry.

Maximum Part Size

Layer Thickness

Minimum Feature Size

Tolerances

PolyJet Material Options

PolyJet provides the ability to choose a desired hardness or combine material properties into a single build, which makes it ideal for prototyping overmolding parts. Shore A hardnesses of 30A, 40A, 50A, 60A, 70A, 85A, 95A, and rigid are available in these colors:

Digital Clear/Translucent
Digital Black
Digital White

Material	Tensile Tear Strength	Tensile Strength	Elongation
30A	85 psi	399 psi	245%
40A	100 psi	508 psi	200%
50A	114 psi	508 psi	190%
60A	121 psi	580 psi	160%
70A	185 psi	725 psi	130%
85A	341 psi	1,088 psi	80%
95A	398 psi	1,740 psi	60%
Rigid	n/a	8,702 psi	17.5%

Material	Tensile Tear Strength	Tensile Strength	Elongation
30A	0.59 MPa	2.75 MPa	245%
40A	0.69 MPa	3.5 MPa	200%
50A	0.79 MPa	3.5 MPa	190%
60A	0.83 Mpa	4.0 Mpa	160%
70A	1.28 Mpa	5.0 Mpa	130%
85A	2.35 Mpa	7.5 Mpa	80%
95A	2.74 Mpa	12.0 Mpa	60%
Rigid	n/a	60.0 Mpa	17.5%

Our PolyJet 3D Printers

We use multiple additive machines that offer large build sizes, accurate parts, and quick production times. Our PolyJet equipment consists of:

Objet260 Connex3
Objet350 Connex3

Resources

Dummies Book

Industrial 3D Printing for Dummies

Learn about additive manufacturing technologies, applications, and best practices to accelerate product development from prototype through production.

Get Dummies Book