High Concept Modeling Material
DraftGrey is a rigid material used exclusively with the Super High Speed print mode for concept modeling.
Models will have a medium opacity and smooth finish. Printing at 2x the speed of High Speed mode with a 57 microns layer thickness, DraftGrey is the cheapest and fastest way to model on Stratasys PolyJet 3D printers.
DraftGrey Material Profile
Learn more about the benefits PolyJet 3D printed parts
TriMech can bring your boldest ideas to life with the J850 3D printer from Stratasys.
With the Super High-Speed Draft Mode and the full spectrum of full-color Pantone color validation, we can help you to create better designs, faster iterations, and more models all in one print!
Main Uses
With DraftGrey we can print concept models twice as fast as High Speed Mode. Models made with DraftGrey have a medium opacity and a smooth finish.
DraftGrey Material Applications
Concept designs
Prototypes
Drafts
DraftGrey Material Specification
Properties and testing results for the 3D printing material
| Mechanical Property | ASTM | Value |
|---|---|---|
| Tensile Strength | D-638-03 | 50 – 65 MPa (7,250 – 9,450 psi) |
| Elongation at Break | D-638-05 | 10 – 25% |
| Modulus of Elasticity | D-638-04 | 2,000 – 3,000 MPa (290,000 – 435,000 psi) |
| Flexural Strength | D-790-03 | 75 – 110 MPa (11,000 – 16,000 psi) |
| Flexural Modulus | D-790-04 | 2,200 – 3,200 MPa (320,000 – 465,000 psi) |
| HDT, °C @ 0.45 Mpa | D-648-06 | 45 – 50 °C (113 – 122 °F) |
| HDT, °C @ 1.82 Mpa | D-648-07 | 45 – 50 °C (113 – 122 °F) |
| Izod Notched Impact | D-256-06 | 20 – 30 J/m (0.375 – 0.562 ft-lb/inch) |
| Water Absorption | D-570-98 | 24hr 1.1 – 1.5% |
| Tg | D-7028 (DMA) | 52 – 54 °C (126 – 129 °F) |
| Shore Hardness | Scale D | 83 – 86 (Scale D) |
| Rockwell Hardness | Scale M | 73 – 76 (Scale M) |
| Polymerized Density | Scale D-792 | 1.17 – 1.18 g/cm3 |
| Ash Content | USP281 | 0.23 – 0.26% |
| Other | Test Method | Value | |
|---|---|---|---|
| Black / Translucent | White | ||
| Shore Hardness | ASTM D-2240 | 30 – 35 Scale A | 30 – 40 Scale A |
| Polymerized Density | ASTM D-792 | 1.14 – 1.15 g/cm3 | 1.14 – 1.15 g/cm3 |
Advantages of PolyJet Technology
Advantages of parts built with a Stratasys PolyJet Machine
Realistic Parts
Stratasys PolyJet 3D Printers are based on proven technology, which creates precise prototypes that set the standard for finished-product realism.
Their fine resolution makes complex shapes, intricate details and smooth surfaces possible.
Precise Models
PolyJet 3D Printing works by jetting layers of liquid photopolymer onto a build tray and instantly curing them with UV light.
The fine layers build up to create a precise 3D model or prototype. Models are ready to handle right out of the 3D printer, with no post-curing needed.
