Digital ABS Plus HT
Heat-treated state
also RGD515, RGD535
HT = thermally post-treated (annealed) Digital ABS Plus
Pick when the part must survive >70 °C briefly — a controlled oven ramp raises HDT to about 85 °C at the cost of some ductility and dimensional accuracy.
Values for the HT condition
Other Digital ABS Plus grades and fills
Digital ABS Plus is listed in 4 conditions; see the grade overview at Digital ABS Plus.
Compare all 4 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Thin-wall section (<2 mm) as-printed | Property set quoted by the producer for thin walls — noticeably lower notched impact, use for shells and clips rather than load-bearing bosses. | 47 | 55 | 20 | 85 Shore D |
light-coloured Digital ABS Plus | Same mechanical family in an ivory/off-white tint for parts that will be painted or shown to customers. | 50 | 57 | 30 | 86 Shore D |
HTThis page Thermally post-treated (annealed) Digital ABS Plus | Pick when the part must survive >70 °C briefly — a controlled oven ramp raises HDT to about 85 °C at the cost of some ductility and dimensional accuracy. | 55 | 60 | 15 | 88 Shore D |
GREENDefault as-printed Digital ABS Plus | Standard green-tinted Digital ABS Plus straight off the PolyJet machine — default for functional prototypes and snap-fits. | — | 57 | 30 | 86 Shore D |
What is Digital ABS Plus HT?
Digital ABS Plus HT is Digital ABS Plus heat treated to HT — pick when the part must survive >70 °C briefly — a controlled oven ramp raises HDT to about 85 °C at the cost of some ductility and dimensional accuracy. Digital ABS Plus HT has a tensile strength of 60 MPa (8.7 ksi), stronger than 68% of polymer grades. Elongation at break is 15% and the elastic modulus is 3 GPa (0.435 Msi). Digital ABS Plus HT has a density of 1.18 g/cm³ (0.0424 lb/in³), lighter than 52% of polymer grades. Its glass-transition temperature is 50°C (122 °F). GREEN is the default condition FabDigit quotes; HT is available on request or by drawing note.
Advantages
- Low, predictable mold shrinkage — 0.25%, better than 93% of polymer grades
- Polishes to a fine finish — 70/100, better than 77% of polymer grades
Limitations
- Absorbs moisture — dry before molding — 1.7%, worse than 94% of polymer grades
- Difficult to weld — 5/100, worse than 89% of polymer grades
- Degrades in UV without stabilisers — 20/100, worse than 88% of polymer grades
- Limited service temperature — 70°C (158 °F), worse than 77% of polymer grades
Digital ABS Plus HT properties
Typical room-temperature values for Digital ABS Plus HT; 25 are specific to this condition. Other listed values are Digital ABS Plus reference data and may not represent this condition. Bars are the position among polymer grades.
Physical4
Digital ABS Plus HT has a density of 1.18 g/cm³ (0.0424 lb/in³), lighter than 52% of polymer grades. Its glass-transition temperature is 50°C (122 °F).
Mechanical10
Digital ABS Plus HT has a tensile strength of 60 MPa (8.7 ksi), stronger than 68% of polymer grades. Elongation at break is 15% and the elastic modulus is 3 GPa (0.435 Msi).
Thermal8
Digital ABS Plus HT is rated for continuous service to 70°C (158 °F). It conducts heat at 0.2 W/m·K (0.116 BTU/hr·ft·°F), worse than 56% of polymer grades. Thermal expansion is 80 µm/m·K (44.4 µin/in·°F).
Electrical4
Digital ABS Plus HT is an electrical insulator with a dielectric strength of 18 kV/mm (457.2 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (88/100), better than 74% of polymer grades. UV resistance is poor.
Sustainability3
Producing a kilogram of Digital ABS Plus HT takes about 130 MJ of energy and emits 6.5 kg of CO₂ — more than 77% of polymer grades. Typical recycled content is 0%.
Manufacturability4
Digital ABS Plus HT's machinability is good (55/100, worse than 64% of polymer grades); weldability not recommended (5/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Digital ABS Plus HT
Is Digital ABS Plus easy to machine?
Drills, taps and mills cleanly with sharp tools and light feeds; keep cutters cool since the material softens near 55 °C and edges chip if unsupported.
Can Digital ABS Plus be welded?
Thermoset — no heat welding; join with cyanoacrylate, two-part epoxy or mechanical fasteners/heat-set inserts (insert temperature must be controlled).
Can Digital ABS Plus be formed, bent or molded?
Formed only by PolyJet jetting; orient parts so critical walls are >2 mm, allow full UV cure, and use a controlled oven anneal if higher HDT is needed.
What surface finishes work on Digital ABS Plus?
Remove SUP705/706 support by waterjet or caustic soak, then sand, prime and paint; parts accept vapour-free primers and standard acrylic paints but should be UV-protected for display use.
Digital ABS Plus chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| acrylic monomers/oligomers (RGD515 Plus toughening acrylate resin | ≈ 55 | 55 |
| acrylic monomers/oligomers (RGD535 comporigid high-modulus acrylate resin | ≈ 40 | 40 |
| photoinitiatorfree-radical UV initiator package | ≈ 2 | 2 |
| inorganic filler / pigment (ash)measured ash content per producer datasheet | 0.23 – 0.26 | 0.25 |
Digital ABS Plus HT — frequently asked
What is Digital ABS Plus HT used for?
Digital ABS Plus HT is typically used for automotive under-hood mockups, electrical enclosure prototypes and heat-resistant fixtures. In short: toughest rigid PolyJet resin; highest heat resistance in family; thin-wall capable.
What is the tensile strength of Digital ABS Plus HT?
Digital ABS Plus HT has a typical tensile strength of 60 MPa (8.7 ksi) — stronger than 68% of polymer grades. Strength varies by condition: see the 4 listed tempers.
Is Digital ABS Plus HT easy to machine?
Reasonably — machinability is rated good (55/100, worse than 64% of polymer grades). Drills, taps and mills cleanly with sharp tools and light feeds; keep cutters cool since the material softens near 55 °C and edges chip if unsupported.
Can Digital ABS Plus HT be welded?
Not readily — weldability is rated not recommended (5/100). Thermoset — no heat welding; join with cyanoacrylate, two-part epoxy or mechanical fasteners/heat-set inserts (insert temperature must be controlled).
What surface finishes work on Digital ABS Plus HT?
Remove SUP705/706 support by waterjet or caustic soak, then sand, prime and paint; parts accept vapour-free primers and standard acrylic paints but should be UV-protected for display use.
Can Digital ABS Plus HT be formed, bent or molded?
Formed only by PolyJet jetting; orient parts so critical walls are >2 mm, allow full UV cure, and use a controlled oven anneal if higher HDT is needed.
What is the maximum service temperature of Digital ABS Plus HT?
Digital ABS Plus HT is rated for continuous use to about 70°C (158 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Digital ABS Plus GREEN and Digital ABS Plus HT?
GREEN is the default condition — standard green-tinted Digital ABS Plus straight off the PolyJet machine — default for functional prototypes and snap-fits. HT: pick when the part must survive >70 °C briefly — a controlled oven ramp raises HDT to about 85 °C at the cost of some ductility and dimensional accuracy.
Sources
- PolyJet Digital ABS Plus (RGD5160-DM / RGD5161-DM) material data sheet — Stratasys (2021)
- PolyJet Materials Data Sheet — Rigid Opaque and Digital Materials — Stratasys (2022)
- ASTM D638 / D790 / D256 / D648 / D2240 / D570 — ASTM International (2022)
- Additive Manufacturing Technologies (material jetting chapter) — Springer (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.