Digital Materials DM-A85
Hardness band
DM-A85 = digital elastomer Shore A 85
Semi-rigid blend for living hinges, bumpers and tough flexible clips.
Values for the DM-A85 condition
Other Digital Materials grades and fills
Digital Materials is listed in 13 conditions; see the grade overview at Digital Materials.
Compare all 13 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Digital elastomer Shore A 40 | Soft grip and cushioning surfaces overmoulded onto rigid DM cores. | — | 2 | 50 | 9 Shore D |
Rubber-like digital, Shore A 27–35 | Softest DM — skin-feel models, soft bellows and anatomical vessels; low tear strength, avoid load-bearing seals. | — | 2 | 220 | 30 Shore A |
Digital elastomer Shore A 50 | Mid-soft grips, gaskets and non-critical seals in multi-material prints. | — | 3 | 60 | 12 Shore D |
Digital elastomer Shore A 60 | General-purpose rubber-like DM balancing grip feel and tear resistance. | — | 4 | 60 | 17 Shore D |
Digital elastomer Shore A 70 | Firm rubber feel for handles, wheels and stiff gasket faces. | — | 5 | 50 | 23 Shore D |
DM-A85This page Digital elastomer Shore A 85 | Semi-rigid blend for living hinges, bumpers and tough flexible clips. | — | 9 | 40 | 34 Shore D |
Digital elastomer Shore A 95 | Hardest rubber-like DM — tough flexible parts bridging to rigid Vero, best tear strength of the flexible series. | — | 13 | 28 | 45 Shore D |
Full-colour digital blend (VeroVivid CMYK / PANTONE-matched) | For J735/J750/J850 full-colour models — colour and texture mapping with rigid Vero mechanics. | 48 | 55 | 17 | 84 Shore D |
Digital ABS2 | Choose over Digital ABS Plus for very thin walls (<1.2 mm) and better dimensional stability at similar toughness. | 50 | 58 | 30 | 86 Shore D |
Rigid opaque digital blend | Standard rigid DM for appearance models and fit checks where impact toughness is not critical. | — | 55 | 17 | 84 Shore D |
Transparent / translucent digital blend (VeroClear + tint) | Pick for light pipes, lenses, fluid-flow models and tinted translucent shades; needs varnish or polish for optical clarity. | — | 55 | 17 | 84 Shore D |
DM-ABS-PLUSDefault tough ABS-like blend | Default DM: pick for snap fits, thin-wall housings and functional prototypes needing the highest impact strength and HDT in the PolyJet range. | — | 57 | 30 | 86 Shore D |
High-temperature digital blend | Use where the part must survive hot-air, hot-water or under-hood checks up to ~70–80 °C after thermal post-cure. | — | 72 | 12 | 88 Shore D |
What is Digital Materials DM-A85?
Digital Materials DM-A85 is Digital Materials heat treated to DM-A85 — semi-rigid blend for living hinges, bumpers and tough flexible clips. Digital Materials DM-A85 has a tensile strength of 9 MPa (1.33 ksi), weaker than 79% of polymer grades. Elongation at break is 40% and the elastic modulus is 0.02 GPa (0.0032 Msi). Digital Materials DM-A85 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). DM-ABS-PLUS is the default condition FabDigit quotes; DM-A85 is available on request or by drawing note.
Limitations
- Limited service temperature — 50°C (122 °F), worse than 94% of polymer grades
- Absorbs moisture — dry before molding — 1.7%, worse than 94% of polymer grades
- Degrades in UV without stabilisers — 20/100, worse than 88% of polymer grades
- Difficult to machine — 38/100, worse than 83% of polymer grades
- Low stiffness — 0.02 GPa (0.0032 Msi), worse than 75% of polymer grades
Digital Materials DM-A85 properties
Typical room-temperature values for Digital Materials DM-A85; 15 are specific to this condition. Other listed values are Digital Materials reference data and may not represent this condition. Bars are the position among polymer grades.
Physical3
Digital Materials DM-A85 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 Materials DM-A85 has a tensile strength of 9 MPa (1.33 ksi), weaker than 79% of polymer grades. Elongation at break is 40% and the elastic modulus is 0.02 GPa (0.0032 Msi).
Thermal10
Digital Materials DM-A85 is rated for continuous service to 50°C (122 °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 85 µm/m·K (47.2 µin/in·°F).
Electrical5
Digital Materials DM-A85 is an electrical insulator with a dielectric strength of 18 kV/mm (457.2 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (82/100), better than 56% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of Digital Materials DM-A85 takes about 125 MJ of energy and emits 6.5 kg of CO₂ — more than 75% of polymer grades. Typical recycled content is 0%.
Manufacturability3
Digital Materials DM-A85's machinability is fair (38/100, worse than 83% of polymer grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Digital Materials DM-A85
Is Digital Materials easy to machine?
Drills, taps and sands readily with sharp tools and low speed; keep cutting cool — parts soften and gum above ~55 °C, and thin sections are notch-sensitive.
Can Digital Materials be welded?
Not weldable; join with cyanoacrylate or UV-cure acrylic adhesive, or print the assembly as one multi-material body.
Can Digital Materials be formed, bent or molded?
Shaped only by the jetting process — set blend ratio and voxel layout in the print job; support material must be waterjetted/soaked out before post-cure, and thin flexible walls need generous support.
What surface finishes work on Digital Materials?
Sand 400→2000 grit then clear-coat or UV-blocking lacquer for gloss and yellowing protection; paints and vacuum metallising adhere well after light abrasion and degreasing.
Digital Materials 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 |
|---|---|---|
| acrylate/methacrylate monomers (isobornyreactive diluents forming the cured network | 35 – 65 | 50 |
| urethane- and epoxy-acrylate oligomerstoughness/elastomeric backbone; higher fraction in Tango/Agilus base | 20 – 45 | 32 |
| elastomeric polyurethane-acrylate (flexi0 % in rigid DM, up to ~100 % of the soft component in Shore A blends | 0 – 60 | 0 |
| photoinitiator (acylphosphine oxide type | 0.5 – 3 | 1.5 |
| pigments, stabilisers, surfactants | 0.5 – 3 | 1.5 |
| acrylic photopolymer matrix | balance | — |
Digital Materials DM-A85 — frequently asked
What is Digital Materials DM-A85 used for?
Digital Materials DM-A85 is typically used for multi-durometer overmolds, gradient color models and combined rigid-flexible assemblies. In short: multi-durometer in one print; A30–A95 hardness range; no tooling for overmoulds.
What is the tensile strength of Digital Materials DM-A85?
Digital Materials DM-A85 has a typical tensile strength of 9 MPa (1.33 ksi) — weaker than 79% of polymer grades. Strength varies by condition: see the 13 listed tempers.
Is Digital Materials DM-A85 easy to machine?
Not especially — machinability is rated fair (38/100, worse than 83% of polymer grades). Drills, taps and sands readily with sharp tools and low speed; keep cutting cool — parts soften and gum above ~55 °C, and thin sections are notch-sensitive.
Can Digital Materials DM-A85 be welded?
Not weldable; join with cyanoacrylate or UV-cure acrylic adhesive, or print the assembly as one multi-material body.
What surface finishes work on Digital Materials DM-A85?
Sand 400→2000 grit then clear-coat or UV-blocking lacquer for gloss and yellowing protection; paints and vacuum metallising adhere well after light abrasion and degreasing.
Can Digital Materials DM-A85 be formed, bent or molded?
Shaped only by the jetting process — set blend ratio and voxel layout in the print job; support material must be waterjetted/soaked out before post-cure, and thin flexible walls need generous support.
What is the maximum service temperature of Digital Materials DM-A85?
Digital Materials DM-A85 is rated for continuous use to about 50°C (122 °F), and briefly to 70°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Digital Materials DM-ABS-PLUS and Digital Materials DM-ABS2?
DM-ABS-PLUS is the default condition — default DM: pick for snap fits, thin-wall housings and functional prototypes needing the highest impact strength and HDT in the PolyJet range. DM-ABS2: choose over Digital ABS Plus for very thin walls (<1.2 mm) and better dimensional stability at similar toughness.
Sources
- PolyJet Digital Materials — Digital ABS Plus / Digital ABS2 data sheet — Stratasys (2023)
- Rubber-like Digital Materials (Tango / Agilus30 shore-value blends) data sheet — Stratasys (2022)
- Vero family and VeroClear / VeroVivid material specifications — Stratasys (2023)
- MED610 and biocompatible PolyJet material specification — Stratasys (2021)
- ASTM D638 / D790 / D256 / D2240 / D648 / D570 test methods cited on PolyJet datasheets — ASTM International (2022)
- Additive Manufacturing Technologies — material jetting photopolymers — Springer (Gibson, Rosen, Stucker) (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.