Tough Resin · grade
Tough Resin Rigid-Pro
Properties of the Rigid-Pro condition, compared with the other Tough Resin grades.
Use when dimensional stability under load and a higher HDT matter more than elongation (jigs, moulds, precise fixtures).
What is Tough Resin Rigid-Pro?
Tough Resin Rigid-Pro is Tough Resin in the Rigid-Pro grade — use when dimensional stability under load and a higher HDT matter more than elongation (jigs, moulds, precise fixtures). Tough Resin Rigid-Pro has a yield strength of 44 MPa (6.38 ksi) and a tensile strength of 61 MPa (8.85 ksi) — weaker than 64% of polymer grades. Elongation at break is 13% and the elastic modulus is 2.6 GPa (0.377 Msi). Tough Resin Rigid-Pro has a density of 1.15 g/cm³ (0.0415 lb/in³), lighter than 57% of polymer grades. Its glass-transition temperature is 80°C (176 °F). ABS-like is the default condition FabDigit quotes; Rigid-Pro is available on request or by drawing note.
Limitations
- Needs corrosion protection — 55/100, worse than 96% of polymer grades
- Difficult to weld — 5/100, worse than 90% of polymer grades
- Limited formability — 10/100, worse than 87% of polymer grades
- Absorbs moisture — dry before molding — 0.8%, worse than 80% of polymer grades
- Limited service temperature — 70°C (158 °F), worse than 78% of polymer grades
Tough Resin Rigid-Pro properties
Typical room-temperature values for Tough Resin Rigid-Pro — 11 properties are specific to this condition; the rest are grade-level values shared by every Tough Resin grade. Each bar shows where the value sits among the polymer grades in FabDigit's library — further right is higher.
Physical5
Tough Resin Rigid-Pro has a density of 1.15 g/cm³ (0.0415 lb/in³), lighter than 57% of polymer grades. Its glass-transition temperature is 80°C (176 °F).
Mechanical12
Tough Resin Rigid-Pro has a yield strength of 44 MPa (6.38 ksi) and a tensile strength of 61 MPa (8.85 ksi) — weaker than 64% of polymer grades. Elongation at break is 13% and the elastic modulus is 2.6 GPa (0.377 Msi).
Thermal10
Tough Resin Rigid-Pro 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 110 µm/m·K (61.1 µin/in·°F).
Electrical6
Tough Resin Rigid-Pro is an electrical insulator with a dielectric strength of 15 kV/mm (381 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 96% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of Tough Resin Rigid-Pro takes about 115 MJ of energy and emits 6 kg of CO₂ — more than 70% of polymer grades. Typical recycled content is 0%.
Manufacturability4
Tough Resin Rigid-Pro's machinability is good (55/100, worse than 63% of polymer grades); weldability not recommended (5/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other Tough Resin grades and fills
Tough Resin is also supplied in 6 other conditions. The full side-by-side table is on the Tough Resin overview.
- ABS-likeDefaultDefault choice for functional prototypes and enclosures that need ABS-like stiffness plus moderate impact toughness.50 MPa tensile
- GF-filledFilled tough resin for stiff, creep-resistant, higher-temperature tooling — accept brittleness and abrasive post-processing.70 MPa tensile
- Rigid-ProUse when dimensional stability under load and a higher HDT matter more than elongation (jigs, moulds, precise fixtures).61 MPa tensile
- Tough-2000Best all-round substitute for injection-moulded ABS when both stiffness and elongation are needed in one part.46 MPa tensile
- Tough-1500Pick when the part must flex and snap back repeatedly (living hinges, snap-fits, press-fit clips) rather than be stiff.33 MPa tensile
- Durable-PPChoose for wear surfaces, bearings, squeeze bottles and low-friction assemblies where polypropylene-like compliance beats stiffness.32 MPa tensile
Working with Tough Resin Rigid-Pro
Is Tough Resin easy to machine?
Drills, taps and mills cleanly with sharp tools, high speed and light feed; keep cutters cool because the part softens above ~50 °C and edges chip if the resin is under-cured.
Can Tough Resin be welded?
Thermoset — cannot be heat welded; join with cyanoacrylate, epoxy or a bead of the same liquid resin flashed under a 405 nm lamp.
Can Tough Resin be formed, bent or molded?
Shape is set by printing: orient parts so hinges and snap features load across layers, use 50–100 µm layers, wash 5–10 min in IPA (avoid long soaks that swell and soften) and post-cure with heat + 405 nm UV to reach datasheet strength.
What surface finishes work on Tough Resin?
Sands and wet-polishes to a smooth surface; primer + paint or vapour-free spray finishes adhere well, but plan for post-cure shrinkage (~0.2–0.5 %) and use UV-blocking topcoats since bare parts yellow and embrittle in sunlight.
Tough Resin 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 |
|---|---|---|
| urethane acrylate / epoxy acrylate oligotoughening backbone; determines elongation and impact | 30 – 60 | 45 |
| photoinitiator (acylphosphine oxide type405 nm sensitised | 0.5 – 4 | 2 |
| pigment / opacifier / UV blockercontrols cure depth and colour | 0.1 – 3 | 1 |
| additives (stabilisers, dispersants, def | 0.1 – 3 | 1 |
| acrylate & methacrylate reactive monomerviscosity control and cross-link density | ≥ 25 (balance) | — |
Tough Resin Rigid-Pro — frequently asked
What is Tough Resin Rigid-Pro used for?
Tough Resin Rigid-Pro is typically used for snap-fit housings and clips, living hinges, functional assembly prototypes, press-fit and threaded test parts, handheld device enclosures and drop-test prototypes. In short: impact-resistant ABS-like resin.
What is the yield strength of Tough Resin Rigid-Pro?
Tough Resin Rigid-Pro has a typical yield strength of 44 MPa (6.38 ksi) and a tensile strength of 61 MPa (8.85 ksi) — weaker than 64% of polymer grades. Strength varies by condition: see the 7 listed tempers.
Is Tough Resin Rigid-Pro easy to machine?
Reasonably — machinability is rated good (55/100, worse than 63% of polymer grades). Drills, taps and mills cleanly with sharp tools, high speed and light feed; keep cutters cool because the part softens above ~50 °C and edges chip if the resin is under-cured.
Can Tough Resin Rigid-Pro be welded?
Not readily — weldability is rated not recommended (5/100). Thermoset — cannot be heat welded; join with cyanoacrylate, epoxy or a bead of the same liquid resin flashed under a 405 nm lamp.
What surface finishes work on Tough Resin Rigid-Pro?
Sands and wet-polishes to a smooth surface; primer + paint or vapour-free spray finishes adhere well, but plan for post-cure shrinkage (~0.2–0.5 %) and use UV-blocking topcoats since bare parts yellow and embrittle in sunlight.
Can Tough Resin Rigid-Pro be formed, bent or molded?
Shape is set by printing: orient parts so hinges and snap features load across layers, use 50–100 µm layers, wash 5–10 min in IPA (avoid long soaks that swell and soften) and post-cure with heat + 405 nm UV to reach datasheet strength.
What is the maximum service temperature of Tough Resin Rigid-Pro?
Tough Resin Rigid-Pro is rated for continuous use to about 70°C (158 °F), and briefly to 70°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in Tough Resin Rigid-Pro?
Yes — Tough Resin Rigid-Pro is available for injection molding and 3D printing with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- Tough 1500 / Tough 2000 / Durable / Grey Pro Resin technical data sheets — Formlabs (2024)
- ABS-like / ABS — eSUN / Anycubic / UnionTech (2024)
- ASTM D638 / D790 / D256 / D648 test methods for plastics — ASTM International (2022)
- Additive Manufacturing Technologies — vat photopolymerization materials — 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.