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RGD525 vs VeroBlackPlus

Polymer · grade comparison

RGD525 and VeroBlackPlus are both polymer grades. RGD525 is the stronger of the two: yield strength 62 MPa (8.99 ksi) against 50 MPa (7.25 ksi) for VeroBlackPlus, about 24% more; tensile strength follows at 75 MPa (10.9 ksi) vs 55 MPa (7.98 ksi). In exchange, VeroBlackPlus is the more ductile: elongation 17% versus 12% for RGD525. RGD525 is stiffer (3.4 GPa vs 2.5 GPa) and RGD525 runs hotter in service (55°C vs 45°C continuous). On the shop floor, VeroBlackPlus welds better (10 vs 0 out of 100).

RGD525Choose it when strength drives the design, or when the part sees heat.

VeroBlackPlusChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

RGD525 vs VeroBlackPlus: properties

RGD525VeroBlackPlus

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

3.4 GPa0.49 Msi
2.5 GPa0.36 Msi

Tensile Strength (Ultimate)

75 MPa10.9 ksi
55 MPa8 ksi

Yield Strength (0.2% offset)

62 MPa9 ksi
50 MPa7.3 ksi

Elongation at Break

12%
17%

Compressive Strength

90 MPa13.1 ksi
80 MPa11.6 ksi

Flexural Strength

120 MPa17.4 ksi
90 MPa13.1 ksi

Flexural Modulus

3.4 GPa0.49 Msi
2.6 GPa0.38 Msi

Shear Strength

50 MPa7.3 ksi
38 MPa5.5 ksi

Fracture Toughness (K_IC)

1.1 MPa·√m1 ksi·√in
1.4 MPa·√m1.3 ksi·√in

Hardness, Shore D

87 Shore D
84 Shore D

Hardness, Rockwell M

87 HRM
80 HRM

Hardness, Rockwell R

118 HRR
115 HRR

Same in both: Poisson's Ratio 0.35 · Izod Impact, Notched 25 J/m0.47 ft·lbf/in

Physical

Density and transition temperatures.

Glass Transition (Tg)

63°C145 °F
53°C127 °F

Water Absorption (24 h)

1.7%
1.3%

Water Absorption (Saturation)

2.5%
1.8%

Same in both: Density 1.18 g/cm³0.04 lb/in³

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

55°C131 °F
45°C113 °F

Heat Deflection Temp. @ 0.45 MPa

65°C149 °F
47°C117 °F

Heat Deflection Temp. @ 1.8 MPa

57°C135 °F
43°C109 °F

Vicat Softening Point (B50)

60°C140 °F
50°C122 °F

Max Service Temperature (short-term)

75°C167 °F
60°C140 °F

Same in both: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F · Specific Heat Capacity 1,500 J/kg·K0.36 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 80 µm/m·K44.4 µin/in·°F · Min Service Temperature -20°C-4 °F · Limiting Oxygen Index 19%

Electrical

Conductivity and insulation.

Dielectric Constant (1 MHz)

3.1
—

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
70 / 100

UV / Weathering Resistance

22 / 100
30 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

50 / 100
55 / 100

Weldability

0 / 100
10 / 100

Formability (cold)

8 / 100
5 / 100

Polishability

60 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

115 MJ/kg49,441 BTU/lb
110 MJ/kg47,292 BTU/lb

Same in both: Embodied Carbon (primary production) 5.5 kg CO₂/kg · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

64 kN·m/kg
47 kN·m/kg

Specific Stiffness (E / density)

2.9 MN·m/kg
2.1 MN·m/kg

Modulus of Resilience

574 kJ/m³
500 kJ/m³

Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scaleVeroBlackPlusRGD525

Manufacturing and finishing

CapabilityRGD525VeroBlackPlus
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

RGD525 vs VeroBlackPlus — frequently asked

Is RGD525 stronger than VeroBlackPlus?

Yes. RGD525 has a typical yield strength of 62 MPa (8.99 ksi) against 50 MPa (7.25 ksi) for VeroBlackPlus — about 24% more. Tensile strength is 75 MPa (10.9 ksi) vs 55 MPa (7.98 ksi).

Which is cheaper, RGD525 or VeroBlackPlus?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, RGD525 or VeroBlackPlus?

VeroBlackPlus. Its machinability rates good (55/100) against fair (50/100) for RGD525; for welding the order is VeroBlackPlus first (not recommended, 10/100) then RGD525 (not recommended, 0/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in RGD525 and VeroBlackPlus side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.