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Laperos vs LCP Type III

Polymer · grade comparison

Laperos and LCP Type III are both polymer grades. Laperos is the stronger of the two: tensile strength 165 MPa (23.9 ksi) against 150 MPa (21.8 ksi) for LCP Type III, about 10% more. In exchange, LCP Type III is the more ductile: elongation 3% versus 2.5% for Laperos. LCP Type III is lighter (1.4 g/cm³ vs 1.61 g/cm³ for Laperos) and Laperos is stiffer (14 GPa vs 10 GPa). On the shop floor, LCP Type III machines more easily (good vs fair).

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

LCP Type IIIChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

Laperos vs LCP Type III: properties

LaperosLCP Type III

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

14 GPa2 Msi
10 GPa1.5 Msi

Shear Modulus

3 GPa0.44 Msi
1.2 GPa0.17 Msi

Poisson's Ratio

0.35
0.36

Tensile Strength (Ultimate)

165 MPa23.9 ksi
150 MPa21.8 ksi

Elongation at Break

2.5%
3%

Flexural Strength

190 MPa27.6 ksi
140 MPa20.3 ksi

Flexural Modulus

13 GPa1.9 Msi
9 GPa1.3 Msi

Izod Impact, Notched

100 J/m1.9 ft·lbf/in
200 J/m3.7 ft·lbf/in

Hardness, Rockwell M

85 HRM
72 HRM

Compressive Strength

—
65 MPa9.4 ksi

Shear Strength

—
55 MPa8 ksi

Same in both: Hardness, Shore D 88 Shore D

Physical

Density and transition temperatures.

Density

1.61 g/cm³0.06 lb/in³
1.4 g/cm³0.05 lb/in³

Melting Temperature (Tm)

280°C536 °F
285°C545 °F

Glass Transition (Tg)

120°C248 °F
105°C221 °F

Same in both: Water Absorption (24 h) 0.02% · Water Absorption (Saturation) 0.06%

Thermal

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

Thermal Conductivity

0.35 W/m·K0.2 BTU/hr·ft·°F
0.3 W/m·K0.17 BTU/hr·ft·°F

Specific Heat Capacity

1,050 J/kg·K0.25 BTU/lb·°F
1,200 J/kg·K0.29 BTU/lb·°F

Max Service Temperature (continuous)

220°C428 °F
170°C338 °F

Heat Deflection Temp. @ 0.45 MPa

265°C509 °F
225°C437 °F

Heat Deflection Temp. @ 1.8 MPa

230°C446 °F
185°C365 °F

Limiting Oxygen Index

40%
38%

Max Service Temperature (short-term)

280°C536 °F
230°C446 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 8 µm/m·K4.4 µin/in·°F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹⁴ Ω·m3.94×10²¹ µΩ·in
1×10¹³ Ω·m3.94×10²⁰ µΩ·in

Dielectric Constant (1 MHz)

3.9
3.4

Dissipation Factor (1 MHz)

0.006
0.004

Volume Resistivity

1×10¹⁶ Ω·cm
1×10¹⁵ Ω·cm

Surface Resistivity

1×10¹⁶ Ω
1×10¹⁵ Ω

Same in both: Dielectric Strength 35 kV/mm889 V/mil · Comparative Tracking Index (CTI) 200 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

90 / 100
92 / 100

UV / Weathering Resistance

50 / 100
45 / 100

Manufacturability

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

Machinability

40 / 100
55 / 100

Weldability

25 / 100
30 / 100

Formability (cold)

15 / 100
20 / 100

Polishability

35 / 100
40 / 100

Mold Shrinkage

0.1%
0.15%

Mold Temperature (typ.)

100°C212 °F
90°C194 °F

Melt Flow Rate

—
40 g/10 min

Same in both: Processing Melt Temperature (typ.) 310°C590 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

190 MJ/kg81,685 BTU/lb
180 MJ/kg77,386 BTU/lb

Embodied Carbon (primary production)

9 kg CO₂/kg
8.5 kg CO₂/kg

Embodied Water

—
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
107 kN·m/kg

Specific Stiffness (E / density)

8.7 MN·m/kg
7.1 MN·m/kg

Same in both: Thermal Diffusivity 0.2 mm²/s · Thermal Shock Resistance Index 1

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 scale

Manufacturing and finishing

CapabilityLaperosLCP Type III
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Laperos vs LCP Type III — frequently asked

Is Laperos stronger than LCP Type III?

Yes. Laperos has a typical tensile strength of 165 MPa (23.9 ksi) against 150 MPa (21.8 ksi) for LCP Type III — about 10% more.

Which is cheaper, Laperos or LCP Type III?

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, Laperos or LCP Type III?

LCP Type III. Its machinability rates good (55/100) against fair (40/100) for Laperos; for welding the order is LCP Type III first (poor, 30/100) then Laperos (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Laperos and LCP Type III 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.