LCP Type II vs LCP Type III
Polymer · grade comparison
LCP Type II and LCP Type III are both polymer grades. LCP Type II is the stronger of the two: tensile strength 180 MPa (26.1 ksi) against 150 MPa (21.8 ksi) for LCP Type III, about 20% more. LCP Type II is the more ductile: elongation 3.5% versus 3% for LCP Type III. LCP Type II runs hotter in service (200°C vs 170°C continuous).
LCP Type IIChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
LCP Type II vs LCP Type III: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all polymer grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Flexural Strength
Shear Strength
Izod Impact, Notched
Hardness, Shore D
Hardness, Rockwell M
Same in both: Flexural Modulus 9 GPa1.3 Msi
Physical
Density and transition temperatures.
Melting Temperature (Tm)
Glass Transition (Tg)
Water Absorption (Saturation)
Same in both: Density 1.4 g/cm³0.05 lb/in³ · Water Absorption (24 h) 0.02%
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Min Service Temperature
Heat Deflection Temp. @ 0.45 MPa
Max Service Temperature (short-term)
Same in both: Thermal Conductivity 0.3 W/m·K0.17 BTU/hr·ft·°F · Specific Heat Capacity 1,200 J/kg·K0.29 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8 µm/m·K4.4 µin/in·°F · Heat Deflection Temp. @ 1.8 MPa 185°C365 °F · Limiting Oxygen Index 38%
Electrical
Conductivity and insulation.
Dissipation Factor (1 MHz)
Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 35 kV/mm889 V/mil · Dielectric Constant (1 MHz) 3.4 · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 200 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
UV / Weathering Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Mold Shrinkage
Mold Temperature (typ.)
Melt Flow Rate
Same in both: Machinability 55 / 100 · Polishability 40 / 100 · Processing Melt Temperature (typ.) 310°C590 °F
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
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.
Manufacturing and finishing
| Capability | LCP Type II | LCP Type III |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
LCP Type II vs LCP Type III — frequently asked
Is LCP Type II stronger than LCP Type III?
Yes. LCP Type II has a typical tensile strength of 180 MPa (26.1 ksi) against 150 MPa (21.8 ksi) for LCP Type III — about 20% more.
Which is cheaper, LCP Type II or LCP Type III?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, LCP Type II or LCP Type III?
LCP Type III. Its weldability rates poor (30/100) against poor (25/100) for LCP Type II.
Ready to make it?
Upload a CAD file and FabDigit prices the part in LCP Type II 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.