LCP Type II CF30 vs LCP Type II GF30
Polymer · LCP Type II grade comparison
LCP Type II CF30 and LCP Type II GF30 are two grades of the same polymer grade, LCP Type II: CF30 (30 % carbon-fiber reinforced) versus GF30 (30 % glass-fiber reinforced). The chemistry is identical, so every difference below comes from the condition. LCP Type II CF30 is the stronger of the two: tensile strength 190 MPa (27.6 ksi) against 140 MPa (20.3 ksi) for LCP Type II GF30, about 36% more. In exchange, LCP Type II GF30 is the more ductile: elongation 2.1% versus 1.3% for LCP Type II CF30. LCP Type II CF30 is lighter (1.52 g/cm³ vs 1.62 g/cm³ for LCP Type II GF30) and LCP Type II CF30 is stiffer (30 GPa vs 15 GPa).
LCP Type II CF30Choose it when strength drives the design, or when weight is the constraint.
LCP Type II GF30Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
LCP Type II CF30 vs LCP Type II GF30: 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.
LCP Type II CF30LCP Type II GF30
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Elongation at Break
Flexural Strength
Flexural Modulus
Izod Impact, Notched
Same in both: Shear Modulus 1.5 GPa0.22 Msi · Poisson's Ratio 0.4 · Compressive Strength 70 MPa10.2 ksi · Shear Strength 45 MPa6.5 ksi · Hardness, Shore D 87 Shore D · Hardness, Rockwell M 85 HRM
Physical
Density and transition temperatures.
Density
Same in both: Melting Temperature (Tm) 280°C536 °F · Glass Transition (Tg) 110°C230 °F · Water Absorption (24 h) 0.02% · Water Absorption (Saturation) 0.1%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Heat Deflection Temp. @ 0.45 MPa
Heat Deflection Temp. @ 1.8 MPa
Max Service Temperature (short-term)
Same in both: Specific Heat Capacity 1,200 J/kg·K0.29 BTU/lb·°F · Min Service Temperature -100°C-148 °F · Limiting Oxygen Index 38%
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Volume Resistivity
Surface Resistivity
Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 35 kV/mm889 V/mil · Dissipation Factor (1 MHz) 0.008 · Comparative Tracking Index (CTI) 200 V
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 90 / 100 · UV / Weathering Resistance 40 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Mold Shrinkage
Same in both: Weldability 25 / 100 · Formability (cold) 15 / 100 · Polishability 40 / 100 · Processing Melt Temperature (typ.) 310°C590 °F · Mold Temperature (typ.) 100°C212 °F
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 250 MJ/kg107,481 BTU/lb · Embodied Carbon (primary production) 12 kg CO₂/kg · Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 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.
LCP Type II CF30 vs LCP Type II GF30 — frequently asked
Is LCP Type II CF30 stronger than LCP Type II GF30?
Yes. LCP Type II CF30 has a typical tensile strength of 190 MPa (27.6 ksi) against 140 MPa (20.3 ksi) for LCP Type II GF30 — about 36% more.
Which grade does FabDigit quote by default, CF30 or GF30?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which is easier to machine, LCP Type II CF30 or LCP Type II GF30?
LCP Type II GF30, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for LCP Type II CF30.
Ready to make it?
Upload a CAD file and FabDigit prices the part in LCP Type II CF30 and LCP Type II GF30 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.