LCP-GF30
ASTM D6779
LCP-GF30 (D6779) is a generic 30 % glass-fiber-reinforced liquid-crystal polymer classification offered across all LCP brands, with standard, high-heat, laser-weldable, high-flow, LDS, low-Dk, ESD and medical variants.
Reference datasheet — LCP-GF30 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
LCP-GF30 grades and fills
LCP-GF30 is supplied in 6 conditions, soft to hard.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Low-warpage glass + mineral filled | Use for flat, large or tight-tolerance parts where anisotropic shrinkage and warpage of pure GF grades is unacceptable. | 140 | 2.2 | 92 HRM | |
High-heat Type I 30% GF LCP | Pick when lead-free SMT reflow at 260–280 °C or continuous 240 °C service is required (Xydar / Sumikasuper class). | 145 | 2 | ||
Conductive / static-dissipative 30 % filled grade | Use for IC test sockets, burn-in hardware and wafer/chip handling parts requiring 10⁴–10⁹ Ω surface resistivity. | 145 | 1.8 | 92 HRM | |
Laser direct structuring / platable 30 % GF grade | For molded interconnect devices and antenna carriers where circuit traces are laser-activated and copper-plated on the molded part. | 150 | 2 | 92 HRM | |
low dielectric loss 30 % filled grade for mmWave / 5G | Select for antenna housings, 5G connectors and mmWave modules where Df at 10–77 GHz must stay below ~0.004. | 160 | 2.5 | 89 HRM | |
High-flow thin-wall 30 % GF grade | Choose for 0.15–0.3 mm wall fine-pitch connectors and long flow-length parts where fill pressure limits the standard grade. | 165 | 2.5 | 90 HRM |
Supply forms, finishes and certifications
Ways LCP-GF30 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
MED | Medical / biocompatible 30 % GF grade | Certification |
STDDefault | Standard general-purpose 30% GF LCP | Standard supply |
What is LCP-GF30?
LCP-GF30 (D6779) is a generic 30 % glass-fiber-reinforced liquid-crystal polymer classification offered across all LCP brands, with standard, high-heat, laser-weldable, high-flow, LDS, low-Dk, ESD and medical variants. Engineers specify it for increased stiffness, dimensional stability and reduced anisotropy compared with unfilled LCP in thin-wall injection-molded parts, at 180 MPa tensile strength and 220 C maximum service temperature. The glass fiber is abrasive to tooling, knit lines remain weak, and the low-viscosity melt flashes easily unless clamping and venting are controlled. Unfilled LCP is the alternative where flow and surface finish matter more than stiffness. LCP-GF30 has a density of 1.61 g/cm³ (0.0582 lb/in³), heavier than 93% of polymer grades. Its glass-transition temperature is 120°C (248 °F). LCP-GF30 has a tensile strength of 180 MPa (26.1 ksi), stronger than 98% of polymer grades. Elongation at break is 2.8% and the elastic modulus is 15 GPa (2.18 Msi).
What is LCP-GF30 used for?
- structural electrical connectors
- reflow-compatible surface-mount parts
- precision brackets
- chemical-resistant fittings
Advantages
- Stiff — 15 GPa (2.18 Msi), better than 99% of polymer grades
- Low, predictable mold shrinkage — 0.2%, better than 94% of polymer grades
- Conducts heat well — 0.4 W/m·K (0.231 BTU/hr·ft·°F), better than 93% of polymer grades
- Low moisture uptake — 0.02%, better than 92% of polymer grades
- Good corrosion resistance — 92/100, better than 91% of polymer grades
Limitations
- Heavy — 1.61 g/cm³ (0.0582 lb/in³), worse than 93% of polymer grades
- High embodied carbon — 9 kg CO₂/kg, worse than 88% of polymer grades
- Limited formability — 10/100, worse than 87% of polymer grades
- Limited ductility — 2.8%, worse than 86% of polymer grades
LCP-GF30 properties
Typical room-temperature values; bars are the position among polymer grades.
Physical5
LCP-GF30 has a density of 1.61 g/cm³ (0.0582 lb/in³), heavier than 93% of polymer grades. Its glass-transition temperature is 120°C (248 °F).
Mechanical11
LCP-GF30 has a tensile strength of 180 MPa (26.1 ksi), stronger than 98% of polymer grades. Elongation at break is 2.8% and the elastic modulus is 15 GPa (2.18 Msi).
Thermal10
LCP-GF30 is rated for continuous service to 220°C (428 °F). It conducts heat at 0.4 W/m·K (0.231 BTU/hr·ft·°F), better than 93% of polymer grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical7
LCP-GF30 is an electrical insulator with a dielectric strength of 35 kV/mm (889 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of polymer grades. UV resistance is fair.
Sustainability4
Producing a kilogram of LCP-GF30 takes about 180 MJ of energy and emits 9 kg of CO₂ — more than 87% of polymer grades. Typical recycled content is 0%.
Manufacturability7
LCP-GF30's machinability is good (55/100, worse than 64% of polymer grades); weldability poor (25/100); formability not recommended (10/100).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. LCP-GF30 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with LCP-GF30
Is LCP-GF30 easy to machine?
Machines cleanly with sharp PCD or carbide tools at high speed and light feed, but glass fiber is abrasive and the skin layer fibrillates — avoid dull tools and use climb milling with air cooling.
Can LCP-GF30 be welded?
Weak weld/knit lines and poor ultrasonic welding due to the oriented skin; use laser transmission welding, adhesive bonding with surface treatment, or design mechanical/insert-molded joints instead.
Can LCP-GF30 be formed, bent or molded?
Dry 4 h at 140–150 °C, mold at 300–340 °C (Type I 350–400 °C) with 60–150 °C tools, high injection speed and small gates; extremely low viscosity fills 0.2 mm walls but flashes easily, so vent and clamp precisely and orient gates to control fiber-direction shrinkage.
LCP-GF30 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 |
|---|---|---|
| glass fiberchopped E-glass, silane sized, 10–13 µm diameter | 28 – 32 | 30 |
| pigments / processing additivescarbon black or TiO2, lubricant, nucleant; no halogen FR needed | 0 – 2 | 0.5 |
| aromatic copolyester LCP resin (HBA / HNthermotropic liquid-crystal polyester matrix; Type II (HBA/HNA) or Type I (HBA/biphenol/terephthalic) | ≥ 68 (balance) |
What surface finishes work on LCP-GF30?
Accepts vacuum metallizing, electroless Cu/Ni plating (LDS or etched grades) and laser marking; painting/printing needs plasma or flame pretreatment because of the low-energy, chemically inert surface.
Equivalent designations
Standards and trade names that resolve to LCP-GF30 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- D6779
How much does LCP-GF30 cost?
LCP-GF30 is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
LCP-GF30 — frequently asked
What is LCP-GF30 used for?
LCP-GF30 is typically used for structural electrical connectors, reflow-compatible surface-mount parts, precision brackets and chemical-resistant fittings. In short: stiffest general-purpose LCP; reduced anisotropy versus unfilled; brand-independent 30 % glass grade.
What is the tensile strength of LCP-GF30?
LCP-GF30 has a typical tensile strength of 180 MPa (26.1 ksi) — stronger than 98% of polymer grades. Strength varies by condition: see the 6 listed tempers.
Is LCP-GF30 easy to machine?
Reasonably — machinability is rated good (55/100, worse than 64% of polymer grades). Machines cleanly with sharp PCD or carbide tools at high speed and light feed, but glass fiber is abrasive and the skin layer fibrillates — avoid dull tools and use climb milling with air cooling.
Can LCP-GF30 be welded?
Not readily — weldability is rated poor (25/100). Weak weld/knit lines and poor ultrasonic welding due to the oriented skin; use laser transmission welding, adhesive bonding with surface treatment, or design mechanical/insert-molded joints instead.
What surface finishes work on LCP-GF30?
Accepts vacuum metallizing, electroless Cu/Ni plating (LDS or etched grades) and laser marking; painting/printing needs plasma or flame pretreatment because of the low-energy, chemically inert surface.
Can LCP-GF30 be formed, bent or molded?
Dry 4 h at 140–150 °C, mold at 300–340 °C (Type I 350–400 °C) with 60–150 °C tools, high injection speed and small gates; extremely low viscosity fills 0.2 mm walls but flashes easily, so vent and clamp precisely and orient gates to control fiber-direction shrinkage.
What is the maximum service temperature of LCP-GF30?
LCP-GF30 is rated for continuous use to about 220°C (428 °F), and briefly to 280°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does LCP-GF30 cost?
LCP-GF30 is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Vectra LCP Product and Processing Guide (A130 series) — Celanese (2023)
- Zenite LCP grade data (6130 series) — Celanese/DuPont (2022)
- Sumikasuper LCP E-series technical data — Sumitomo Chemical (2023)
- Xydar LCP G-series datasheet — Solvay (2022)
- CAMPUS ISO 10350 single-point data, LCP GF30 compounds — CAMPUS Plastics (2024)
- Engineered Materials Handbook Vol. 2: Engineering Plastics — ASM International (1988)
- UL 94 Flammability of Plastic Materials — Underwriters Laboratories (2020)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.