Name: V0 PA6 LGF40 Long Glass Fiber Compound - LFT-G
Brand: LFT-G
SKU: 314632773

Flame Retardant Long Glass Fiber Reinforced PA6 LGF40

UL94 V‑0 Flame Retardant Engineering Compound

LFT-G® PP LGF40 | 40% Long Glass Fiber Reinforced Polypropylene Compound

LFT‑G^® PA6 LGF40 FR is a 40% long glass fiber‑reinforced flame retardant polyamide 6 compound engineered for high‑performance electrical and electronic components. Delivering V‑0 rated flame retardancy, superior mechanical strength, and excellent thermal stability, it comes in ready‑to‑mold pellets that ensure consistent processing and reliable part quality.

LFT‑G^® PA6 LGF40 FR combines the inherent flame retardancy of halogen‑free PA6 with a continuous long‑glass‑fiber skeleton. Unlike conventional short‑glass‑fiber flame retardant PA6, the elongated fibers form a three‑dimensional reinforcing network that dramatically improves creep resistance, impact toughness, and dimensional stability - essential properties for electrical enclosures, connectors, and structural housings operating under thermal and mechanical stress.

Supplied as uniform plastic pellets, PA6 LGF40 FR processes easily on standard injection molding machines, enabling precision parts with low warpage and repeatable quality. This engineering thermoplastic sets a new benchmark for metal and thermoset replacement in demanding electrical applications.

Key Material Characteristics

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UL94 V‑0 Flame Retardancy

Halogen‑free flame retardant system achieves UL94 V‑0 rating at 0.8mm thickness, meeting stringent electrical safety standards for enclosures and housings.

V‑0 Rated Safety

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High Mechanical Strength

Long glass fiber reinforcement delivers exceptional tensile and flexural strength, significantly outperforming standard flame retardant PA6 compounds.

Structural Grade

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Heat Aging Resistance

Heat‑stabilized formulation maintains mechanical properties after extended exposure to elevated temperatures, ensuring long‑term reliability in electrical applications.

Long‑Term Thermal Stability

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Dimensional Stability

Low and isotropic shrinkage characteristics produce tight‑tolerance parts with minimal warpage, essential for connector and housing applications.

Precision Molding

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Electrical Insulation

High dielectric strength and tracking resistance (CTI > 600V) make this grade ideal for live‑part insulation and high‑voltage components.

High CTI Rating

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Impact Toughness

The long fiber network effectively bridges micro‑cracks and absorbs impact energy, preventing brittle failure in demanding mechanical environments.

Crack‑Bridging Toughness

Performance Balance: LGF vs. SGF

FR PA6 GF30
Short Glass Fiber

PA6 LGF40 FR★
Long Glass Fiber

The static balance scale illustrates the real‑world mechanical advantage of long glass fiber technology over short glass fiber flame retardant PA6.

Property	FR PA6 GF30 (Short Fiber)	PA6 LGF40 FR (Long Fiber)
Tensile Strength	95 – 110 MPa	145 – 165 MPa (+45%)
Flexural Modulus	5,500 – 6,800 MPa	9,000 – 10,500 MPa (+55%)
Notched Izod Impact	8 – 12 kJ/m²	25 – 35 kJ/m² (+180%)
Heat Deflection Temp (1.8MPa)	~180°C	>210°C (+30°C)
Fiber Length Retention	<0.5 mm (degraded)	2.0 – 4.0 mm (retained)
UL94 Flame Rating	V‑0 @ 1.6mm	V‑0 @ 0.8mm (thinner wall)

⚖️ Every performance metric decisively favors PA6 LGF40 FR – the clear choice for demanding electrical and structural applications.

LFT‑G^® PA6 LGF40 FR – Electrical Enclosure Upgrade Case

product-337-198

A leading European electrical equipment manufacturer supplies industrial distribution panels for commercial building infrastructure. Traditional thermoset and short‑fiber PA6 enclosures suffered from brittleness, high reject rates, and premature failure in high‑temperature environments.

Customer Challenge

Thermoset and short‑fiber FR PA6 enclosures faced five persistent issues in industrial electrical installations:

Brittle thermoset housings cracking during installation, resulting in 5‑8% field rejection rates
Short‑glass PA6 enclosures warping after thermal cycling, compromising gasket sealing and IP ratings
High moisture absorption causing dimensional drift and connector pin misalignment
Metal alternatives added excessive weight and introduced galvanic corrosion risks
Long lead times (8‑10 weeks) for thermoset compression molding with expensive tooling

PA6 LGF40 FR Solution

Our flame retardant long fiber formulation addressed every challenge:

V‑0 rated halogen‑free system maintained safety compliance
40% long glass fiber network eliminated warpage and improved impact strength
Low moisture absorption (<0.8% equilibrium) maintained connector pin alignment
Injection molding reduced cycle time from 15 minutes to under 60 seconds

Measured Results

Field rejection rate reduced from 5‑8% to less than 0.5%
Tooling cost reduced by 70% compared to thermoset compression molds
Weight reduced by 55% versus painted steel enclosures
Parts maintained IP66 rating after 1,000 thermal cycles (-40°C to 120°C)

95%

Rejection Reduction

70%

Tooling Cost Savings

1,000+

Thermal Cycles Passed

55%

Weight Reduction

Case Summary

PA6 LGF40 FR delivers superior impact toughness, dimensional stability, and flame retardancy compared to short‑fiber and thermoset alternatives. This case demonstrates how long glass fiber technology enables thin‑wall, lightweight electrical enclosures that withstand harsh thermal and mechanical environments.

FAQ

Q: What makes LFT‑G^®PA6 LGF40 FR superior to standard flame retardant PA6 compounds?

A: The 3D long‑glass‑fiber network delivers far better creep resistance, impact toughness, and dimensional stability than short‑fiber FR PA6. It also achieves V‑0 at 0.8mm versus 1.6mm for standard grades, enabling thinner walls and reduced material usage while maintaining safety compliance.

Q: Is PA6 LGF40 FR suitable for outdoor electrical enclosures?

A: Yes. The material offers excellent UV stability and weathering resistance when properly formulated. Low moisture absorption maintains dimensional stability in humid environments, and the V‑0 flame rating meets UL 94 requirements for outdoor equipment. UV‑stabilized variants are available upon request.

Q: Can PA6 LGF40 FR replace thermoset materials in electrical applications?

A: Absolutely. PA6 LGF40 FR offers comparable flame retardancy and thermal performance to thermosets, with significantly faster cycle times and lower tooling costs. The long fiber reinforcement delivers mechanical performance approaching thermoset levels while enabling design flexibility and part consolidation through injection molding.

LFT team