LFT-G® TPU GF40 (LGF40) – Hydrolysis-Resistant Structural Elastomer

LFT-G® TPU GF40 (LGF40) – Hydrolysis-Resistant Structural Elastomer

Details
LFT-G® TPU GF40 (Model: TPU GF40-NG04M) bridges the impossible gap between rigid plastics and flexible rubber. By reinforcing a premium Polyether TPU matrix with 40% continuous Long Glass Fiber (LGF), we deliver a structural composite that flexes under extreme shock but never shatters.
√Structural Elasticity
√100% Hydrolysis Resistant
√Extreme Abrasion Tolerance
√-40°C Cold Flexibility
Category
TPU LGF Compound
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Description
Technical Parameters

LFT-G® TPU 40%Long Glass Fiber– Structural Elastomer

TPU GF40 LGF40 Polyether Grade Long Glass Fiber Pellets

 Core Advantages:

Standard Polyester-based TPU GF40 degrades rapidly in wet conditions. Our exclusive TPU Polyether-based  with 40%Long Glass fiber technology is chemically immune to hydrolysis, microbial attack, and sub-zero temperatures, making it the definitive choice for heavy-duty industrial and outdoor applications.

  • ● Rigid-Tough Balance: 11,500 MPa stiffness combined with elastomeric impact absorption.
  • Absolute Hydrolysis Immunity: Survives boiling water and humid environments without degrading.
  • Extreme Abrasion Resistance: Radically outperforms standard nylon in high-friction wear parts.
  • Sub-Zero Durability: Maintains outstanding dynamic toughness down to -40°C.
 

The Survival Matrix: Polyether vs. Polyester

Engineers often specify generic "TPU" and experience catastrophic field failures. See why upgrading to LFT-G® Polyether LGF40 eliminates environmental risks.

Standard Polyester SGF40
(The Competitor)

❌ Wet Environments: Hydrolyzes; molecular chains rot and crumble in water.

❌ Cold Climates: Becomes dangerously brittle below 0°C.

❌ Impact Load: Short fibers crack under repetitive industrial shock.

⚠️
LFT-G® Polyether LGF40
(Model: NG04M)

✅ Wet Environments: 100% chemically immune to hydrolysis and microbial decay.

✅ Cold Climates: Retains high elasticity and impact strength at -40°C.

✅ Impact Load: 10mm continuous fiber skeleton absorbs massive shock energy.

🛡️

Typical Material Properties (NG04M)

The following values are typical data for LFT-G® TPU-LGF40 (Polyether Grade) and are for reference only. Data is for Dry-As-Molded (DAM) state. Please contact us for the official Technical Data Sheet (TDS).

Mechanical Properties

Property Test Method Value
Tensile Strength ISO 527 238MPa
Flexural Modulus ISO 178 12189 MPa
Tensile Strain at Break ISO 527 1.5 - 2.5 %
Notched Izod Impact (23°C) ISO 180/A 43 - 45 kJ/m²
Notched Izod Impact (-40°C) ISO 180/A 38 kJ/m²

 

Thermal & Physical Properties

Property Test Method Value
Density ISO 1183 1.51 g/cm³
Hardness ISO 868 78 - 82 Shore D
HDT (0.45 MPa) ISO 75 99 °C
Hydrolysis Resistance Internal

Excellent

Mold Shrinkage ISO 294-4 0.1 - 0.2 %

 

 

 

Processing Information

The following values are recommendations. We strongly recommend desiccant / dry air dryers to ensure TPU moisture content is < 0.02% before molding. To minimize fiber breakage, use a low-compression screw and generous gating.

Parameter Recommendation
Drying Temperature 88 - 100 °C
Drying Time 4 - 5hours
Feed Section (Zone ①) 210 - 220 °C
Melt Temperature (Zone ②) 230 - 270 °C
Mold Temperature (Nozzle ③) 60 - 90°C
Injection Speed Slow to Moderate

Injection molding Process info for LFT-G Materials

 

Multi-Industry Hyper-Performance

Winter sport ski shoes cover LFT TPU LGF40 GF40

Winter Sports & Ski Boots

Ski boot shells require massive stiffness for power transfer but must not shatter upon impact. Polyether TPU LGF40 retains its extraordinary elastomeric toughness and impact resistance even at -40°C, outperforming stiff but brittle nylons in freezing mountain conditions.

Heavy Duty Industrial Wheels Rollers TPU LGF

 

Heavy-Duty Industrial Wheels

Warehouse rollers and gears face constant abrasion and heavy static loads. The 40% long glass fiber locks the TPU matrix to prevent creep (flat-spotting under weight), while the TPU surface provides incredible wear resistance that lasts 3X longer than traditional rubber or standard plastics.

Marine Pump Impeller TPU LGF40 Hydrolysis

Marine & Offshore Equipment

Sub-sea connectors and boat impellers are constantly submerged. Because our Polyether TPU LGF40 is 100% immune to hydrolysis, it will not rot, swell, or lose mechanical strength in seawater, solving the fatal flaw of standard polyester-based elastomers.

Frequently Asked Questions (FAQ)

Q: What is the exact difference between Polyether and Polyester TPU LGF40?

A: The critical difference is environmental survival. Polyester TPU is slightly stiffer but breaks down chemically when exposed to water (hydrolysis). Our Polyether TPU (NG04M) is highly resistant to water, microbes, and freezing temperatures, making it the only choice for outdoor or submerged applications.

Q: Does TPU LGF40 require special drying before injection molding?

A: Yes, absolutely. TPU is highly hygroscopic in its raw pellet form. If molded with moisture, the water will turn to steam and degrade the polymer during injection. You must use a desiccant dryer at 100°C for 3-4 hours to ensure moisture content is below 0.02% prior to processing.

Q: Why use Long Glass Fiber in an Elastomer (TPU) instead of Nylon?

A: Nylon (PA6) is rigid but can shatter under heavy impact and absorbs moisture. TPU LGF40 offers a unique "Rigid-Tough" paradox. The 40% long glass skeleton provides massive load-bearing stiffness (9,500 MPa), while the TPU matrix acts as a rubbery shock-absorber that simply refuses to crack or wear down.

LFT-G Hydrolysis Resistant TPU Need Rigid Toughness that Survives Water?

Stop dealing with hydrolysis and brittle fractures. Contact the LFT-G® engineering team for material selection and polyether TPU validation.

Request TPU LGF40 Quote

 

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