Fluorine-Free LFT Fiberglass Direct Roving for PP,PE & PA Thermoplastic Composites

        Fluorine-Free LFT Fiberglass Direct Roving is a continuous glass fiber reinforcement developed for long fiber reinforced thermoplastic composites and thermoplastic tape manufacturing. With a current linear density range of 600–2400 tex,the product family includes grades designed for PP,PE,and PA resin systems,providing manufacturers with application-specific reinforcement options for automotive components,household appliances,mechanical tools,sports equipment,and industrial thermoplastic composite parts.The current J860,J859,and J801 grades use fluorine-free and boron-free glass fiber with silane-based surface treatment. J860 is designed for PP-based LFT processing,J859 supports PP and PE for LFT and prepreg tape applications,and J801 is designed for PA-based pre-immersed tape applications. J859 is specifically positioned as a low-odor grade.For LFT compounders,thermoplastic composite manufacturers,automotive suppliers,and continuous thermoplastic tape producers,this product range provides dedicated fiberglass reinforcement for long-fiber thermoplastic processing rather than conventional thermoset FRP applications.

LFT Fiberglass Direct Roving Specifications

Key Advantages of LFT Fiberglass Direct Roving

1. Designed for Long Fiber Reinforced Thermoplastics

This product family is specifically developed for thermoplastic composite processing.

Unlike fiberglass roving intended primarily for polyester,vinyl ester,or epoxy thermoset systems,LFT roving must interact effectively with molten thermoplastic matrices while maintaining suitable fiber integrity during impregnation and downstream processing.

Potential manufacturing routes include:

• LFT processing

• Thermoplastic impregnation

• Prepreg tape production

• Pre-immersed tape production

• Long-fiber thermoplastic compounding

• Thermoplastic composite molding

2. Fluorine-Free & Boron-Free Glass Fiber

The current product uses a fluorine-free and boron-free glass formulation.

This provides manufacturers with a clearly defined glass composition for thermoplastic composite reinforcement.

Any specific environmental or regulatory claim should be supported by the applicable test report or compliance documentation.

3. 600–2400 Tex Linear Density Range

The current product family covers approximately 600–2400 tex.

This allows manufacturers to select roving according to:

• Production equipment

• Fiber feeding system

• Thermoplastic matrix

• Target fiber content

• Impregnation process

• Tape construction

• Production speed

• Finished component requirements

4. Controlled Linear Density

The current specification lists a linear-density tolerance of approximately ±5%.

Stable tex can help maintain more consistent:

• Glass-fiber throughput

• Reinforcement content

• Fiber feeding

• Impregnation

• Production control

• Finished composite consistency

5. Silane-Based Surface Treatment

The current roving uses a silane-based coupling agent together with an application-specific sizing system.

The fiber surface treatment is important because the glass fiber must interact with the selected thermoplastic matrix.

Proper interface design can contribute to effective stress transfer between the glass reinforcement and polymer matrix.

6. PP-Compatible LFT Roving

J860 is specifically designed for PP-based LFT processing.

J859 also lists compatibility with PP.

This provides multiple product options for polypropylene long-fiber thermoplastic applications.

Potential products include:

• Automotive structural parts

• Automotive semi-structural parts

• Appliance components

• Tool housings

• Industrial molded components

• Transportation components

7. PE-Compatible Roving Option

J859 lists compatibility with both PP and PE.

This makes J859 particularly relevant for manufacturers developing long-fiber or tape-reinforced polyethylene composite systems.

Actual compatibility should be confirmed using the customer's specific PE grade and manufacturing process.

8. PA-Compatible Roving Option

J801 is specifically designed for PA thermoplastic systems.

Polyamide-based glass fiber composites are widely considered for engineering applications where manufacturers require a combination of mechanical performance,temperature capability,and thermoplastic processability.

The exact PA grade should be confirmed during product qualification.

9. Low-Odor J859 Grade

J859 is specifically identified as the low-odor grade within the current product family.

This makes it particularly relevant for applications where manufacturers want to reduce odor associated with the fiberglass sizing system during thermoplastic processing.

Low odor should not be interpreted as completely odor-free manufacturing because total process odor can also be influenced by:

• Polymer matrix

• Processing temperature

• Additives

• Lubricants

• Processing aids

• Recycled polymer content

• Thermal degradation

10. Good Fiber Dispersibility

The source product positioning emphasizes good fiber dispersibility during thermoplastic processing.

Controlled fiber dispersion is important because long-fiber composites need effective reinforcement distribution while avoiding excessive fiber damage.

Actual dispersion depends on the complete processing system.

11. Designed for Low Fiber Filament Generation

The product is designed to minimize excessive filament generation during processing.

This can support cleaner fiber feeding and more stable continuous production.

Actual fuzz and filament generation depend on:

• Guide condition

• Fiber tension

• Equipment design

• Processing speed

• Roving path

• Workshop conditions

12. Suitable for Automotive Thermoplastic Composites

Automotive components are one of the main target markets for LFT materials.

Potential applications include:

• Structural components

• Semi-structural components

• Seat-related structures

• Interior support components

• Underbody components

• Front-end structures

• Battery-related housings

• Application-specific molded parts

The exact application depends on the thermoplastic matrix,glass content,component design,and required automotive specifications.

13. Suitable for Household Appliances

Long-fiber thermoplastic composites can also be used in appliance components requiring a balance of stiffness,impact resistance,dimensional stability,and production efficiency.

Potential applications include:

• Appliance structural components

• Equipment housings

• Internal support structures

• Functional molded components

14. Suitable for Mechanical Tools

Glass fiber reinforced thermoplastics can be used for selected mechanical and power-tool components.

Potential products include:

• Tool housings

• Structural shells

• Equipment handles

• Internal support components

• Industrial molded parts

15. Suitable for Sports Equipment

Long-fiber thermoplastic reinforcement can also be considered for sports and recreational products where lightweight structural performance and thermoplastic processing are required.

Technical Grades of LFT Fiberglass Direct Roving

J860 PP LFT Fiberglass Direct Roving

J860 is specifically designed for polypropylene-based long fiber reinforced thermoplastic processing.

Linear Density: 600–2400 tex

Tolerance: ±5%

Compatible Resin: PP

Primary Process: LFT

Potential applications include:

• Automotive components

• Industrial molded parts

• Appliance structures

• Mechanical components

• Long-fiber PP composites

The current product information also identifies J860 with RoHS-related test documentation. Where RoHS compliance is a purchasing requirement,the applicable report,scope,and current validity should be confirmed before shipment.

J859 Low-Odor PP/PE LFT Direct Roving

J859 is the most important low-odor grade in this product family.

Linear Density: 600–2400 tex

Tolerance: ±5%

Compatible Resins: PP / PE

Processes: LFT / Prepreg Tape

Special Positioning: Low Odor

J859 can be considered for manufacturers requiring PP or PE thermoplastic reinforcement combined with reduced sizing-related odor during processing.

It is also suitable for selected continuous thermoplastic tape manufacturing processes.

J801 PA-Compatible Fiberglass Roving

J801 is designed for polyamide thermoplastic systems.

Linear Density: 600–2400 tex

Tolerance: ±5%

Compatible Resin: PA

Primary Process: Pre-Immersed Tape

Potential applications include engineering thermoplastic composite structures and continuous PA-based reinforced tape products.

J860 vs. J859 vs. J801

The three grades should not be treated simply as higher and lower performance versions of the same product. Their main differentiation is thermoplastic resin compatibility and processing route.

Fiberglass Direct Roving for Long Fiber Reinforced Thermoplastics

LFT composites combine thermoplastic resin with relatively long reinforcing fibers to improve structural performance compared with unreinforced polymers and many conventional short-fiber compounds.

Glass fiber reinforcement can contribute to:

• Composite stiffness

• Structural strength

• Dimensional stability

• Load-bearing capability

• Component reinforcement

The final performance depends on fiber length,glass content,polymer matrix,interface quality,processing conditions,and component design.

How LFT Processing Works

A typical LFT manufacturing route may include:

1. Fiberglass roving unwinding

2. Controlled fiber feeding

3. Thermoplastic resin preparation

4. Fiber impregnation

5. Polymer-fiber combination

6. Long-fiber compound or charge formation

7. Molding or downstream processing

8. Cooling

9. Trimming

10. Finished-component inspection

The exact process depends on whether the manufacturer uses direct LFT,granule-based LFT,continuous tape,or another thermoplastic composite technology.

Why Fiber Length Matters in LFT Composites

The purpose of LFT technology is to preserve useful reinforcement length within the finished thermoplastic composite.

Excessive fiber breakage during processing can reduce the effective reinforcement length.

Important factors include:

• Original roving quality

• Impregnation method

• Screw and mixing design

• Processing shear

• Molding process

• Component geometry

• Recycling or reprocessing cycles

Therefore,good roving processability should be considered together with the complete manufacturing line.

LFT Roving for Polypropylene Composites

PP is one of the main matrices used with the current product family.

Both J860 and J859 list PP compatibility.

Long-glass-fiber reinforced PP can be considered for:

• Automotive components

• Appliance parts

• Industrial housings

• Structural molded parts

• Transportation components

• Mechanical products

The actual mechanical properties depend strongly on glass content,residual fiber length,PP grade,and molding conditions.

LFT Roving for Polyethylene Composites

J859 provides the current PE-compatible option.

PE-based reinforced thermoplastics may be selected for application-specific components where polyethylene processing characteristics are required.

Because polyethylene grades vary considerably,the exact matrix and processing conditions should be evaluated before mass production.

Fiberglass Roving for Polyamide Composites

J801 is the current PA-compatible grade.

PA reinforced with continuous or long glass fiber can be considered for engineering thermoplastic applications requiring enhanced structural properties compared with unreinforced polyamide.

Important considerations include:

• PA grade

• Moisture conditioning

• Processing temperature

• Fiber-matrix interface

• Glass content

• Finished fiber length

• Component geometry

PP vs. PE vs. PA Fiberglass Roving Selection

LFT Fiberglass Roving for Automotive Components

Automotive manufacturing is one of the most important application areas for long-fiber thermoplastics.

LFT materials can be considered where manufacturers seek:

• Weight reduction

• Part integration

• Structural reinforcement

• Thermoplastic moldability

• Production efficiency

• Recyclability potential associated with thermoplastic matrices

Potential applications include:

• Front-end structures

• Seat structures

• Interior supports

• Underbody components

• Door-related components

• Equipment housings

• Battery-system components

• Structural and semi-structural molded parts

The exact application must meet the required mechanical,thermal,flammability,impact,and automotive qualification requirements.

LFT Fiberglass Roving for Household Appliances

Glass fiber reinforced thermoplastics can be used in functional appliance components where improved stiffness and dimensional stability are required.

Potential applications include:

• Washing machine components

• Appliance structural frames

• Internal brackets

• Equipment housings

• Functional molded components

LFT Fiberglass Roving for Mechanical Tools

Potential mechanical and tool applications include:

• Power-tool housings

• Structural handles

• Equipment frames

• Industrial machine components

• Reinforced molded shells

Material selection should consider impact requirements,service temperature,chemical exposure,and component geometry.

LFT Fiberglass Roving for Sports Goods

Long-fiber thermoplastic composites can also be used in selected sporting and recreational products.

Potential advantages include thermoplastic processability,reinforcement efficiency,and lightweight component design.

Actual suitability depends on the required impact,fatigue,temperature,and structural performance.

LFT Direct Roving vs. Thermoset Direct Roving

LFT Direct Roving vs. Chopping Roving

LFT Direct Roving vs. Epoxy Winding Roving

Understanding 600–2400 Tex LFT Roving

Tex represents the linear density of the fiberglass roving.

1 tex = 1 gram per 1,000 meters.

Therefore:

600 tex = approximately 600 grams per 1,000 meters

1200 tex = approximately 1200 grams per 1,000 meters

2400 tex = approximately 2400 grams per 1,000 meters

Higher tex means more glass mass per unit length.

It does not automatically mean better mechanical performance.

The appropriate tex depends on:

• Feeding equipment

• Impregnation system

• Target glass content

• Production speed

• Thermoplastic matrix

• Tape width

• Finished product

• Processing configuration

600 Tex vs. 1200 Tex vs. 2400 Tex LFT Roving

Why Fiber-Matrix Interface Matters

Glass fiber and thermoplastic resin are different material systems.

The sizing and coupling-agent system helps create an effective interface between the fiber surface and polymer matrix.

Interface quality can influence:

• Load transfer

• Composite strength

• Fiber pull-out

• Impact behavior

• Fatigue behavior

• Moisture performance

• Surface appearance

Final results must be evaluated on the manufactured composite rather than the dry roving alone.

Why Processing Temperature Matters

Thermoplastic processing generally requires the polymer to be heated until it can flow and impregnate or combine with the reinforcement.

The correct temperature depends primarily on the polymer matrix.

PP,PE,and PA have different processing windows.

Excessive processing temperature may contribute to:

• Polymer degradation

• Odor

• Discoloration

• Additive degradation

• Reduced material performance

Insufficient temperature may lead to poor polymer flow and inadequate fiber impregnation.

Low-Odor LFT Processing Considerations

J859 is specifically positioned as a low-odor roving.

However,total processing odor is determined by the entire manufacturing system.

Potential odor sources include:

• Thermoplastic polymer

• Fiber sizing

• Polymer additives

• Processing aids

• Recycled content

• Excessive processing temperature

• Thermal degradation

• Machine contamination

Therefore,J859 should be described as a low-odor fiberglass roving option,not as a guarantee of odor-free LFT manufacturing.

RoHS Considerations for J860

The current product information identifies J860 as having RoHS-related test documentation.

For buyers requiring RoHS compliance,the following should be confirmed before commercial qualification:

• Current test report

• Tested product grade

• Applicable restricted substances

• Test method

• Report date

• Product batch or product-family coverage

This is especially important when the finished component is supplied into regulated electrical,electronic,or automotive markets.

How to Choose LFT Fiberglass Direct Roving

Selection Guide by Resin & Process

Custom LFT Fiberglass Roving Options

Quality Control

Consistent fiberglass roving quality is important for thermoplastic composite manufacturing.

Important control items include:

• Glass composition

• Linear density

• Tex tolerance

• Surface treatment

• Sizing consistency

• Roving integrity

• Fiber dispersion

• Fuzz and filament generation

• Unwinding behavior

• Thermoplastic compatibility

• Package condition

• Moisture protection

• Batch identification

• Packaging integrity

For new resin systems or processing lines,a production trial should be completed before full-scale manufacturing.

Packaging & Shipping

Storage Guidelines

1. Storage Environment

Store LFT fiberglass direct roving in a dry,well-ventilated,and rain-protected indoor warehouse.

2. Recommended Storage Temperature

The current recommended storage temperature is:

5°C to 35°C

3. Recommended Relative Humidity

The current recommended relative humidity is:

35%–65% RH

4. Keep Original Packaging Sealed

Keep the roving in its original unopened packaging until it is required for production.

This helps protect against moisture,dust,and contamination.

5. Avoid Direct Sunlight & Heat

Keep the product away from direct sunlight,strong heat sources,and excessive moisture.

6. Recommended Shelf Life

For best processing performance,the current recommendation is to use the material within approximately 12 months from the production date.

7. Pallet Storage

Pallets should be placed on a clean,flat surface and isolated from direct floor moisture.

8. Avoid Heavy Loads

Do not place heavy objects on top of roving pallets because excessive loading may deform the packages.

9. Pallet Stacking

The current recommendation is a maximum of approximately 2 pallets high.

Frequently Asked Questions About LFT Fiberglass Direct Roving

1. What is LFT fiberglass direct roving?

LFT fiberglass direct roving is continuous glass fiber reinforcement designed for long fiber reinforced thermoplastic processing.

It is used to introduce long glass fibers into thermoplastic matrices such as PP,PE,and PA.

2. What does LFT mean?

LFT stands for Long Fiber Reinforced Thermoplastic.

The technology uses relatively long reinforcing fibers inside a thermoplastic polymer matrix.

3. Which grades are currently available?

The current grades are J860,J859,and J801.

4. What is the available linear-density range?

The current product range is approximately 600–2400 tex.

5. What is the linear-density tolerance?

The current specification lists approximately ±5%.

6. Which grade is suitable for polypropylene?

Both J860 and J859 currently list PP compatibility.

7. Which grade is suitable for polyethylene?

J859 currently lists PE compatibility.

8. Which grade is suitable for polyamide?

J801 currently lists PA compatibility.

9. Which grade is designed for LFT processing?

J860 and J859 are currently listed for LFT processing.

10. Which grade is low odor?

J859 is specifically identified as the low-odor grade.

11. Are J860 and J801 also low odor?

The current public specification does not specifically identify J860 or J801 as low-odor grades.

Therefore,the low-odor claim should not automatically be applied to them.

12. Does low odor mean odor-free processing?

No.

J859 is designed to reduce sizing-related odor,but total manufacturing odor can also come from the thermoplastic matrix,additives,processing temperature,and other materials.

13. Can J859 be used for thermoplastic prepreg tape?

Yes.

The current specification lists J859 for LFT and prepreg tape processes.

14. Can J801 be used for PA tape?

Yes.

J801 is currently listed for PA-compatible pre-immersed tape applications.

15. Can this fiberglass roving be used for automotive components?

Yes.

Automotive components and structural parts are among the primary application areas listed for this product family.

16. Can it be used for household appliances?

Yes.

Household appliance functional components are one of the listed applications.

17. Can it be used for mechanical tools?

Yes.

The product can be evaluated for reinforced thermoplastic tool and equipment components.

18. Can it be used for sports equipment?

Yes.

Sports goods and equipment are included among the intended application areas.

19. What surface treatment is used?

The current product information specifies a silane-based coupling agent with application-specific sizing.

20. Why is the sizing important for thermoplastic composites?

The sizing helps protect the glass fibers during processing and influences interaction between the fiber surface and thermoplastic matrix.

21. Is 2400 tex stronger than 600 tex?

Not automatically.

2400 tex contains more glass mass per unit length,but final composite strength depends on total glass content,residual fiber length,polymer matrix,interface quality,and component design.

22. Can LFT roving be replaced with ordinary pultrusion roving?

It is not recommended without validation.

Pultrusion roving and LFT roving are designed for different matrix chemistries and manufacturing processes.

23. Can LFT roving be used with epoxy resin?

This product family is specifically positioned for thermoplastic PP,PE,and PA systems.

For epoxy applications,an epoxy-compatible fiberglass roving should be selected.

24. Is J860 RoHS compliant?

The current product information identifies J860 with RoHS-related test documentation. Buyers requiring formal compliance should confirm the applicable current report and its scope before qualification.

25. How should LFT fiberglass roving be stored?

Current recommendations are approximately 5°C to 35°C and 35%–65% RH in a dry indoor environment.

26. What is the recommended shelf life?

The current recommendation is to use the product within approximately 12 months from production for best processing performance.

27. How many spools can be packed on one pallet?

The current packaging information lists approximately 48 or 64 spools per pallet depending on packaging configuration.

28. How high can pallets be stacked?

The current recommendation is a maximum of approximately 2 pallets high.

29. Can packaging be customized?

Yes.

Spool weight and packaging configuration can be customized according to order and transportation requirements.

30. What information should I provide for a quotation?

Please provide:

• Thermoplastic resin

• J860/J859/J801 if already selected

• Required tex

• LFT or tape process

• Low-odor requirement

• Finished product

• Target glass content if known

• Required quantity

• Spool or packaging requirement

• Destination country or port

Why Choose WGSC Composite?

WGSC Composite supplies fiberglass roving,fiberglass fabrics,chopped strand mats,carbon fiber materials,and other composite reinforcement products for thermoset and thermoplastic composite manufacturing.

The J860,J859,and J801 LFT fiberglass roving family covers PP,PE,and PA thermoplastic applications with current linear densities from 600–2400 tex. J859 provides a dedicated low-odor option for PP/PE applications,while J860 focuses on PP-based LFT processing and J801 provides a PA-compatible option for thermoplastic tape applications.

For LFT compounders,automotive component manufacturers,thermoplastic tape producers,appliance manufacturers,and industrial composite factories,we can evaluate resin compatibility,roving grade,tex,processing requirements,packaging,and application-specific requirements.

Whether you are sourcing LFT fiberglass direct roving,fiberglass roving for PP composites,low-odor fiberglass roving for thermoplastics,PP/PE fiberglass roving,PA fiberglass roving,2400 tex LFT roving,or J859 low-odor direct roving,we can provide specification and quotation support according to your manufacturing process.

Request a Quote

Looking for LFT fiberglass direct roving for PP,PE,PA,automotive components,or thermoplastic tape manufacturing?

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Thermoplastic Resin · Roving Grade · Tex · LFT/Tape Process · Low-Odor Requirement · Finished Product · Glass Content · Quantity · Packaging · Destination

Contact WGSC Composite for J860,J859,J801,and application-specific LFT fiberglass direct roving requirements.