Advanced Prepreg Manufacturing
High-tack, controlled resin-content carbon fiber prepregs designed for efficient lay-up and molding.
Ready-to-Mold Perfection
Pre-impregnated composite fibers (Prepregs) are the material of choice for high-end aerospace, automotive, and sports equipment manufacturing. At JiLin, we combine our precision-woven fabrics and wet-spun carbon fibers with premium resin systems to create prepregs that offer unparalleled handling characteristics and structural consistency.
The JiLin Prepreg Process:
Superior Resin Wettability
Because our wet-spun carbon fibers possess excellent interface properties and our fabrics are completely fuzz-free, they absorb resin rapidly and uniformly. This eliminates the risk of resin-starved areas (dry spots) in the final product.
Precise Resin Content Control
Our automated prepreg lines strictly control the resin-to-fiber ratio, weight, and thickness tolerances. This ensures predictable performance, minimal void content, and optimal strength-to-weight ratios for end-users.
Versatile Resin Compatibility
We formulate prepregs compatible with a wide range of matrix systems, including epoxy, phenolic, and advanced thermoplastic resins tailored for high-speed RTM (Resin Transfer Molding) processes.
JiLin Carbon
Prepreg Manufacturing
Streamlining Your Production
A carbon fiber prepreg combines reinforcement with a defined amount of resin before component lay-up. Its behavior depends on both the fiber construction and the resin formulation. Specify UD or woven reinforcement, fiber areal weight, resin content, width, tack and intended molding route. These details connect the purchased material to the laminate design and shop-floor handling requirements.
The documented portfolio includes epoxy systems with standard, rapid-cure, toughened and higher-temperature options, as well as other resin chemistries for specific applications. Select a named resin and prepreg grade against its current technical data sheet. Cure temperature, storage life and process compatibility cannot be assumed from the generic term epoxy prepreg.
Consult JiLin for Resin MatchingSelect a Cure Route Against the Actual Resin
JN1101 is documented as a standard 125°C-cure epoxy option used in molded and tubular sporting goods. JN1601 is a rapid-cure epoxy with documented reference schedules of 10 minutes at 150°C or 20 minutes at 130°C. These are resin-specific reference conditions, with part thickness, heat transfer and the actual molding route needing review.
A critical distinction is that the documented JN1601 system is not suitable for roll-tube or autoclave forming. A rapid cure label therefore does not mean universal process compatibility. For every selection, check the permitted molding method, the temperature reached inside the part, required pressure and any post-cure before releasing a production cycle.
Cold Storage, Out-Life and Safe Thawing
Keep frozen prepreg sealed while it returns to room temperature so condensation does not form on the reinforcement. Open the packaging only after temperature equalization and follow the selected material's handling instructions. Track time outside controlled storage because it consumes the available handling life.
The JN1101 reference storage guidance is one year at -18°C, while JN1601 is documented at six months at -18°C. Room-temperature limits also differ. These examples show why the resin and grade must be identified on the label and traveler; do not assign the longest published shelf life to a different formulation.
Qualification and Production Control
Check fiber areal weight, resin content, appearance and storage history against the purchase specification. During processing, record cutting, lay-up, debulking where required, cure conditions and inspection results. Tack and drape should support the geometry without replacing careful fiber alignment and consolidation.
Validate the selected prepreg through a representative laminate and, when needed, a prototype component. Tensile, compression, interlaminar and thermal properties must be interpreted using the test method and laminate construction. Supply the target Tg, service environment, cycle-time requirements and available equipment when requesting a material recommendation.
Quality Documentation
Request current certificate scope and validity, together with the batch documentation relevant to your selected material. Management-system certification does not replace product or application qualification.
Carbon Fiber Prepreg FAQ
What types of resin systems are available for your carbon fiber prepregs?
The documented portfolio includes epoxy carbon fiber prepregs with different reinforcement constructions and cure characteristics. Select the exact resin and fiber grade against its technical data sheet. If phenolic, thermoplastic or another matrix is required, ask the team to confirm the available specification and supporting qualification evidence.
How do you control the consistency of the resin content (RC) in your prepregs?
Resin content and fiber areal weight are controlled against the selected product specification. Review the grade-specific tolerances and batch data, and validate the material with your lay-up and cure process. Wet-out, resin flow and porosity also depend on storage, handling, debulking and curing; no process can be described as unconditionally eliminating dry spots.
Can you customize the tack (stickiness) and drape of the prepreg?
Tack and drape depend on resin formulation, temperature, reinforcement architecture and handling time. Discuss your tool geometry, lay-up method and required handling window with the team, then confirm a suitable grade through sample trials. Suitability for ATL or AFP must be established for the specific material and equipment.
Are your prepregs suitable for Out-of-Autoclave (OOA) curing processes?
Only selected resin systems are suitable for a particular autoclave, vacuum-bag or press-molding route. Confirm temperature, pressure and cure time from the exact technical data sheet. JN1601 is not recommended for autoclave or roll-tube processing. Qualification should address consolidation and measured porosity rather than a generic zero-void promise.
What is the shelf life of your carbon fiber prepreg, and how should it be stored?
Storage life and out-life are resin-specific. At -18°C, the documented JN1101 shelf life is one year, while JN1601 is six months. Follow the applicable technical data sheet, thaw sealed material before opening and track accumulated exposure. Confirm packaging and transport requirements for the selected grade before shipment.
What are the available roll widths and Minimum Order Quantities (MOQ)?
The documented standard portfolio includes 1000mm and 1200mm widths, with availability depending on the construction and grade. Confirm the exact roll width, slitting options, roll length and minimum order quantity with the quotation; there is no single MOQ or width that applies to every prepreg specification.
Does every rapid-cure prepreg work in an autoclave?
No. Compatibility is resin-specific, and the documented JN1601 system is not suitable for autoclave or roll-tube forming. Check the technical data sheet for the selected grade and the exact molding route.
Can I use the same cure cycle for different epoxy prepregs?
A cure cycle must be approved for the named resin and prepreg system. Part thickness, heating behavior, pressure and post-cure requirements can change the result, even when nominal oven temperatures are similar.
Why should frozen prepreg remain sealed during thawing?
Opening a cold package can allow moisture to condense on the material. Keep it sealed until it has equilibrated and follow the material's instructions before cutting or lay-up.
Is freezer shelf life the same as working out-life?
No. Shelf life describes storage under the stated conditions, while out-life relates to time spent outside those conditions. Track both for the actual resin system and lot.
What is the difference between fiber areal weight and resin content?
Fiber areal weight describes the reinforcement mass per unit area. Resin content describes the proportion of resin in the prepreg, so both are needed to specify the material and interpret laminate thickness and processing behavior.
What should I provide when requesting a prepreg recommendation?
Provide reinforcement architecture, target properties, service temperature, part geometry and your molding equipment. Include the permitted cure temperature, cycle-time target, storage conditions and expected order quantity.
Advanced Prepreg Manufacturing
High-tack, controlled resin-content carbon fiber prepregs designed for efficient lay-up and molding.
Ready-to-Mold Perfection
Pre-impregnated composite fibers (Prepregs) are the material of choice for high-end aerospace, automotive, and sports equipment manufacturing. At JiLin, we combine our precision-woven fabrics and wet-spun carbon fibers with premium resin systems to create prepregs that offer unparalleled handling characteristics and structural consistency.
The JiLin Prepreg Process:
Superior Resin Wettability
Because our wet-spun carbon fibers possess excellent interface properties and our fabrics are completely fuzz-free, they absorb resin rapidly and uniformly. This eliminates the risk of resin-starved areas (dry spots) in the final product.
Precise Resin Content Control
Our automated prepreg lines strictly control the resin-to-fiber ratio, weight, and thickness tolerances. This ensures predictable performance, minimal void content, and optimal strength-to-weight ratios for end-users.
Versatile Resin Compatibility
We formulate prepregs compatible with a wide range of matrix systems, including epoxy, phenolic, and advanced thermoplastic resins tailored for high-speed RTM (Resin Transfer Molding) processes.
JiLin Carbon
Prepreg Manufacturing
Streamlining Your Production
A carbon fiber prepreg combines reinforcement with a defined amount of resin before component lay-up. Its behavior depends on both the fiber construction and the resin formulation. Specify UD or woven reinforcement, fiber areal weight, resin content, width, tack and intended molding route. These details connect the purchased material to the laminate design and shop-floor handling requirements.
The documented portfolio includes epoxy systems with standard, rapid-cure, toughened and higher-temperature options, as well as other resin chemistries for specific applications. Select a named resin and prepreg grade against its current technical data sheet. Cure temperature, storage life and process compatibility cannot be assumed from the generic term epoxy prepreg.
Consult JiLin for Resin MatchingSelect a Cure Route Against the Actual Resin
JN1101 is documented as a standard 125°C-cure epoxy option used in molded and tubular sporting goods. JN1601 is a rapid-cure epoxy with documented reference schedules of 10 minutes at 150°C or 20 minutes at 130°C. These are resin-specific reference conditions, with part thickness, heat transfer and the actual molding route needing review.
A critical distinction is that the documented JN1601 system is not suitable for roll-tube or autoclave forming. A rapid cure label therefore does not mean universal process compatibility. For every selection, check the permitted molding method, the temperature reached inside the part, required pressure and any post-cure before releasing a production cycle.
Cold Storage, Out-Life and Safe Thawing
Keep frozen prepreg sealed while it returns to room temperature so condensation does not form on the reinforcement. Open the packaging only after temperature equalization and follow the selected material's handling instructions. Track time outside controlled storage because it consumes the available handling life.
The JN1101 reference storage guidance is one year at -18°C, while JN1601 is documented at six months at -18°C. Room-temperature limits also differ. These examples show why the resin and grade must be identified on the label and traveler; do not assign the longest published shelf life to a different formulation.
Qualification and Production Control
Check fiber areal weight, resin content, appearance and storage history against the purchase specification. During processing, record cutting, lay-up, debulking where required, cure conditions and inspection results. Tack and drape should support the geometry without replacing careful fiber alignment and consolidation.
Validate the selected prepreg through a representative laminate and, when needed, a prototype component. Tensile, compression, interlaminar and thermal properties must be interpreted using the test method and laminate construction. Supply the target Tg, service environment, cycle-time requirements and available equipment when requesting a material recommendation.
Quality Documentation
Request current certificate scope and validity, together with the batch documentation relevant to your selected material. Management-system certification does not replace product or application qualification.
Carbon Fiber Prepreg FAQ
What types of resin systems are available for your carbon fiber prepregs?
The documented portfolio includes epoxy carbon fiber prepregs with different reinforcement constructions and cure characteristics. Select the exact resin and fiber grade against its technical data sheet. If phenolic, thermoplastic or another matrix is required, ask the team to confirm the available specification and supporting qualification evidence.
How do you control the consistency of the resin content (RC) in your prepregs?
Resin content and fiber areal weight are controlled against the selected product specification. Review the grade-specific tolerances and batch data, and validate the material with your lay-up and cure process. Wet-out, resin flow and porosity also depend on storage, handling, debulking and curing; no process can be described as unconditionally eliminating dry spots.
Can you customize the tack (stickiness) and drape of the prepreg?
Tack and drape depend on resin formulation, temperature, reinforcement architecture and handling time. Discuss your tool geometry, lay-up method and required handling window with the team, then confirm a suitable grade through sample trials. Suitability for ATL or AFP must be established for the specific material and equipment.
Are your prepregs suitable for Out-of-Autoclave (OOA) curing processes?
Only selected resin systems are suitable for a particular autoclave, vacuum-bag or press-molding route. Confirm temperature, pressure and cure time from the exact technical data sheet. JN1601 is not recommended for autoclave or roll-tube processing. Qualification should address consolidation and measured porosity rather than a generic zero-void promise.
What is the shelf life of your carbon fiber prepreg, and how should it be stored?
Storage life and out-life are resin-specific. At -18°C, the documented JN1101 shelf life is one year, while JN1601 is six months. Follow the applicable technical data sheet, thaw sealed material before opening and track accumulated exposure. Confirm packaging and transport requirements for the selected grade before shipment.
What are the available roll widths and Minimum Order Quantities (MOQ)?
The documented standard portfolio includes 1000mm and 1200mm widths, with availability depending on the construction and grade. Confirm the exact roll width, slitting options, roll length and minimum order quantity with the quotation; there is no single MOQ or width that applies to every prepreg specification.
Does every rapid-cure prepreg work in an autoclave?
No. Compatibility is resin-specific, and the documented JN1601 system is not suitable for autoclave or roll-tube forming. Check the technical data sheet for the selected grade and the exact molding route.
Can I use the same cure cycle for different epoxy prepregs?
A cure cycle must be approved for the named resin and prepreg system. Part thickness, heating behavior, pressure and post-cure requirements can change the result, even when nominal oven temperatures are similar.
Why should frozen prepreg remain sealed during thawing?
Opening a cold package can allow moisture to condense on the material. Keep it sealed until it has equilibrated and follow the material's instructions before cutting or lay-up.
Is freezer shelf life the same as working out-life?
No. Shelf life describes storage under the stated conditions, while out-life relates to time spent outside those conditions. Track both for the actual resin system and lot.
What is the difference between fiber areal weight and resin content?
Fiber areal weight describes the reinforcement mass per unit area. Resin content describes the proportion of resin in the prepreg, so both are needed to specify the material and interpret laminate thickness and processing behavior.
What should I provide when requesting a prepreg recommendation?
Provide reinforcement architecture, target properties, service temperature, part geometry and your molding equipment. Include the permitted cure temperature, cycle-time target, storage conditions and expected order quantity.
