JLON supplies high-temperature nylon (PA) vacuum bagging films for aerospace composites, carbon fiber prepregs, advanced composite tooling and other elevated-temperature curing processes.
Our high-temperature series includes NL204 (204°C), NL230 (230°C) and NL250 (246°C). These three grades offer different maximum service temperature ratings, helping composite manufacturers select suitable vacuum bagging materials according to resin chemistry, curing temperature and processing conditions.
Available in flat sheet and tubular formats, JLON nylon vacuum bagging films combine controlled thickness, specified tensile strength of at least 60 MPa and practical roll configurations for demanding composite manufacturing operations.
Selected grades are available in widths up to 7 meters, helping reduce the number of film seams when covering large composite molds.

JLON offers three nylon vacuum bagging film grades with maximum rated service temperatures of 204°C, 230°C and 246°C.
This allows composite manufacturers to compare thermal ratings and select a suitable film for different prepreg, oven-curing and autoclave-processing requirements.
The appropriate grade must be selected according to the complete curing cycle rather than the maximum temperature alone.
NL204, NL230 and NL250 all have specified tensile strength of at least 60 MPa.
Mechanical strength is important during bag installation and handling, particularly around mold corners, laminate edges and complex component geometries.
Elongation characteristics vary by grade and should be checked against the relevant technical datasheet.
Selected JLON high-temperature nylon films are available in regular widths up to 7 meters.
Wide film formats help reduce the number of seams required for large composite components, simplifying bag preparation and potentially reducing leakage points.
Additional custom configurations may be available according to production requirements.
JLON supplies flat sheet film, tubular film and narrow tubular film in selected grades.
Flat sheet film provides flexibility for conventional mold covering, while tubular formats may be useful for suitable elongated or narrow composite components.
Customers should confirm the required film-width measurement method when ordering tubular configurations.
The nylon bagging film series includes reference thickness specifications of 50 ±3 μm for NL204 and NL230 and 75 ±3 μm for NL250.
Additional stock thicknesses are available for selected grades.
The applicable thickness tolerance for each ordered configuration should be confirmed against its corresponding specification.
JLON supplies more than high-temperature nylon vacuum bagging film.
Our composite processing product range includes release films, peel ply, breather fabrics, sealant tapes, fiberglass reinforcements, carbon fiber fabrics and other vacuum bagging consumables.
Customers can coordinate the sourcing of multiple composite manufacturing materials through one supplier.
Property | NL204 | NL230 | NL250 |
Material | Nylon (PA) | Nylon (PA) | Nylon (PA) |
Maximum rated service temperature | 204°C | 230°C | 246°C |
Specified short-term temperature | 215°C | 250°C | Not specified |
Temperature range | -50 to 204°C | -50 to 230°C | -50 to 246°C |
Reference thickness | 50 ±3 μm | 50 ±3 μm | 75 ±3 μm |
Tensile strength (MD/TD) | ≥60 MPa | ≥60 MPa | ≥60 MPa |
Elongation at break | ≥350% | ≥30%* | ≥350% |
Heat-seal temperature range | 180–220°C | 220–250°C | 180–220°C |
Oxygen transmission rate | ≤15 cm³/(m²·day·0.1 MPa) | ≤15 | ≤15 |
Technical Notes
The temperature values above represent the specified ratings of each nylon film grade. They should not be interpreted as unrestricted continuous-use temperatures.
Actual film suitability depends on curing duration, autoclave pressure, heating rate, resin compatibility, film thickness and sealing conditions.
The reference thicknesses shown above do not represent every available stock configuration.
The NL230 elongation value of ≥30% is reproduced from the supplied specifications and requires confirmation against the latest technical datasheet before publication.
NL204 is a high-temperature nylon vacuum bagging film with a maximum rated service temperature of 204°C and a specified short-term temperature rating of 215°C.
It provides tensile strength of at least 60 MPa and elongation at break of at least 350%, combining mechanical strength and flexibility for suitable composite bagging operations.
NL204 is available in 50, 65 and 75 μm stock thicknesses, with a wide selection of flat sheet and tubular configurations.
The grade can be evaluated for carbon fiber prepreg processing, elevated-temperature oven curing, out-of-autoclave manufacturing and selected aerospace composite applications.
Carbon Fiber Prepreg Components
NL204 can be used in compatible carbon fiber prepreg manufacturing processes requiring elevated-temperature vacuum bagging.
Aerospace Composite Manufacturing
The film can be evaluated for selected aerospace composite curing operations, subject to process compatibility and any required material qualifications.
Elevated-Temperature Oven Curing
NL204 provides a temperature-rated option for suitable composite systems cured in industrial ovens.
Out-of-Autoclave Composite Processing
The film may be used in compatible vacuum-assisted prepreg curing processes that do not require conventional external autoclave pressure.
Composite Tooling
NL204 can also be considered for selected composite molds and tooling components requiring elevated-temperature processing.
NL230 is designed for composite processing operations requiring a higher temperature rating than NL204.
With a maximum rated service temperature of 230°C and a specified short-term temperature rating of 250°C, NL230 can be evaluated for demanding prepreg and autoclave curing cycles.
The film has specified tensile strength of at least 60 MPa and is supplied in selected 50 and 75 μm stock configurations.
Regular supply includes green and blue film options, with both flat sheet and tubular formats available.
Aerospace Prepreg Autoclave Curing
NL230 may be selected for suitable aerospace prepreg curing processes requiring a higher thermal rating.
Advanced Carbon Fiber Components
The film can be used in compatible manufacturing processes for advanced carbon fiber composite components.
High-Temperature Composite Tooling
NL230 is an option for suitable tooling applications involving elevated processing temperatures.
Industrial Autoclave Processing
The grade can be considered for qualified autoclave operations when temperature, pressure and cure duration are within the verified film capability.
NL250 is the highest-temperature grade in the JLON nylon vacuum bagging film range, with a maximum rated service temperature of 246°C.
It is intended for selected high-temperature composite manufacturing processes that require greater thermal capability than the NL204 and NL230 grades.
NL250 has a reference thickness of 75 ±3 μm, specified tensile strength of at least 60 MPa and elongation at break of at least 350%.
Regular stock configurations include blue flat sheet and tubular films.
High-Temperature Autoclave Curing
NL250 can be evaluated for compatible autoclave curing processes involving elevated temperatures.
Advanced Aerospace Composite Components
The film may be used for selected aerospace composite manufacturing processes where the temperature rating and material qualification requirements are appropriate.
High-Temperature Composite Tooling
NL250 provides a higher-temperature bagging option for suitable composite tooling applications.
Selected Phenolic Resin Systems
Some phenolic composite formulations require elevated curing temperatures. NL250 may be considered where its verified process capability meets the curing requirements.
Selected BMI Resin Systems
Certain bismaleimide resin systems also involve high-temperature processing. Compatibility with NL250 should be confirmed through process-specific evaluation and testing.
Width / Format | Thickness (μm) | Roll Length (m) |
1.5 m sheet | 50 / 65 | 153 |
3.0 m sheet | 50 / 65 / 75 | 153 |
4.0 m sheet | 50 / 75 | 153 |
4.1 m sheet | 50 / 75 | 153 |
4.2 m sheet | 50 / 75 | 153 |
4.6 m sheet | 50 | 153 |
7.0 m sheet | 75 | 153 |
2.0 m tube → 4.0 m listed opened width | 50 | 153 |
2.1 m tube → 4.2 m listed opened width | 50 / 75 | 153 |
1.5 m tube → 3.0 m listed opened width | 50 / 65 / 75 | 153 |
Tube Width → Listed Opened Width (m) | Thickness (μm) | Roll Length (m) |
0.08 → 0.16 | 50 | 300 |
0.10 → 0.20 | 50 | 300 |
0.20 → 0.40 | 50 | 300 |
0.25 → 0.50 | 50 | 300 |
0.45 → 0.90 | 50 | 120 |
0.60 → 1.20 | 50 | 120 |
0.70 → 1.40 | 50 | 120 |
0.75 → 1.50 | 50 | 120 |
1.00 → 2.00 | 50 | 120 |
1.20 → 2.40 | 50 | 120 |
1.50 → 3.00 | 50 | 120 |
Flat sheet film can also be produced by slitting tubular film.
Selected customized configurations may be available up to 8 meters opened width, subject to technical confirmation.
Other widths and roll lengths may be manufactured with a minimum order quantity of 10,000 m² per model.
Width / Format | Color | Thickness (μm) | Roll Length (m) |
1.5 m sheet | Green | 75 | 153 |
0.7 m tube → 1.4 m listed opened width | Green | 75 | 150 |
3.0 m sheet | Green | 75 | 153 |
1.5 m tube → 3.0 m listed opened width | Green | 75 | 153 |
4.0 m sheet | Green | 75 | 153 |
2.0 m tube → 4.0 m listed opened width | Green | 75 | 153 |
2.1 m tube → 4.2 m listed opened width | Green | 75 | 153 |
7.0 m sheet | Green | 75 | 153 |
3.5 m tube → 7.0 m listed opened width | Green | 75 | 153 |
3.0 m sheet | Blue | 50 | 153 |
1.5 m tube → 3.0 m listed opened width | Blue | 50 | 153 |
Current stock availability, delivery lead time and applicable thickness tolerance should be confirmed before ordering.
Width / Format | Color | Thickness (μm) | Roll Length (m) |
1.5 m sheet | Blue | 75 | 153 |
3.0 m sheet | Blue | 75 | 153 |
1.5 m tube → 3.0 m listed opened width | Blue | 75 | 153 |
The listed dimensions represent regular supply configurations. Actual inventory and production lead times should be confirmed before ordering.
High-temperature nylon vacuum bagging films are used in suitable aerospace composite manufacturing processes where laminates require elevated-temperature curing.
The film forms a sealed vacuum envelope around the composite laminate during compatible oven or autoclave curing cycles.
JLON supplies multiple temperature grades for manufacturers processing carbon fiber composite panels, structural components, housings and other advanced composite parts.
Aerospace-specific material qualification, traceability and approval requirements should be verified separately.
Autoclave curing is commonly used in advanced composite manufacturing, particularly for carbon fiber prepreg components.
During curing, the vacuum bagging film must withstand the specified temperature and pressure conditions while maintaining the integrity of the bagging assembly.
JLON NL204, NL230 and NL250 provide different thermal ratings for suitable prepreg and autoclave manufacturing processes.
The final film selection should consider maximum curing temperature, holding time, autoclave pressure and resin compatibility.
Out-of-autoclave processing uses controlled vacuum and elevated temperature to cure suitable prepreg systems without conventional autoclave pressure.
JLON NL204 can be evaluated for compatible elevated-temperature oven-curing and out-of-autoclave processes.
The appropriate film grade depends on the temperature profile, curing duration and mechanical requirements.
Composite molds and tooling components may require high-temperature vacuum bagging materials during manufacture.
JLON high-temperature nylon films provide temperature-rated options for suitable tooling resin systems.
The selected film must be compatible with the tooling cure schedule and the associated vacuum bagging consumables.
Selected phenolic and bismaleimide resin systems require elevated curing temperatures.
JLON NL250, rated at 246°C maximum service temperature, may be considered for suitable high-temperature composite processing cycles.
Compatibility must be verified against the actual resin formulation, curing duration and processing pressure.

The appropriate vacuum bagging film depends on the maximum processing temperature, curing duration, pressure requirements and resin system.
JLON offers different nylon film grades to help composite manufacturers identify suitable options for elevated-temperature curing.
Required Processing Temperature | Recommended JLON Film | Suggested Release Film |
Up to 150°C | NL204 | Compatible 160°C-rated release film |
Above 150°C to 190°C | NL204 | Suitable ETFE / FEP release film |
Above 190°C to 210°C | NL230 | Suitable ETFE / FEP release film |
Above 210°C to 230°C | NL250 | Suitable ETFE / FEP release film |
Important Selection Note
The recommendations above are preliminary and do not establish unrestricted continuous-use ratings.
A film's maximum service temperature must be considered together with the complete curing cycle, including holding time, pressure, heating rate, resin chemistry and sealing conditions.
For lower-temperature vacuum infusion processes, JLON also supplies a separate standard vacuum bagging film range, including P100 modified PE/PP and NL150 nylon/PE films.
High-temperature nylon vacuum bagging film is a heat-resistant polymer film used to create a sealed vacuum envelope around composite laminates during elevated-temperature curing.
It is commonly used for suitable prepreg, oven-curing and autoclave-processing applications.
JLON supplies three high-temperature nylon vacuum bagging film grades.
NL204 has a maximum rated service temperature of 204°C, NL230 is rated at 230°C and NL250 is rated at 246°C.
The appropriate grade depends on the actual manufacturing process and curing requirements.
JLON NL230 has a maximum rated service temperature of 230°C, while NL250 is rated at 246°C.
For a process operating at 230°C, the selection should consider curing duration, autoclave pressure and the required thermal margin.
NL250 may offer additional thermal headroom, but the selected film must be validated for the complete curing cycle.
The primary difference is their maximum rated service temperature.
NL204 is rated at 204°C, NL230 at 230°C and NL250 at 246°C.
The available thicknesses, film formats, colors and mechanical specifications also vary by grade.
Yes. Selected NL204 and NL230 configurations are available in 50 μm thickness.
Available widths and roll lengths depend on the film grade and stock configuration.
High-temperature nylon bagging film can be used in suitable aerospace composite manufacturing processes involving prepreg and elevated-temperature curing.
However, any project-specific aerospace material qualification, batch traceability or approval requirements must be confirmed separately.
Yes, provided the film is compatible with the prepreg resin system, curing temperature, pressure and processing duration.
JLON supplies different temperature-rated nylon films for evaluation in carbon fiber prepreg manufacturing.
Yes. JLON supplies selected NL204, NL230 and NL250 grades in tubular film formats.
Customers should specify the required dimensions and confirm the tube-width measurement convention when ordering.
Selected regular high-temperature nylon film configurations are available up to 7 meters.
Customized configurations up to 8 meters opened width may be available, subject to technical confirmation and order quantity.
The reference thickness specifications are 50 ±3 μm for selected NL204 and NL230 grades and 75 ±3 μm for NL250.
For other available thicknesses, the applicable tolerance should be confirmed against the relevant product specification.
The supplied technical specifications list heat-sealing temperature ranges of 180–220°C for NL204, 220–250°C for NL230 and 180–220°C for NL250.
Actual sealing conditions should be verified according to the film grade, sealing equipment and joint requirements.
Standard vacuum bagging films are typically selected for lower-temperature vacuum infusion and general FRP manufacturing.
High-temperature nylon vacuum bagging films provide higher temperature ratings for suitable prepreg, autoclave and elevated-temperature composite curing processes.
JLON supplies both standard and high-temperature film ranges to meet different manufacturing requirements.
Yes. JLON supplies release films, sealant tapes, peel ply, breather fabrics and other vacuum bagging consumables.
The appropriate materials should be selected according to the complete curing temperature and pressure cycle.
Technical datasheets and relevant batch documentation can be provided according to product and order requirements.
Customers with specific quality, traceability or qualification requirements should confirm these before placing an order.
Looking for high-temperature nylon vacuum bagging film for aerospace composites, carbon fiber prepreg or autoclave curing?
JLON supplies NL204, NL230 and NL250 nylon bagging films in different thicknesses, widths and roll configurations.
Our team can help identify available stock specifications and coordinate the supply of related composite processing consumables.
For a quotation, please provide your required curing temperature, holding time, process pressure, film thickness, width, roll length, film format and estimated order quantity.
Contact JLON for Technical Data, Samples and Pricing
JLON – Composite Materials & Vacuum Bagging Consumables Supplier