BF65
JLON
ROLL
2m/3m/4m/6m/7m/8m/9m/10m/12m
50/65/75μm
Yellow/Green
100m/150m/200m
Technical data of Bagging Film.pdf
JLON vacuum bagging film is a strong, flexible, multilayer nylon film designed for vacuum infusion, vacuum bagging and composite curing processes.
With high elongation, reliable mechanical strength and widths up to 12 meters, the film conforms closely to complex mould surfaces and helps maintain a stable vacuum throughout the manufacturing cycle. The wide format reduces seams on large composite parts, lowering the risk of air leakage and material waste.
JLON supplies vacuum bagging film in different thicknesses, widths, roll lengths, colors and folded formats to meet the requirements of marine, wind energy, automotive and general industrial composite production.
Property | Unit | BF65 Specification | Test Method |
Material | — | Multilayer nylon film | — |
Film construction | — | Multilayer co-extruded | — |
Standard thickness | μm | 50 / 65 / 75 | — |
Standard color | — | Light yellow / Green | — |
Maximum working temperature | °C | 170 | — |
Elongation at break | % | 350 | ASTM D882 |
Tensile strength | MPa | 34 | ASTM D882 |
Maximum film width | m | 12 | — |
Roll length | m | 100 / 150 / 200 | — |
Available format | — | Flat / V-fold / W-fold | — |
Packaging | — | Roll | — |
JLON supplies wide nylon vacuum bagging film for both small composite parts and large moulding applications.
Width | Available Thickness | Typical Roll Length |
2 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
3 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
4 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
6 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
7 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
8 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
9 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
10 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
12 m | 50 / 65 / 75 μm | 100 / 150 / 200 m |
Actual availability depends on the selected width, thickness, color and roll length. Please contact JLON for the exact specification and current production schedule.
The multilayer co-extruded construction helps reduce the risk caused by pinholes, weak spots and inconsistencies in single-layer film.
Elongation up to 350% allows the film to conform to curved surfaces, corners and complex mould geometries while reducing bridging.
Good tensile strength helps the film withstand handling, vacuum pressure and movement during composite processing.
Wide bagging film reduces the number of seams required for wind turbine blades, marine structures and other large composite components.
BF65 is suitable for composite curing processes with working temperatures up to 170°C, subject to the actual curing cycle and processing conditions.
Thickness, width, roll length, color and folding format can be selected according to the mould size and production process.
JLON nylon vacuum bagging film is suitable for a wide range of composite manufacturing processes.
The film creates an airtight enclosure over the mould and laminate, allowing vacuum pressure to compact the reinforcement and draw resin through the laminate.
It helps consolidate wet laminates, remove trapped air and improve laminate uniformity.
High-temperature nylon bagging film can be used to maintain vacuum pressure during compatible prepreg and oven-curing cycles.
Wide-format film is especially suitable for components where excessive seams would increase labour and leakage risk.
Used in the vacuum infusion and curing of:
· Wind turbine blades
· Nacelle covers
· Blade moulds
· Composite structural components
Wide film reduces seaming work and helps maintain a stable vacuum across large mould surfaces.
Suitable for the production of:
· FRP boat hulls
· Decks
· Bulkheads
· Hatches
· Composite sandwich panels
· Yacht components
The high elongation helps the film follow curved hull and deck geometries.
Used for carbon fiber and fiberglass composite components manufactured through vacuum bagging, infusion or compatible curing processes.
Suitable for large FRP pipes, chemical tanks, pressure-resistant composite components and industrial mouldings.
Used for composite boards, shells, panels, equipment housings and other fiberglass or carbon fiber parts.
The correct film should be selected according to the curing temperature, mould geometry, component size and manufacturing process.
Selection Factor | Recommendation |
Curing temperature | Select a film with sufficient temperature resistance for the complete curing cycle |
Complex geometry | Use film with high elongation to reduce bridging around corners and recesses |
Large mould size | Use wide or folded film to reduce seams and leakage points |
Sharp edges | Add suitable protective materials to prevent punctures |
Vacuum infusion | Confirm compatibility with resin, sealant tape and other consumables |
Oven curing | Check maximum temperature and duration before production |
Autoclave curing | Confirm temperature, pressure and curing cycle before selecting the grade |
When requesting a quotation, please provide:
· Manufacturing process
· Maximum curing temperature
· Required thickness
· Film width
· Roll length
· Flat, V-fold or W-fold format
· Estimated order quantity
JLON offers different film formats to simplify storage, handling and deployment.
Suitable for smaller moulds and applications where the required film width can be supplied and handled directly.
The film is folded once along its width. This allows a wider film to be packed in a narrower roll and opened during application.
The film is folded multiple times to accommodate very wide products, making large-format film easier to transport, store and unfold over the mould.
The most appropriate format depends on the final unfolded width, mould size and production method.
Creates a clean, textured surface after removal and reduces the need for mechanical sanding before secondary bonding.
Separates the laminate from the breather or flow media and helps control resin or air movement according to the perforation pattern.
Promotes efficient resin flow across the laminate during vacuum infusion.
Provides an air path and absorbs excess resin in suitable vacuum bagging or prepreg processes.
Seals the bagging film to the mould flange and helps maintain an airtight vacuum system.
Used for resin distribution and vacuum extraction during the infusion process.
Vacuum bagging film is an airtight flexible film used to enclose a composite laminate during vacuum infusion, vacuum bagging or curing. A vacuum is drawn inside the sealed bag to compact the laminate and remove trapped air.
BF65 is made from multilayer co-extruded nylon film. The multilayer construction provides improved reliability against weak spots and film inconsistencies.
BF65 has a stated maximum working temperature of 170°C. Actual suitability depends on the complete curing temperature, duration, vacuum pressure and processing conditions.
Standard thickness options include 50 μm, 65 μm and 75 μm. Availability may vary according to the selected width and roll length.
JLON can supply vacuum bagging film with widths up to 12 meters, including folded formats for easier handling and transportation.
High elongation allows the film to stretch over corners, curves and complex mould surfaces. This reduces bridging and helps the film conform more closely to the laminate.
Yes. BF65 is suitable for vacuum infusion and general vacuum bagging applications within its specified processing limits.
BF65 should not automatically be selected for autoclave use. Autoclave applications require confirmation of pressure, maximum temperature and curing duration. JLON can recommend another suitable grade after reviewing these conditions.
Flat film is supplied at its normal roll width. V-fold and W-fold film are folded across their width, allowing very wide film to be packed and handled in a narrower roll.
It is commonly used in composite processes involving these resin systems. However, customers should test the complete material combination under their actual temperature and processing conditions before production.
Use the correct film thickness, avoid sharp edges, leave sufficient film for corners, prevent bridging, inspect the film before use and apply compatible sealant tape to a clean mould flange.
Yes. Please provide the required temperature, thickness, width, manufacturing process and application. A suitable sample can be recommended after the specification is confirmed.
