Flowlease Blue – 2-in-1 infusion mesh with release film (1500mm)

Flowlease Blue – infusion mesh and perforated release film in one material

Flowlease Blue is a ready-made combination of Knitflow 150 infusion mesh and Wrightlon® 3700 P16 perforated release film. The two materials are joined at the factory, so instead of laying two separate layers on the laminate you lay one. This shortens preparation of the infusion stack and reduces the amount of spray adhesive needed to hold the materials in place.

How does it work?

• Knitflow 150 mesh (a knitted PE mesh, 150 g/m²) creates channels through which the resin spreads quickly over the whole surface of the part.
• Wrightlon® 3700 P16 film thanks to its perforation lets the resin through into the laminate, and after cure separates the mesh from the part. The mesh and film come off together in one movement.

Why choose it?

• One layer instead of two, which means less work, less cutting and less adhesive
• Medium, predictable resin flow rate, well controlled in most infusions
• Lower resin losses
• The blue colour makes it easier to check placement and removal of the material
• Works with epoxy, polyester and vinyl ester resins
• Operating temperature up to 115°C
• Wide 2 m roll, convenient for large parts

Application example: infusing a panel or a deck

1. Mould coated with release agent
2. Stack of glass or carbon fabrics (optionally with a sandwich core)
3. Peel ply, if the surface will later be bonded or laminated
4. Flowlease Blue, film side towards the laminate
5. Spiral tube or resin feed channel and the vacuum line
6. Vacuum bag sealed with tape

After cure, Flowlease Blue is removed together with the peel ply, and all the consumables go in the bin in one go.

Industry applications

• Marine industry (hulls, decks, bulkheads)
• Wind energy
• Automotive and motorsport
• Panels and structural parts
• Mould making

Manufacturer: AirTech International – a world leader in consumables for composite processes with over 50 years of experience.