Compoflex® 400

Compoflex® 400 is a peel ply, release film and breather, used to control flow rate and release consumables from a composite laminate. Compoflex® 400 generates a very smooth surface ideal for painting of the composite laminate. 

For secondary bonding we recommend Compoflex® SB 400. Release film perforation style: Medium bleed characteristics.

Compoflex® 400 is a high weight breather (300g / 10 oz) ideal for medium or high pressure cures and can be used as bleeder at any pressure. Works well with polyester, vinylester, epoxy, phenolic and other types of resin.

Technical data

PropertyCompoflex 400Standard
Recommended working temperature145°C (293°F) -
Fibre typePolypropylene-
Fabric constructionNonwoven-
Weight400 gsmEN 965
Thickness1.5 mmISO 9863 - 1
Tear resistance MD/CD460 N/275 NISO 9073 - 4
Pore size < 10 μmISO 12956


Working temperature
Recommended max. working temperature is 144°C (293°F). The melting point for polypropylene is 165°C (329°F). However, it is possible to use Compoflex® at 200°C (392°F) due to the fact that Compoflex® performs before the temperature exceeds the melting point. After cooling, the material becomes stable again, and peeling is just as easy as normal. We recommend conducting a test on a small part first.

Above technical data are indicative.
MD = Machine direction  
CD = Cross direction

Width: 1.52 m (60 inch)
Length: 61 m (200 ft.)
Packing: 9 rolls per pallet each roll in clear foil 

Rolls can be cut to size maximum width available is 4.5 m (177.6 inch)


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