Compoflex® SB 400

Compoflex® SB 400 is a peel ply, release film and breather, used to control flow rate and release consumables from a composite laminate. 

Compoflex® SB 400 generates a very rough and textured surface ideal for secondary bonding or painting of a composite laminate. Compoflex® SB 400 may reduce or eliminate the need for sanding or abrading. Best results with epoxy resin, but we always recommend testing.

Release film perforation style: low to medium bleed characteristics. Compoflex® SB 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 SB 400Standard
Recommended working temperature145°C (293°F) -
Fibre typePolypropylene-
Fabric constructionNonwoven-
Weight400 gsmEN 195
Thickness1.5 mmISO 9863 - 1
Tear resistance MD/CD460 N/275 NISO 9073 - 4
Pore size < 10 μmISO 12956


Maximum temperature is depending on process and Fibertex always recommends testing prior to use.
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 2.1 m (82.9 inch).


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