Auxiliary Materials
Release films, FEP and perforation
Release films separate the laminate from bleeders, cauls or tools. FEP is a fluoropolymer release film often selected for high release performance and chemical resistance.
In simple terms
Release films separate the laminate from bleeders, cauls or tools. FEP is a fluoropolymer release film often selected for high release performance and chemical resistance.
Best for
Preventing consumables from bonding to resin while controlling whether resin can bleed through.
Watch out for
Perforation pattern controls resin flow; a film that is too open can starve a laminate, while an unperforated film can trap resin.
Typical applications
Prepreg cure, wet-lay-up bagging, caul plates and resin-rich surface control.
Related tools
Use the calculators to turn these concepts into preliminary engineering estimates.