SE 70 LOW TEMPERATURE CURE HIGH TOUGHNESS EPOXY PREPREG SYSTEM ¬ Faster cycle times at elevated temperature Excellent balance of mechanical properties and toughness Long out-life – up to 4 weeks @ 18-22°C (64-72°F) Range of compatible adhesive films and ancillary products Excellent surface finish Suitable for vacuum bag, press or autoclave consolidation Germanischer Lloyd Certified INTRODUCTION SE70 is part of the range of prepreg products. This unique product range provides technically and commercially competitive engineering materials, ideal for use either solely, or in conjunction with other products from within the product range along with other Gurit products. SE70 is a hot melt epoxy prepreg ideally suited to the manufacture of thick sections. It can be cured at temperatures as low as 70ºC (158ºF), but can also be used for the rapid manufacture of components through its 25-minute cure at 120ºC (248ºF). All of this can be achieved together with out-life of 28 days at 21ºC (70ºF). SE70 is designed for vacuum bag pressing and offers excellent mechanical performance on glass fibre reinforcements. Currently SE70 is manufactured into a prepreg structure with E-glass and Carbon fibres, which are manufactured into biax or woven materials. This data sheet is concerned with carbon reinforcements.

PROCESSING NOTES - GENERAL PROCESSING NOTES THIN LAMINATES When preparing the lay-up the prepreg should be removed from the freezer and allowed to thaw in a sealed bag. This may take 6 to 24 hours depending on roll size. This prevents atmospheric moisture from condensing on the prepreg which may cause voiding on cure. The mould surface should be release coated and must have been tested for vacuum integrity prior to lay-up. When using very thin laminates (eg with a total laminate fibre 2 weight of less than 300g/m ), care needs to be taken to avoid extracting excessive amounts of resin during...

PRODUCT INFORMATION AVAILABILITY PROPERTY SE70 prepregs are available in a variety of fabric forms, normally supplied on a single polythene film. Please contact Technical Services to discuss specific requirements and availability. The rd product formats listed below also benefit from 3 Party Certification. Nominal Resin Content (by weight) Nominal Fibre Weight Nominal Areal Weight HEC300/35% Weight per unit area of 300g/m2 PAN based carbon fibre with 12K or 24K Germanischer Lloyd Nominal Roll Width Nominal Roll Length PRODUCT DESCRIPTION 1 x paper / 1 x MDPE poly *allows repositioning of plies...

LAMINATE PROPERTIES CURED RESIN PROPERTIES Oven cured using standard processing techniques and a minimum cure time of 16 hours at 70°C (158°F). PROPERTY TEST STANDARD Tensile Strength Tensile Modulus Flexural Strength Flexural Modulus Compressive Strength Compressive Modulus UNIDIRECTIONAL LAMINATE PROPERTIES Cured using standard processing techniques at the standard cure cycle of 16 hours at 70ºC (ºF). PROPERTY TEST STANDARD Resin Content Cure Method Cure Schedule Glass Transition Temperature 0° Tensile Cured Fibre Volume* 0° Tensile Strength (Normalised to 60%) 0° Tensile Modulus (Normalised...

All advice, instruction or recommendation is given in good faith but the Company only warrants that advice in writing is given with reasonable skill and care. No further duty or responsibility is accepted by the Company. All advice is given subject to the terms and conditions of sale (the Conditions) which are available on request from the Company or may be viewed at the Company’s Website: www.gurit.com/terms-and-conditions.aspx. The Company strongly recommends that Customers make test panels and conduct appropriate testing of any goods or materials supplied by the Company to ensure that they...