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ST 70

ST 70
6Pages

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Award winning SPRINT™ matrix Zero volatile/solvent content Available with a range of reinforcements Suitable for vacuum bag processing Controllable in thick sections Recommended cure between 70-120ºC (158-248ºF) Excellent laminate quality, low bleed Germanischer Lloyd Certified INTRODUCTION ST 70 is part of the range of SPRINT™ products. This unique 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. ST 70 is a hot-melt, Diuron free epoxy SPRINT™ ideally suited to the manufacture of thick sections. It can be cured at temperatures as low as 70ºC (158ºF), but it 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 an outlife of 21 days at 21ºC (70ºF) ST 70 is designed for vacuum bag processing and offers excellent mechanical performance on glass fibre reinforcements. Currently ST 70 is manufactured into a SPRINT™ structure with E-glass and Carbon fibres, which are manufactured into biaxial or woven materials.

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INSTRUCTIONS FOR USE 1. The moulding surface must first be treated with a release agent. If a Surface Film is required, this should be applied directly to the tool face prior to the lay-up of the SPRINT™. Please refer to Processing Notes for application details. The required number of plies of SPRINT™ are then placed on to the tool face. A thermocouple may be inserted into the lay-up outside the net trim line. Dry glass tows should be inserted between plies of SPRINT™ to provide an air evacuation path out of the laminate. The second end of the tow should be made available for contact with...

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PREPREG PROPERTIES RHEOLOGY DATA TRANSPORT & STORAGE ST 70 resin viscosity profile conducted at 1°C (1.8°F)/minute. When stored sealed & out of direct sunlight. Minimum Viscosity STORAGE TEMP Temperature at Minimum Viscosity All SPRINT™ materials should be stored in a freezer when not in use to maximise their useable life, since the low temperature reduces the reaction of resin and catalyst to virtually zero. However, even at -18°C (0°F), the temperature of most freezers, some reaction will still occur. In most cases after some years, the material will become unworkable. To avoid...

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LAMINATE PROPERTIES CURED RESIN PROPERTIES Resin cast oven cured using standard processing techniques and standard cure of 16 hours at 70°C (158°F). PROPERTY TEST STANDARD Tensile Strength Tensile Modulus Tensile Strain to Failure Flexural Strength Flexural Modulus WOVEN LAMINATE PROPERTIES - CARBON Cured using standard processing techniques and a standard cure time of 16 hours 70⁰C (158°F). PROPERTY 2 x 300g/m2 2x2 twill fabric / 12k fibre 2 x 660g/m2 2x2 twill fabric / 12k fibre Resin Content Cure Method Cure Schedule Fabric / Fibre Description TEST STANDARD Glass Transition Temperature...

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WOVEN LAMINATE PROPERTIES - GLASS Cured using standard processing techniques and a standard cure time of 16 hours 70⁰C (158°F). SYMBO L 2 x 580g/m2 2x2 twill fabric / E-glass 945g/m2 stitched triaxial fabric / E-glass Resin Content Cure Method Cure Schedule PROPERTY Fabric / Fibre Description TEST STANDARD Glass Transition Temperature (DMA) 0° Tensile Cured Fibre Volume* 0° Tensile Strength (Normalised to 60%) 0° Tensile Modulus (Normalised to 60%) 0° Compressive Str. Fibre Volume * 0° Compressive Strength (Normalised to 60%) 0° Comp. Mod. laminate Fibre Volume* 0° Compressive Modulus...

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NOTICE 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...

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ST 70 6Pages

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ST 70
6Pages