Toray E732
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TORAY Toray Advanced Composites PRODUCT DATA SHEET DESCRIPTION Toray E732 is a snap cure toughened epoxy resin matrix optimized for press curing (compression molding) prepreg applications. With a cure time of 4 minutes at 160°C (320°F) an onset Tg of 170°C (338°F) is achieved. At this higher temperature, medium to high production rates can be accomplished, with customers' able to produce beyond 50,000 parts per year. Toray E732 is a versatile matrix with a range of processing options allowing a variety of automotive and industrial applications to be realized. FEATURES Hot-in hot-out press processing Good surface finish and aesthetics Controlled resin flow for ease of processing Full Tg of 170°C (338°F) reached in 4 minutes at 160°C (320°F) Short cure cycles between 120°C (248°F) to 160°C (320°F) Low tack for easy lay-up PRODUCT TYPE 120°C (248°F) to 160°C (320°F) Cure Compression Molding Toughened Epoxy Component Prepreg TYPICAL NEAT RESIN PROPERTIES TYPICAL APPLICATIONS Density (ASTM D792-13) SHELF LIFE ► Compression molding Automotive accessories ► Sport and recreation components e.g., bicycle frames and parts Out life is the maximum time allowed at room temperature before cure. To avoid moisture condensation: Following removal from cold storage, allow prepreg to reach room temperature before opening the polythene bag. Europe/Middle East/Africa e explore@toraytac-europe.com t +

TORAY Toray Advanced Composites PRODUCT DATA SHEET TYPICAL LAMINATE PROPERTIES Standard Modulus 3K Carbon 205gsm 2x2 Twill 42% RC

Toray E732 PRODUCT DATA SHEET RETENTION OF MECHANICAL PROPERTIES Elevated Temperature Dry (ETD) Press Cured 10 Minutes at 140°C (284°F) at 45 PSI ILSS vs. Temperature ETD - BS EN ISO14130 Interlaminar Shear Strength (MPa) Interlaminar Shear Strength (ILSS) vs. Temperature of Standard Modulus 3K Carbon 205gsm 2x2T 42% RC E732 Laminate Flexural Strength vs. Temperature ETD - BS EN ISO 14125 E732-00 press cure 10minutes@140°C & 45psi Flexural Strength vs. Temperature of Standard Modulus 3K Carbon 205gsm 2x2T 42% RC E732 Laminate

Toray E732 PRODUCT DATA SHEET RHEOLOGY Storage & Loss Modulii (Pa) E732 Complex Viscosity Profiles

TORAY Toray Advanced Composites PRODUCT DATA SHEET PROCESSING Cut patterns to size and lay up the laminate in line with design instructions, taking care not to distort the prepreg. If necessary, the tack of the prepreg may be increased by gentle warming with hot air. CURE CYCLES During compression molding the resin will flow until the gel-point. After the recommended cure time, a 2 mm (0.78 inch) thick part will have generated a Tg in excess of the cure temperature. The table below provides information regarding gel times and cure times. The absence of cool-down and heat up rates has...

Toray E732 PRODUCT DATA SHEET EXOTHERM In certain circumstances, such as the production of thick section laminates rapid heat up rates or highly insulating masters, Toray E732 can undergo exothermic heating leading to rapid temperature rise and component degradation in extreme cases. Where this is likely, a cure incorporating an intermediate dwell is recommended in order to minimize the risk. Caution must be exercised in ensuring safe dwell temperatures and lay-up procedures are adhered to, especially when molding solid laminates in excess of 5 mm (0.20 in) thickness. Note that the risk of...