CYCOM 890 RTM Epoxy System

Click here to view the datasheet (Adobe Acrobat file).

CYCOM 890 RTM is a liquid epoxy resin system. It is available as a one-part system, with one month out-life at room temperature so as to reduce the requirement for time consuming freeze-thaw storage processes in a production environment. Its frozen storage shelf-life is 12 months at -18ºC (0ºF).

CYCOM 890 RTM’s viscosity is low enough at 80ºC (175ºF) to allow injection without excessive heating of either the resin or the transfer pipework. When the resin is heated to the cure temperature its viscosity is further reduced, helping to ensure full wet-out of the reinforcing fibres.

CYCOM 890 RTM is fully cured after 2 hours at 180ºC (355ºF), after which it will have a continuous dry service performance of 170ºC (338ºF), and a continuous hot/wet service performance of 160ºC (320ºF).

If necessary it is possible to carry out an optional free-standing postcure for 2 hours at 200ºC (390ºF), after which the resin will have a continuous dry service performance of 195ºC (383ºF), and a continuous hot/wet service performance of 170ºC (338ºF).

CYCOM 890 RTM is compatible with the usual range of reinforcing fibres utilised for the manufacture of composite components, i.e. carbon, glass, aramid etc.

For reinforcement preforming operations a fully compatible binder system, CYCOM 790 RTM, has been developed for use with CYCOM 890 RTM. The binder is available pre-coated onto fabrics of the customers choice.

Features and Benefits

• 1 part system
• 30 day out-life @ room temperature
• 12 month shelf-life @ -18ºC (0ºF)
• Injectable at 80ºC (175ºF) with a 24 hour pot-life
• 250 cps initial injection viscosity
• 10 cps minimum viscosity
• 2 Hours @ 180ºC (355ºF) cure
• 170ºC (350ºF) continuous dry service performance [195ºC (383ºF) after optional postcure]
• 160ºC (320ºF) continuous hot/wet service performance [170ºC (338ºF) after optional postcure]
• Fully compatible, toughness enhancing binder, CYCOM 790 RTM, available