CYCOM® 890 RTM

CYCOM^® 890 RTM is a one-part liquid epoxy resin system. It has one month out-life at room temperature which reduces time required for the freeze-thaw-storage processes in a production environment. Its frozen storage shelf-life is 12 months at -18°C (0°F).

CYCOM^® 890 RTM’s viscosity is low enough at 80°C (176°F) to allow injection without excessive heating of either the resin or the transfer pipework. When the resin is heated to cure temperature its viscosity is further reduced, helping to ensure full wet-out of the reinforcing fibres.

CYCOM^® 890 RTM is fully cured after two hours at 180°C (356°F) after which it will have a dry performance up to 196°C (385°F) and a hot/wet performance of 177°C (351°F) If needed, an optional free-standing post-cure for two hours at 200°C (392°F) can be used. After postcure, the dry Tg of CYCOM^® 890 RTM increases to 217°C (423°F).

CYCOM^® 890 RTM is compatible with the range of reinforcing fibres used in manufacturing composite components, i.e., carbon, glass, aramid, etc. A fully compatible binder system, CYCOM^® 7720 has been developed for use with CYCOM^® 890 RTM. The binder is available pre-coated onto fabric. 

Features and Benefits

• One-part system
• Injectable at 80°C (176°F) with a 24-hour pot-life
• Two hours at 180°C (356°F) cure
• 196°C (385°F) dry Tg [217°C (423°F) after optional post-cure]
• Low reactivity; no special shipment requirements
• 30 days outlife at RT, 12 months shelf life at -18°C (0°F)
• 250 cP initial injection viscosity, less than 10 cP minimum viscosity
• Secure, regional supply chain