Products

HexPly® M76 is a versatile curing toughened epoxy resin that can be cured from 275ºF (135ºC) to 350ºF (177ºC), depending on service temperature requirements. HexPly® M76 is formulated for lower temperature autoclave or press mold processing. The recommended lay-up procedure for HexPly® M76 is HSP-L4. The recommended cure procedures are HSP-C5 (275ºF) or HSP-C1 (350ºF).

HexPly® 954-3 is a 350ºF (177ºC) curing cyanate resin with excellent resistance to moisture absorption, outgassing and microcracking. HexPly® 954-3 is formulated for autoclave or press molding using a standard cure of two hours at 350ºF (177ºC). Glass transition temperature can be maximized by post curing at 450ºF (232ºC). The recommended lay-up procedure is HSP-L3. The recommended cure procedure is HSP-C1 or HSP-C2.

HexPly® 954-2A is a 350ºF (177ºC) curing toughened cyanate resin with low moisture absorption, and excellent microcracking resistance. HexPly® 954-2A is formulated for autoclave or press molding. Recommended cure is two hours at 350ºF (177ºC). The recommended lay-up procedure is HSP-L3. The recommended cure procedure is HSP-C1 or HSP-C3. Typical applications for HexPly® 954-2A include primary and secondary aircraft structure, space structures, cryogenic tanks, or any application where impact resistance, light weight and excellent dielectric properties are required. HexPly® 945-2A can be impregnated via hot melt or solution techniques on all available fibers and fabrics.

HexPly® M73 is a 350°F (177°C) curing toughened resin with 350°F (177°C) dry and 270°F (132°C) wet service capabilities. HexPly® M73 is formulated for autoclave or press molding and can be cured at 350°F for six hours. A two-hour cure at 350°F with two-hour post-cure at 390°F may also be used. Unidirectional tape and woven fabric impregnated with HexPly® M73 resin will retain tack for 10 or more days at room temperature.

M74 is a high flow, 350°F (177°C) curing epoxy resin with extensive space structural heritage*. M74 is formulated for autoclave processing, but it has been successfully processed by press molding. Unidirectional tape and woven fabric impregnated with M74 resin will retain good tack and drape for at least 10 days at 70°F (21°C). Standard cure is for two hours at 350°F (177°C). Hexcel recommended lay-up procedure is HSP-L1 or HSP-L2. Recommended cure procedure is HSP-C1 or HSP-C2.