HexPly® M9/M10 120 °C (250 °F) curing epoxy matrix Product Data Description HexPly® M9/M10 is a formulated epoxy resin which is suitable for low pressure moulding processes. It is very versatile and allows a range of processing temperatures from 85 °C (185 °F) up to 150 °C (302 °F). HexPly® M10 can be used for very large industrial components subjected to severe environmental conditions. HexPly® M10 has high fatigue resistance and gives a good surface finish. HexPly® M10 exhibits a very long shelf life at room temperature. Several variations are available including: I HexPly® M10 for medium tack I HexPly® M9 for higher tack HexPly® M9/M10 is used extensively for structural marine applications, wind turbine blades and a wide variety of industrial applications. Benefits and Features I Versatile cure cycle 85-150 °C (185-302 °F) I Suitable for thick laminates I Well adapted to low pressure processing I Good surface finish I Good flexibility and handleability of prepreg I Low resin density I Excellent tack life I Excellent fatigue resistance I High flow matrix I Translucent resin after curing I Suitable for a range of pressures 0.3-5 bar (4-73 Psi)

HexPly® M9/M10 Product Data Resin Matrix Properties Rheology Gel Time Viscosity/poise Gel Time (minutes) 1000 36 32 28 100 24 20 16 12 10 8 4 1 60 68 76 84 92 0 100 110 120 130 140 150 160 170 100 108 116 Temperature ˚ C Temperature ˚C Cured Matrix Properties cured at 180 °C (350 °F) Tensile strength Tensile modulus Strain Flexural strength Flexural modulus Glass transition temperature Cured resin density 85 MPa (12.3 Ksi) 3.2 GPa (460 Ksi) 3.75 % ISO 136 MPa (19.7 Ksi) 3.16 GPa (458 Ksi) 110-135 °C (230-275 °F) 1.2 g/cm3 Method ISO R527 ISO R527 R527 ISO 178 ISO 178 DMA Prepreg Curing Conditions...

120 °C (250 °F) curing epoxy matrix Typical Mechanical Properties on HexPly® M9/M10 prepregs Main references (Others available) E-glass Balanced fabric 600 g/m2 E-glass UD tape 1200 g/m2 0° Tensile strength MPa (Ksi) 600 (87) 1300 (188) 0° Tensile modulus GPa (Msi) 21 (3.04) 42 (6.1) 0° Flexure strength MPa (Ksi) 700 (101) 1200 (174) 0° Flexure modulus GPa (Msi) 20 (2.9) 41 (5.9) 0° Compression strength MP (Ksi) a 540 (78) 900 (130) 0° Short beam strength MP (Ksi) a 60 (8.7) 75 (10.9) 50 55 TEST Fibre volume content % HS 3k carbon Balanced fabric 193 g/m2 HS 12k carbon Balanced fabric 285 g/m2...

HexPly® M9/M10 Product Data What is the best cure cycle for thicker components ? To avoid exotherms it is advisable to incorporate a dwell and a controlled heat up rate. Dwell - used to equalise tool and component temperatures and to initiate a controlled prepreg cure. Controlled heat up rate - avoids a large temperature differential between the air temperature and the component. Any accumulations of resin are prone to exotherm under these conditions. Prepreg Storage Life I Tack Life @ 23 °C (73 °F) 60 days I Guaranteed Shelf Life @ -18 °C (0 °F) 12 months Precautions for Use The usual precautions...