EP137-G228-40 Fiber reinforced thermosetting preimpregnated material for aircraft parts (e.g. passenger floor). Woven fabric of S2-glass filament yarn Style 6522, 115 g/m², 8H satin, preimpregnated with 40% epoxy resin EP137 (125ºC). Low-smoke, highly toughened and self-extinguishing epoxy resin system Very good FST behaviour Excellent adhesion to core materials Improved storage conditions at -5ºC Revision: 2011/02 Seite 1 von 4

Description Such composite structures can be exposed easily to temperatures in the range of -55ºC up to +90ºC. EP137-G228-40 consists of a S2-glass fabric Style 6522, impregnated with the epoxy resin EP137. The highly-toughened This prepreg meets the following AIRBUS material performance specification: resin matrix is a 125ºC curing system with a high flame-retardancy and low smoke behaviour at fire and provides excellent properties such as high interlaminar shear strength, adjustable tackiness and ABS 5672-02 retarded flow during processing. AIMS 05-10-027 (certification) The prepreg is perfectly...

Curing Conditions Standard Cycle 120/140/155ºC Temperature Cure Time 90/60/30 min 0.07 MPa Spec. Pressure Heat-up 3K/min from 60ºC (max) 4K/min to 60ºC Cool-down Remove material at at least 60ºC Press, Autoclave, Vacuum-bag Recommended curing process Mechanical Properties (Typical Values) Temp. [° C] Flexural Strength (warp) Flexural Modulus (warp) Tensile Strength (warp) Tensile Modulus (warp) RT 80 RT 80 RT 80 RT Standard ISO 178 ISO 178 ISO 527-4 ISO 527-4 Results 700 MPa 450 25 21 700 650 24 GPa MPa GPa Compressive Strength (warp) EN 2850 MPa Compressive Modulus (warp) EN 2850 GPa RT Interlaminar...

Burning Behaviour Test method Max. mean values 120 burn length after flame time Flammability vertical, 60s flaming AITM 2.0002A mm 3 s 0 after flame time of drips s Flammability vertical, 12s flaming Max. specific optical smoke density within 4 min flaming mode AITM 2.0007A 100 Heat release AITIM 2.0006 45 Heat release rate AITIM 2.0006 50 Ds kW m² kW*min m² Disclaimer The materials, products and services of the Gurit Group sold by the respective legal entity (the “Company”) of the Gurit Group are subject to the Standard Conditions of Sale of the Company which are available on request or may...