Epoxy Systems for Industrial Composites

The industrial market covers a wide range of opportunities for composite application. Composites can simply act as cost-competitive, weight-saving alternatives to traditional materials. But they can also form next-generation filament-wound pressure vessels for fuel transport, or work in robotic applications that require high precision, lightweight, fast-moving apertures. Composites can excel in industrial applications because of their:

Low weight
High strength-to-weight ratios
Suitability for high dynamic loads
Excellent fatigue properties
Precision shapability
Dimensional stability
Corrosion and environmental resistance

Epoxy Resin System	Performance & Features							Remarks
Epoxy Resin System	Mix Ratio (weight)	Tg (°C/°F)	Pot Life (min)¹	Crystallization Stability	Process Robustness	Ambient Cure	Surface quality	Remarks
Filament Winding
EPIKOTE™ Resin 05127/EPIKURE™ Curing Agent 05524	100:26	170/338	480-600			NA		Low viscosity Long working time High Tg
EPIKOTE Resin 05127/EPIKURE Curing Agent 05476	100:22	160/320	360-480			NA		Long pot life High Tg / heat resistance
Epoxy Research Resin RSL 4515/Epoxy Research Curing Agent RSC 4577	100:29	90/195	300			NA		Toughened system for pressure vessels Improved burst performance
EPONOL™ Resin 2509/EPONOL 2501/B	100:3	90/194	60-100²	NA		NA		Phenolic Good fire protection
EPON™ Resin 862 / EPIKURE Curing Agent W	100:26	155/310	>600					Good mechanical performance Good chemical resistance Low viscosity Long working time Non-MDA aromatic amine
EPON Resin 826 / Anhydride LS-81K	100:100	120/248	5	1200				Low viscosity Long working time Good toughness
EPON Resin 826 / Anhydride LS-81K	100:100	110/230	7	900				Low viscosity Long working time Good toughness
Hand Lay-up
EPIKOTE Resin MGS™ LR 235 EPIKURE Curing Agents MGS LH 234 and 238	100:34	95/203	10-375					Reduced bleed out Reduced exothermicity DNV/GL approved Improved laminate quality Bio-based components
EPON Resin 862/EPIKURE Curing Agent 9553	100:17	85/185	30					Good toughness Good elongation
1) Pot life of 100g in a waterbath at 30°C	Good	Better	Best

Epoxy Resin System	Performance & Features								Remarks
Epoxy Resin System	Mix Ratio (vol.)	Tg (°C/°F)	Pot Life (min)¹	Mix Viscosity (at 25°C)	Infusion Performance	Exothermicity	Tg Development	Crystallization Stability	Remarks
Resin Infusion
EPIKOTE Resin MGS RIMR 035c EPIKURE Curing Agent MGS RIMH 0366 and 038	100:34	80/175	110-330	250-280					Tailorable processing window Low water absorption DNV/GL approved
EPIKOTE Resin MGS RIMR 426 EPIKURE Curing Agents MGS RIMH 433-435	100:32	90/194	45-140	220					Excellent ambient cure system General purpose infusion system Enables infusion at low ambient temperature
1) Pot life of 100g in a waterbath at 30°C	Good	Better	Best

Epoxy Resin System	Performance & Features							Remarks
Epoxy Resin System	Mix Ratio (vol.)	Tg (°C/°F)	Pot Life (min)¹	Mix Viscosity (at 25°C)	Process Robustness	Tg Development	Crystallization Stability	Remarks
Pultrusion
EPIKOTE Resin RSL 3896/EPIKURE Curing Agent LS-252V	100:143	200/392	240	1500-2000				Tailorable processing window Low water absorption DNV/GL approved
EPON Resin 826 / Anhydride LS-81K	100:100	120/248	300	1200				Low viscosity Long working time Good toughness
EPON Resin 862 / Anhydride LS-81K	100:100	110/230	420	900				Low viscosity Long working time Good toughness
1) Pot life of 100g in a waterbath at 30°C	Good	Better	Best

For more information, speak with a Westlake Epoxy representative.