81MGSR937D_TDS.pdf

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.. HEXION
Responsible Chemistry
EPIKO and EPIKURE Curing Agent MGS RIMH
Application
Low viscous infusion resin system for processing of woven and non-crimp multiaxial fabrics of low to high areal weight. Due to its very good
mechanical properties, this system is suitable for the production of components featuring high static and dynamic loadability and high heat
resistance.
Infusion resin RIMR 935 is based on bisphenol AF resin. Hardener RIMH 936 and RIMH 937 are a modification of aliphatic and cycloaliphatic
amines. Pot life (100 g mixed at 30 *C/86 F) is approximately 2 hours for RIMH 936 and 3,5 h for RIMH 937. Optimum viscosities for infusion are
tealized at temperatures in the range of 25 – 35 C (77 – 95 F). Pot life is then between approx. 1h (RIMH 936 at 40 C/104 F) to 5 h (RIMH 937
at 25 C/77 F). Following initial curing at room temperature, the parts are still brittle and require heat treatment at a min. temperature of 50
*C/122 F before processing or demoulding. Direct curing at elevated temperatures (60 C-100 C/140 *F-212 F) is possible. The curing time can
be reduced to a few minutes by this.
Non-tacky, high-gloss surfaces are obtained even with unfavourable curing conditions, such as low temperatures or high relative humidity.
The infusion resin system does not contain any unreactive components. All raw materials and additives feature a very low vapor pressure,
therefore permitting processing of the material under vacuum even at elevated temperatures. Compatibility problems are not to be expected in
combination with suitable geicoats, various paints (e.g., PUR-based), etc., however comprehensive tests are indispensable
These products can be stored for at least 24 months in their carefully sealed original containers. Even though it is unlikely, these products may
crystallise at temperatures below +15 C. The crystallisation is visible as a clouding or solidification of the contents of the container. If
crystallisation of either component should be observed, it can removed by warming up. Slow warming up to approx. 50 C-60 C (122 *F-140 F) in
a water bath or oven and stirring or shaking will clarify the contents of the container without any loss of quality. Use only completely transparent
products. Before warming up, open containers slightly to permit equalization of pressure. Caution during warm-up! Do not warm up over an open
flame! While stirring up, use safety equipment (gloves, eyeglasses, respirator equipment).
The relevant industrial safety regulations for the handling of epoxy resins and hardeners and our instructions for safe processing are to be
observed.
Specifications
Resin RIMR 935,
Density ig/om?} 4,14 – 1,20
Viscosity [mPas] 400 – 800
Epoxy equivalent [g/equivalent] 155 – 165
Epoxy value [equivalent/100g) 0,61 – 0,64
Refractory index 1,5350 – 15450
Hardener RIMH 936 Hardener RIMH 937
Density [glom?} 0,92 – 0,97 0,92 – 0,96
Viscosity [mPas] 10-50 30 – 100
Amine Value {mg KOH/g] 550 – 650 450 – 500
Refractory index 1,4850 – 1,4920 1,4920 – 1,5020
Measuring conditions: measured at 25 C / 77 F
EPIKOTE Resin MGS RIMR 935 and EPIKURE Ouring Agent MGS RIMH 936 – 937 Generated. October 23, 2020
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The infosmation provided herein wast . rate at tie time of preparation or prepared from sourmes believed (o be reliable, butit isthe respensbillty of
the user to invesicate and understand city i $s Hic compty with all (ews and procedures applicable 1o the safe handlina and use of the product and to deterring