ARALDITE® F / ARALDITE® CY 208 / HARDENER HY 956

• The flexibility of castings can be adapted to requirements by combining
• Araldit F and CY 208 resin in various proportions
• Low tendency to cracking

Encapsulating or potting of low voltage and electronic components

The resin component should be stirred and homogenized in the original container before use. The casting mix is best prepared by heating the resin up to 40-50°C before stirring in the hardener. Brief degassing of the mix under 5-10 mbar vacuum improves the mixture homogeneity and enhances the dielectric properties of the castings.

The very low viscosity Araldite CY 208 provides flexible castings, whereas the medium viscosity Araldite F provides more rigid castings. The viscosity of the casting mix and/or the hardness of the castings can be varied by adjusting the mix ratio of the two resins. Premixes of the two resins have a shelf life at room temperature of several months.

To reduce the curing time, the casting is often gelled at room temperature and then post-cured for 2-6 hours at 60-80°C. Small castings can be processed and directly cured at slightly higher temperatures (40-60°C). Temperature exothermic rise on curing (e.g. at higher curing temperatures or/and large casting volumina) can be kept within acceptable limits by adding fillers to the mix.

Casting

Contamination of the eyes by resin, hardener or casting mix should be treated immediately by flushing with clean, running water for 10 to 15 minutes. A doctor should then be consulted. Material smeared or splashed on the skin should be dabbed off, and the contaminated area then washed and treated with a cleansing cream (see above). A doctor should be consulted in the event of severe irritation or burns. Contaminated clothing should be changed immediately. Anyone taken ill after inhaling vapours should be moved out of doors immediately. In all cases of doubt call for medical assistance.

Safety precautions at workplace:    Yes/Essential/Recommended
protective clothing : yes
gloves : essential
arm protectors : recommended when skin contact likely
goggles/safety glasses : yes
respirator/dust mask : recommended
Skin protection    
before starting work : Apply barrier cream to exposed skin
after washing : Apply barrier or nourishing cream

cleansing of contaminated : skin dab off with absorbent paper Wash with warm water and alkali-free soap, then dry with disposable towels. Do not use solvents
Clean shop requirements : Cover workbenches, etc.    with light coloured paper. Use disposable beakers, etc.
Disposal of spillage : Soak up with sawdust or cotton waste and deposit in plastic-lined bin
Ventilation:    
of workshop :Renew air 3 to 5 times an hour
of workplace : Exhaust fans. Operatives should avoid inhaling vapours.

Mandatory and recommended industrial hygiene procedures should be followed when-ever our products are being handled and processed. For additional information please consult the corresponding Safety Data Sheets and the brochure “Hygienic precautions for handling plastics products”.

Store the components in a dry place at 18-25°C, in tightly sealed original containers. Under these conditions, the shelf life will correspond to the expiry date stated on the label. After this date, the product may be processed only after reanalysis. Partly emptied containers should be tightly closed immediately after use.

For information on waste disposal and hazardous products of decomposition in the event of a fire, refer to the Material Safety Data Sheets (MSDS) for these particular products.