ARALDITE® CW 6360 / ARADUR® HW 6370

• Easy handling combined with long usage time at moderate temperature.
• Reactivity adjusted for large volume casting.
• High resistance to leakage current and arc flash.
• High erosion resistance even under strong UV radiation.
• High stability in humid environments.
• Insulating material with excellent performance in outdoor applications.

• Outdoor electrical insulators for current and power transformers
• Equipment components
• Bushings
• Line posts and pin insulators for medium voltage.
• Medium and high voltage insulation components for indoor use in humid environments.

Property measured in standardized test specimens at 23°C with curing of 2h at 100°C + 16h at 140°C.

These are related to the mechanical and thermal behavior of the material, such as resistance, elasticity, deformation, and thermal properties.

Property measured in standardized test specimens at 23°C with curing of 2h at 100°C + 16h at 140°C.

These are related to the material's response to electric fields and to insulation behavior, tracking resistance, and dielectric characteristics.

Conventional encapsulation by gravity under vacuum.
Automatic pressure gelation process (APG).

• Pre-filled liquid components may exhibit slight sedimentation of the charge.
• Before use, it is recommended to mix the components carefully at a temperature of approx. 50°C.
• Aradur® HW 6370 BR hardener is sensitive to moisture. Partially used containers should be closed immediately after use. Nitrogen blanketing is highly recommended as well as the use of a desiccant venting device unless the material is going to be used rapidly after opening.

Specific Instructions

• The pot life of the mixture is approximately 1-2 days at a temperature < 25°C. In order to minimize the increase in viscosity, any remaining mixture at the end of a work shift or weekend should be diluted with the Resin component. The diluted mixture should be activated with the other components immediately before work is resumed. Pre-filled components or casting mixtures contained in the pipelines should be cooled immediately after work is finished to prevent sedimentation and/or unwanted increases in viscosity. This helps to minimize material losses and cleaning work.
• For the APG process, an adaptation of the reactivity is made with the accelerator DY062 (ca.0.2 pp). In this case, the usage time will be reduced.

Molding Temperature

Demolding Time (Depends on mold temperature and casting volume).

Curing conditions

General instructions for preparing liquid resin systems

• The pre-loaded system, in addition to providing a long service life, makes it possible to reduce mixing time considerably. Components must be mixed under vacuum at a slightly elevated temperature (50-60°C).
• For mixing medium and high viscosity casting resin systems and for mixing at reduced temperatures, we recommend the use of special thin film degassing mixers which can produce an additional self-heating of 10- 15°C as a result of friction.
• The mixing time under vacuum of 2 to 8mbar can vary from 0.5 to 1.5 hours, depending on the amount of material, mixing equipment, temperature and application purpose.
• The pre-mixed components are packaged according to their mixing ratios and can be used in the form of one container of resin for one container of hardener. In the event of sedimentation of the load, it is necessary to completely empty each container. For partial use of the resin and hardener, the contents of both containers must be carefully homogenized at a temperature of 50 to 60°C. This procedure avoids problems in the mixing ratio, resulting from possible sedimentation of the mineral load. The same preheating procedure is recommended when unloading the product.
• In automatic feeding and mixing plants, both components must be degassed and homogenized for at least 45 minutes under a vacuum of approx. 3 to 5 mbar in the respective storage tanks. The mineral-filled products must be stirred from time to time to prevent possible sedimentation and uneven dosing. After dosing and mixing with a static mixer, the system is transported directly to the vacuum casting chamber at 10 to 15 mbar or, in the case of the automatic pressure gelling process, directly to the heated mold. Several individual casting stations can be served via a feeding tube.

• An empty drum and/or other type of packaging that contains an epoxy resin or hardener must be handled with the same precautions as the original product, and disposal must comply with applicable legal requirements.
• In the event of a chemical spill on the ground, it must be contained immediately to prevent contamination of the soil and/or water. Any type of discharge into the environment must be avoided.

• Eye contamination by resin, hardener or mixture should be treated immediately with running water for 10 to 15 minutes. A doctor should be consulted immediately.
• Material spilled or splashed onto the skin should be removed from the contaminated area and then washed and treated for cleanliness (see above). A doctor should be consulted in the event of severe irritation or burns.
• Contaminated clothing should be changed immediately.
• If you feel unwell after inhaling vapors, you should immediately move out of the area. If you have any questions, contact your doctor.

To determine if the curing/crosslinking of the system is complete and if the final properties have reached the ideal stage, it is necessary to perform relevant measurements on the piece in question or measure the glass transition temperature (TG) or hardness (Shore A/D). Changes in gelation and curing cycles during the manufacturing process may result in differences in the crosslinking and glass transition temperature (TG) of the system.

• Store products preferably in their original, fully sealed packaging. Under these conditions, the shelf life of material is 12 months from the date of manufacture. After this date, the product should only be processed after undergoing a new analysis.
• Recommended storage temperature: 28°C.
• Partially used containers must be sealed immediately after use.