CUROX ? SOLAR FC1 is a colorless, flowable liquid composed primarily of technically pure tert-butyl peroxy-(2-ethylhexyl) carbonate. It is a peroxycarbonate with advantages in thermal stability and is mainly used for crosslinking ethylene vinyl acetate copolymers (EVA), especially for photovoltaic applications.

Technical data

• Appearance: colorless
• Peroxide content: approx. 99% w/w
• Active oxygen content: approx. 6.43% w/w
• No inhibitors
• Density (20°C): approx. 0.93 g/cm3
• Hazen maximum: 30 Hz
• Viscosity (20°C): approx. 6 mPa-s
• Refractive index (20°C): approx. 1.428
• Critical temperature (SADT): approx. 70°C
• Refrigeration stability: liquid below -30°C
• Recommended storage temperature: not more than 30°C
• Storage stability after delivery date (measured): 6 months

appliance

• EVA crosslinker: For crosslinking of ethylene vinyl acetate copolymers (EVA), also in combination with other peroxides with different activities.
• Lamination temperature range: 135 - 165°C.
• Advantages: liquid, easy dosing, mixable with other peroxides, low Hazen number and high purity, avoids any discoloration effect.

working (of machinery)

• As a low-viscosity liquid peroxide, CUROX ? SOLAR FC1 can be pre-mixed with EVA in a drum mixer or belt mixer, or added directly to the hopper or metering area of an extruder for thermoplastic materials.
• Due to the low softening temperature (below 100°C) of the special encapsulated EVA types, CUROX ? SOLAR peroxides are sufficiently thermally stable during the extrusion process.
• The resulting composite material (encapsulated sheet) has long-term stability at room temperature, ensuring consistent quality over time.
• The vacuum lamination and cross-linking process is usually carried out at about 145°C. The amount of peroxide depends on the other formulation components and can vary from 0.5 - 2% w/w on an EVA basis (see Table 1).
• Temperature deviations have a significant effect on the crosslinking rate and may affect the final crosslinking rate.
• CUROX ? SOLAR FC1 can be used in combination with CUROX ? SOLAR SC. In this case, the vacuum lamination/crosslinking temperature should be adjusted to the higher thermal stability of CUROX ? SOLAR SC.

wrap

• CUROX ? SOLAR FC1 comes standard in 25 kg (55.12 lb) polyethylene cans.

statement denying or limiting responsibility

• The information provided and all further technical advice reflects our existing knowledge and experience based on in-house testing of local raw materials and is intended to provide information about our products and applications.
• This information should not be construed as a guarantee of the specific performance of the product described or its suitability for a particular application, nor should it be considered as providing instructions for use.
• This information gives no warranty as to product and shelf-life performance, and no liability is assumed for the use of any information provided, including in relation to existing third-party intellectual property rights (in particular patents).
• We reserve the right to make any changes based on technological advances or further developments.
• Applications that use our products based on our technical recommendations are beyond our control and are solely the responsibility of the user.
• The user is not relieved of the obligation to carry out careful inspection and testing to verify the suitability of the incoming goods for the intended application.