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The curing polyester resins at room temperature is usually not possible with only the organic peroxide - gelation takes place too slowly and, therefore, we add to the resin cobalt accelerator. This compound helps to increase the rate of gelation and improve process control. When applying hardeners: methyl ethyl ketone peroxides -eg. Metox, cyclohexanone -eg. Cetox, or acetylacetone, we recommend the use of cobalt Accelerator. Never add cobalt to hardener, always to the resin.
Sometimes it takes an additional compound called promoter - eg. N, N-dimethylaniline or N, N-diethyl acetoacetamide.
This combination is used when:
We offer Cobalt Accelerators of any content of cobalt, according to the customer's needs. We present the most frequently used: 10%; 6% 2% and 1% Co.
Curing system methyl ethyl ketone peroxide / cobalt accelerator can be briefly described: