It depends on the customers’ requirements and weather condition.
According to our national standard, there is at least 5% CaCO3 in CPE 135A. 5% CaCO3 can help CPE 135A avoid blocking problem at normal temperature while keep its good quality.
But if the temperature very high, like in summer, we suggest to add more CaCO3 inside. Otherwise, it is easy to have agglomeration problem.
