Before the rubber fendering ingredients, the scales and scales should be nominally first, and the scales should be placed in a horizontal position after being cleared.

Natural rubber, carbon black, calcium powder is weighed with a 100 kg scale scale, accurate to 0.05 kg; zinc oxide, accelerator, softener, anti-aging agent, and other small materials are weighed with a 10 kg scale scale, accurate to 5g.

According to the formulation requirements, accurate weighing; active agent, vulcanizing agent in a container, can not be confused with other small materials; accelerator, anti-aging agent, softener, etc. can be placed in a container; natural rubber, carbon black, calcium powder Large separate placement.

According to different formula requirements of rubber fenders , different types of small materials are placed separately and marked.