A. The main reasons for the agglomeration of the compounding agent are: insufficient plasticization of the raw rubber; Excessive roller pitch; Excessive adhesive capacity; Excessive roller temperature; The powdered compound contains coarse particles or clusters;

B. Reasons for high or low specific gravity or uneven distribution: Inaccurate weighing of the blending agent, incorrect mixing, missing mixing, incorrect addition or omission during mixing.

C. Frosting is mainly caused by the excessive use of certain additives, which exceed their solubility in rubber at room temperature. When there is too much white filling, white matter will also spray out, which is called powder spraying.

D. The hardness is too high, too low, and uneven due to inaccurate weighing of vulcanizing agents, accelerators, softeners, reinforcing agents, and raw rubber, as well as incorrect or omitted addition. Uneven mixing results in uneven hardness.

Burn: The early vulcanization phenomenon of rubber materials. Reason: Improper combination of additives; Improper rubber mixing operation; Improper cooling and parking; Climate impact, etc.

General purpose precipitated type silicone rubber for extrusion