After the rubber is vulcanized, there are always some bubbles on the surface of the sample, with different sizes. After cutting, there are a few bubbles in the middle of the sample.

Analysis of the causes of bubbles on the surface of rubber products.

Solution:

Improve vulcanization pressure and time

  1. Extend the vulcanization time or increase the vulcanization speed.
  2. Pass several times before vulcanization.
  3. Exhaust more frequently during vulcanization.

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