How to distinguish the appearance of the material on the mechanical seal parts
During the use of the seals, we all encounter how to visually distinguish whether the rubber on the seal is NBR or Viton, whether the static ring and the transition are SIC or CA.
Methods as below:
1 NBR's material is usually harder, the brightness will be brighter; Viton's material is usually softer, and the brightness is a little bit brighter. From the smell, NBR will taste more than Viton.
2 The color of the SIC is gray, the color of the CA is deep black, the polishing brightness of the SIC is brighter than that of the CA, and the hardness of the SIC is stronger than that of the CA.
Understand the above can better grasp the use of seals and material selection
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