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What’s the difference between Dasheng Heat Shrinkable Sleeve and Covalence Heat Shrink Sleeves

 

Covalence(used brand Raychem) is the leader manufacturer of heat shrinkable sleeve. We all go through Raychem catalogue technical data.   Comparing with Raychem sleeve, we mainly have following points need to make up our sleeve:

  1. Raychem use HDPE for their sleeve, so their dielectric strength is 35KG, Shore D harness is 55.    Dasheng data is 20KV and 48 Shore D.
  2. Low temperature flexibility for Raychem sleeve is -25C.  Dasheng is -15C.
  3. Raychem sleeve surface has embossed design.   (Dasheng has sold the embossing roller together with extension line.) I said we had given up because the embossment cannot reflect the adhesive melting status when PE thickness changed.
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