Wet film coating sand

Wet film coating sand

CN
  • CN 1,175,946 C
  • Filed: 06/13/2000
  • Issued: 11/17/2004
  • Est. Priority Date: 06/13/2000
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of wet film coating sand, it comprises roughing sand, resinoid bond, curing agent, it is characterized in that, also includes the machine oil ester in this precoated sand, the ratio of its addition and roughing sand is counted 0.01-0.5 by weight:

  • 100.

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