Kramer Industries, Inc. Mass Finishing Equipment and Supplies. 1-888-515-9443 Home Home Home ShopTalk Blog Search Help Cart Contact
Right From The Start - Call us at 1-888-515-9443
ShopTalk Forum

Surface Finish for Tungsten Disulfide Impinge Blasting

Discussions about vibratory finishing processes, equipment and techniques.

Surface Finish for Tungsten Disulfide Impinge Blasting

Postby bmech211 » Thu Aug 27, 2015 11:48 am

Greetings board members:

I am in the process of treating internal engine parts with a variety of coatings, one of which is 0.5 micron Tungsten Disulfide. I am using the MIL-SPEC as my application guide, and it states that the parts must be treated with 5 micron aluminum oxide powder prior to impinge blasting.

I would like to know if I can mix the powder with crushed walnut shells and tumble the parts that will be coated? They are all a mix of aluminum (pistons) and alloy steel (cam sprockets, hubs, spline shafts, etc.).

Thanks in advance for the feedback.
Posts: 1
Joined: Thu Aug 27, 2015 11:34 am

Re: Surface Finish for Tungsten Disulfide Impinge Blasting

Postby emkayss » Thu Aug 27, 2015 3:14 pm

A 5 micron size is equivalent to about a 1200 Mesh Aluminum Oxide Grit. This can be blended with Walnut Shell Grit but not sure of the results as I am unfamiliar with your application.
Posts: 217
Joined: Mon Mar 24, 2003 9:16 pm

Return to Vibratory Finishing

  • Barrel Finishing Systems
  • Vibratory Finsihing Systems
  • Blasting Systems
  • Abrasive Media
  • Tumbling Media
  • Chemical Compounds
  • Parts Separating Systems
  • KramerThinksGreen
  • Finishing Guides
  • Applications
  • Newsworthy
  • Repairs and Services
  • Material Safety Data Sheets
  • Catalog
  • Ordering Information
  • Guarantee
  • Newsletter
  • About Kramer
  • Contact Us
  • We specialize in customizing systems, products and procedures. There are many options and custom systems available. If you don't see something on our web site, please contact us.


  • Secured by Rapid SSL. 128 bit SSL Security. $10,000 Warranty.