Negative or positive interaction
Taking a holistic view of materials compatibility, compatibility
problems involve a chemical or a mixture of chemicals as well
as a manufacturing process, a manufacturing environment,
and/or a storage environment. These factors change either the
surface or the bulk material of a product in a manner that is
detrimental to product performance.
Probably all manufacturing processes have the potential
to modify surfaces or product. If the effects are positive, and
if we are aware of those positive effects, the process may be
purposely added to the manufacturing protocol. Sometimes,
however, desirable incompatibility or desirable surface
modification may occur without awareness. The concept of
beneficial contamination, where a surface “contaminant”
1. B. Kanegsberg, “Cost-Effective Cleaning for Quality Thermal
Spray Coating,” Presentation, International Thermal Spray
Association, Orlando, Fla. April 17, 2009.
2. B. Kanegsberg and E. Kanegsberg, “Compatibility,” Clean
Source-The BFK Solutions Newsletter,” July 2013.
3. B. Kanegsberg and M. Chala, “Beneficial Contamination,”
A2C2 Magazine, January 2002.
Barbara Kanegsberg and Ed Kanegsberg (the Cleaning Lady and the
Rocket Scientist) are experienced consultants and educators in critical and
precision cleaning, surface preparation, and contamination control. Their
diverse projects include medical device manufacturing, microelectronics,
optics, and aerospace. Contact: firstname.lastname@example.org