 | ||||
| November 2008 | Courtesy of BEGO USA Bigger May be Better! From time to time ceramic blistering or bubbling problems may be caused from surface contamination on your alloy castings. A lot of laboratories use 50 micron aluminous oxide for their surface cleaning and preparation before porcelain applications. If you are experiencing problems that you believe are related to the alloy's surface contamination, consider switching to a larger abrasive size like 110 micron and lowering the PSI setting. Why switch? Often when you use 50 micron abrasives you are also blasting very small particles (size 15-20 micron) at your surface. There is the chance that these smaller objects can penetrate or get lodged on the surface and cause problems in later ceramic procedures. |
|
|||
 |
By using the larger sized abrasive at a lower PSI setting you can be assured that your surfaces will be cleaner and you will also benefit by getting more mechanical retention for your ceramics. Using this procedure on Non-Precious alloys is a great way to remove stubborn oxides quickly and get an ultra clean surface.
|
 For more information, call your local dealer or BEGO USA, 1.800.342.2346 | |
 |