Handbook Page 21
Questions & Answers
- Can I mark round parts?
Yes, by rolling on the bench marker or by using the contour blocks.
- Can I mark plated parts?
Yes, as long as the part conducts electricity.
- Can I mark anodized parts?
Not after they are anodized. Mark deep before anodizing and the mark will show through.
- What type of repairs will be needed on the power unit?
Units rarely come in for repair. However, when they do, we do not charge for "bench time".
- Can I mark black oxided surfaces?
Yes, in most cases using low voltage, high pressure, and proper electrolytes.
- Can I mark Parkerized parts?
In most cases, no.
- Is the electrolyte harmful?
No. It may stain clothes, but will wash out. If you swallow it, consult the Material Safety Data Sheet, drink lots of water, and see a doctor.
- How deep can I go?
An AC mark is around .0003 inches deep. A DC etch can go as deep as .008 - .009 inches, but generally .001 inches is considered deep.
- What is an etch?
An etch is usually a DC mark that is white or frosted. The dark mark is a combination of an etch and a plate.
- How long will a stencil last?
Depending on the kind, the use, the configuration, and the depth required you can get from one to thousands of impressions.
- Can I make my own stencils?
Yes, by using a typewriter or dot-matrix printer on the die impression stencils.
- How clean does the surface of the part have to be before marking?
Just free of sharp particles that would cut the stencil. Cleaning with light oil is fine.
- How rough a surface can you mark on?
A reasonably smooth forged or cast surface.
- Will this method of marking cause corrosion?
Yes, if the metal salts in the electrolyte aren't removed from the part.
- How well does this mark stand up in a salt spray test?
- Who do I contact with questions or problems?
Please contact us at IMG-Electromark:
Toll free: 1.800.775.3824
I.M.G. of Utica, Inc.
206 Kossuth Ave.
PO Box 379
Utica, NY 13501
State of the Mark