Printed Board Type: R/F/W/C
Skill Level: Intermediate
Conformance Level: High
Revision: C
Revision Date: Jul 1, 1997

OUTLINE
This method can be used to add, change or replace legend and markings on printed boards or printed board assemblies. This method uses epoxy ink and a pen to hand letter the legends on the printed board surface.

Damaged Legend

PROCEDURE

1. Clean the area.
   
   

2. Figure 1: Apply legend using a wood stick dipped in epoxy ink.

   Scrape off any remaining character or legend with a knife and clean the area.
   
   CAUTION
   Abrasion operations can generate electrostatic charges.
   
   
3. Mix the epoxy ink. White is the most common color.
   
   
4. Sharpen a wood stick and dip the pointed end into the epoxy ink. Hand letter the legend or markings as needed.
   
   
5. Cure the epoxy ink per the manufacturer's instructions.

EVALUATION

Figure 2: Completed legend repair.