Cerakote is a popular choice for firearm finishes and other applications due to its durability and aesthetic versatility. But what happens when you want to change the color or finish of an already Cerakoted item? Can you Cerakote over Cerakote? The short answer is yes, but with important caveats. This guide will delve into the intricacies of this process, helping you achieve professional-looking results.
Preparing for a Cerakote Over Cerakote Application
Before you even think about spraying, proper preparation is paramount. A successful second Cerakote application hinges on a meticulously prepared surface. Ignoring this step can lead to peeling, chipping, and an overall unsatisfactory finish.
1. Assessing the Existing Cerakote
First, thoroughly inspect the existing Cerakote finish. Look for any signs of damage, such as chips, scratches, or wear. These imperfections will need to be addressed before proceeding. Minor imperfections can often be addressed with fine-grit sandpaper, but significant damage may necessitate a complete stripping of the original Cerakote.
2. Cleaning the Surface
Regardless of the condition of the existing Cerakote, a meticulous cleaning is crucial. Use a degreaser specifically designed for Cerakote preparation to remove any oils, dirt, or contaminants that could compromise adhesion. Multiple cleaning cycles are often necessary to ensure a perfectly clean surface. Allow the item to fully dry after cleaning.
3. Surface Preparation (The Key to Success)
This step is critical. If the original Cerakote is in good condition with minimal wear, light sanding with 320-grit sandpaper may be sufficient to create a slightly roughened surface for better adhesion. Avoid over-sanding, as this can damage the underlying material. After sanding, thoroughly clean the surface again to remove any sanding dust.
If the original Cerakote is damaged or shows significant wear, consider using a higher grit sandpaper (e.g., 180-grit) to remove the damaged areas. Remember, the goal is to create a clean, uniform surface for the new Cerakote application. Always follow the manufacturer's recommendations for surface preparation.
Applying the New Cerakote Layer
Once the surface is impeccably prepared, you can proceed with the application of the new Cerakote layer. The application process itself is similar to applying Cerakote to a bare surface.
1. Proper Ventilation
Ensure you work in a well-ventilated area, ideally a dedicated spray booth or a space with excellent ventilation and appropriate respiratory protection (mask). Cerakote fumes can be harmful if inhaled.
2. Thin Coats
Apply multiple thin coats of Cerakote rather than one thick coat. This allows for better flow and minimizes the risk of runs and sags. Allow ample drying time between coats, following the manufacturer's instructions.
3. Curing
After the final coat, allow the Cerakote to cure completely according to the manufacturer's recommendations. This usually involves a specific temperature and time frame. Improper curing can lead to a weakened finish.
Potential Challenges and Solutions
While Cerakoting over Cerakote is possible, some challenges might arise.
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Poor Adhesion: The most common problem is poor adhesion. This is almost always due to inadequate surface preparation. Ensure you thoroughly clean and prepare the surface before applying the new coat.
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Color Bleeding: In some instances, the underlying color might bleed through the new coat. This is more likely if the new coat is significantly lighter than the original. Consider applying a primer or multiple thin coats of the new color to prevent this.
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Peeling or Chipping: Again, this points to insufficient surface preparation. Make sure you follow the steps outlined above to avoid this issue.
Conclusion
Cerakoting over Cerakote is feasible, but requires precision and attention to detail. By meticulously preparing the surface and following the manufacturer's instructions, you can achieve a durable and aesthetically pleasing finish. Remember that thorough preparation is the key to success. If you are unsure about any step of the process, it's always best to consult the Cerakote manufacturer's instructions or seek advice from experienced Cerakoters.
