Dear Joslyn,
I’m looking at color options for thermoformed parts. There are so many to choose from, but I don’t know if I should opt for a custom-colored sheet or painted parts. What do you suggest?
-Roy G. Biv
Dear Mr. Biv,
You’re right – the color choices are seemingly endless. Pantone offers thousands and most can be color matched for your application. You’ll need to consider the pros and cons of each process to determine the best choice for your product. We’ve put together a quick comparison to get you started.
Custom Color Paint
Pros
- Less restrictive production process; any imperfections can be sanded out prior to paint application
- Easy to clean
- Stain and chemical resistance
- Ability to have multiple colors on one part
- More finish options, including automotive specifications
- Parts can be “touched up” if damaged by the end user
Cons
- Production lead time increases due to added days for paint process
- Custom colors can be costly and must go through a color match process
- Extra caution is required during shipping and handling
- Adhesion may become an issue with certain materials, so surface prep is necessary
- Paint may crack under stress
- If paint is scratched, base layer color of plastic may become visible
- Paint curing process may warp the parts
Custom Color Material
Pros
- No extra processing; sheet can be formed and trimmed as is
- UV protection can be added directly into the sheet
- Often less expensive than painting
- Some materials can be chemical resistant
- Many color options, including chrome, films, patterns, etc.
Cons
- Material minimums are often high, which is not cost efficient for small production runs
- Must go through a color match process, which can take a few weeks
- Color variations may occur from run to run
- May be difficult to get an exact match on certain colors and gloss levels
- End color may appear different on each type of material (ABS vs. HDPE, etc.)
-Joslyn Manufacturing