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Painting foam board can be challenging. Here are a few tips for getting the best results when painting your foam board aircraft.
Painting with an aerosol spray paint will work, but be sure to spray on using light coats and you will need to be in a well ventilated area.
Though it's more of an investment, an airbrush is a better option.
A dual-action airbrush will be the best option because it allows you to vary the amount of paint your spray.
We found that the better (more expensive) airbrush paint worked the best for us, because it had more pigment and covered the foam much faster using less coats.
Here's a basic color wheel showing some samples of the colors created by mixing basic prime colors.
When mixing paint, it's good to have more than you need so you can be sure to have consistent colors on your plane. One trick we found that works well is to use old water bottles to mix and store your paint.
We also found that Windex is a good option to thin out your paint. Online sources recommend a 1:1 ratio, but Chad found that a 2:1 ratio seems to work best. (2 parts paint to 1 part Windex)
Another option for sealing the foam board from moister and giving you a better paint surface is to use Minwax.
**Don't use the water-based version.
Coat your foam board with Minwax and wipe off the excess and it soak into the paper and water proof it.Be sure to alway test any methods or paints on scrap foam. Test methods, paints, and painting styles and find what works best for you... and share it!
The Forum is a great place to join in on the discussion, ask questions and share what you've learned!!