How do I paint fully cured Foam-iT! rigid foam and FlexFoam-iT! flexible foam?

Article courtesy of Smooth-On, Inc.

To Paint Foam-iT! Rigid Foam: You can prime and paint the cured surface of rigid foams in the same way that you would cured resin. First prime the casting using 1-2 coats of a high quality auto body primer followed by acrylic enamel paints.

To Paint FlexFoam-iT! Flexible Foam: If you attempt to paint a flexible foam with a standard latex or acrylic paint, the painted surface could crack when the flexible foam part is flexed. You need a paint that will bend and flex with the flexible foam. UreCoat™ is easily colored with SO-Strong™, UVO™ or Ignite™ colorants to create a permanent paint for coating cured Smooth-On urethane rubbers or flexible foams. In addition, some customers have used our Brush-On 40 urethane rubber thinned with a small amount of mineral spirits as a paint. It is easily color pigmented with SO-Strong color tints. You can also paint the cured surface of flexible foam with fabric paint or flexible acrylic enamel paints. You must make sure the paint adheres to the foam and is flexible after it dries.

Disclaimer

This FAQ article is offered as a guideline and offers possible solutions to problems encountered during mold making and casting. No warranty is implied and it is up to the end user to determine suitability for any specific application. Always refer to the provided Technical Bulletins (TB) & Safety Data Sheets (SDS) before using any material. A small scale test is suggested to determine suitability of any recommendation before trying on a larger scale for any application.