Does Spray Foam Need To Be Painted. Painting over spray foam insulation is not a straightforward undertaking. This includes foam board spray foam icf blocks and any other foamed plastic products. These are the only ignition barriers.
Recently i had my cellar a crawl space professionally sprayed with closed cell foam. The crawl space is difficult to work in and they company has offered me several hundred dollars discount to leave it unpainted.
This liquid foam sprays out of a can through a straw directed exactly where you want to fill gaps.
The company was supposed to return to spray on fire retardant paint. Other options include monocote z 3306 a cementitious spray on product and dc315 an intumescent paint product. Generally speaking most of the latex or water based paints will work well with the foam. Fill cracks in your home quickly with great stuff insulating foam sealant.