Not to resurrect a dead subject, but...
Can closed cell foam be painted?
I have OCD when it comes to using plastics (and aluminum) in our props. I love the idea of making it once, storing it off season and having it work without additional effort the following season. Closed cell foams durability and flexibility makes this stuff ideal for damp, long term storage (without the present of light- as it is stored in our somewhat damp basement).
Open cell is an option but it is more subject to the wear and tear of each usage.
I would like to make a sign outta this stuff, paint it, make it flexible and water resistant.
Anyone had experience doing anything like this??