Rosco Matte Black Cinefoil, 24-Inch x 25 feet Roll

Well, never mind why, but can you paint this stuff? If anyone has, is there a type of paint that's better than other types?

Hello, I want to buy 50 units of 24”x25” ( 60cm x 7.6m). Do you have in on stock ? Thank you

is this black on both sides?

Can i use this product to keep air and heat from entering the windows and keeping my house dark?