Hello HJL and JWR,
Regarding spray painting cloth, this article [1] shows that spray painting cloth with [ultra-flat] camouflage Krylon paint actually reduces its near infrared reflectivity.
Can your readers comment? I have spray painted surplus UCP camo with a light, even coat of brown camo paint, making it look very dirty, similar to an ATACS pattern. This would seem to be a cheap option for those of us on a budget. – EP