Stupid quick Paint/Mylar question

[Rusty Trichome]

There is so much more to just a coat of paint that you fellas have no idea,

Only for those anal enough to really think a few stray reflected lumens will make the difference in their growroom worth the cost of changes to existing conditions. (a closet painted white, for instance)

I used to work for a company that istalled, removed, refinished concrete aircraft hangars, machine shops, warehouses, retail outlets... using a series of coatings. Mainly from a company named Tennant. We used a wide variety of concrete coatings from epoxies to enamels, from standard foot traffic applications to heavy, chemical resistant products capable of handling the heaviest of loads and the consistent scraping of forklift blades.
Proper reflectivity in a store, warehouse or hangar is paramount. When we would apply glossy coatings, often they would have to be chemically sanded to remove that sheen, because of the hot spots in the reflectivity that could actually blind a forklift operator or customers. (glare) If I'm not mistaken, the satin finish dispurses the glare (direct reflections of the light bulb) rather than directly reflecting the light into your eyes. Using this method, companies used less lighting for the same space, and in a safer manner for customer and employees.

My argument is simple...flat is NOT reflective,NOT washable,invites mold and fungus,

Could we get the name of the paint company you work for. Would love to know so I can avoid their products, if this is their performance level. Just because a paint is flat white, does not make it unwashable. It does not promote mold, humidity does. And...it's reflective enough to work fine,

I've used flat white enamel for many years, and yes...it's washable.

As far as Mylar goes...I'd sooner use tin foil if I had to use either. Of course, the tin foil is much cheaper and would be temporary, as I would most definatelly be at Home Depot getting the flat white paint. Perhaps you like to spend your money unnecessarily on products you don't really need, in an effort to what...gain a couple of lumens? Would be much cheaper and worthwhile just buying a side-lighting CFL.

What are the spectrum losses in reflectivity between flat white paint and Mylar? How many supplimental CFL's can a gardener buy versus one roll of Mylar?

Not nearly worth the time, effort or money spent.