White paint, Emergency Blankets or Tyvek?

Rottedroots

Rottedroots

Well-Known Member
It's taken longer than I thought it would but I'm putting the finishing touches on my new space. I've used Mylar in the past as well as paint and I really couldn't make out any differences. Any recommendations on what if anything to put on concrete and plywood walls? TY.
 
Chorse

Chorse

Well-Known Member
Not to dissuade you from using what you have as I probably would but when I first converted my shed....Tin exterior, 6" studs, spray foam insulation, vapor barrier, plywood walls., I also used a Kilz type primer and some flat white on the plywood. I wash/wipe down walls between every grow and after about a year it looked like it needed painting again. I switched to a satin exterior white paint and it has lasted almost 5 years and still look fresh when I wipe it down. Like most exterior paints it also has some mold/mildew protection built in and it never has seemed to affect my yield.
 
Rottedroots

Rottedroots

Well-Known Member
I'll poke around the pile of half cans of paint. I might just have a partial of exterior trim paint. If not I have to get rid of a gallon of OIL based Kilz. Who buys oil based paint anyway. Cheap brushes and rollers and then just throw everything out.
 
Freddie Millergogo

Freddie Millergogo

Well-Known Member
I sort of have done all three. Flat white with primer first, survival blankets and panda plastic white. I read some specs somewhere and flat white and silver are about the same.
 
Freddie Millergogo

Freddie Millergogo

Well-Known Member
Rottedroots said:
I'll poke around the pile of half cans of paint. I might just have a partial of exterior trim paint. If not I have to get rid of a gallon of OIL based Kilz. Who buys oil based paint anyway. Cheap brushes and rollers and then just throw everything out.
Click to expand...
Primer is cheap. I slightly like Zissner more than Kilz but you can also get Glidden or Bear for about the same prices. I actually used some oil based on some plywood recently. It stays tacky way too long.
 
Rottedroots

Rottedroots

Well-Known Member
$16.00 for a gallon of Kilz water based all the way up to $32.00 a gallon Kilz. Needless to say I went with the $16.00. I have a lot of concrete to cover along with the plywood. I was going to break out the muriatic acid to prep the concrete but decided against. That would just be an overkill without a significant reward. I always over build. Still wondering why I put a floor in anyway. Only did it to keep the plants off the concrete to keep their feet warm.
 
GreatwhiteNorth

GreatwhiteNorth

Global Moderator
Staff member
After years of wrestling with panda film trying to get it flat (I'm fkn ocd about that shit) I gave up and just used water based flat white kilz and can't say either one works better than the other, but it is a hell of a lot easier on me to just paint. :cool:
 
nomofatum

nomofatum

Well-Known Member
UVB does not stay UVB after reflecting off a white surface. (it shifts toward the center of the visible spectrum)
White = 85-95% reflective (depending on the specific paint/surface)
Mylar = 98% reflective (and does not shift the colors of light reflected)

There is good reason to never use white, that said, until you reach expert level, you won't notice the difference.
 
Rottedroots

Rottedroots

Well-Known Member
Well here is was thinking I could get rid of the oil based kilz I've had for ages. Mylar or space blankets in the form that I use are a PIA. I can't ever seem to get the stuff to lay flat. I'm assuming the reflective properties of Mylar are quickly compromised by wrinkles. Oh well.. it'll be awhile I guess until I can note any difference between paint and mylar so WTH.
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
if i was going to use mylar, i'd go to the hardware store and get some spray adhesive, like they use for car headliners. they have it in diferent strength, you can get the weak stuff so you can pull the mylar off later, its still plenty strong to hold mylar film
 
Aeroknow

Aeroknow

Well-Known Member
Black/white poly/Panda film.

GreatwhiteNorth said:
After years of wrestling with panda film trying to get it flat (I'm fkn ocd about that shit) I gave up and just used water based flat white kilz and can't say either one works better than the other, but it is a hell of a lot easier on me to just paint. :cool:
Click to expand...
I hear you about the ocd lol.
Part of my trade was to wrap a building with different materials so I've gotten pretty good about it. It will never be perfect. Painted walls, imo, get thrashed from foliar spraying shit etc.

The most rewarding part of building a new growroom is applying the panda film IMo.
 
Last edited:
GreatwhiteNorth

GreatwhiteNorth

Global Moderator
Staff member
Roger A. Shrubber said:
if i was going to use mylar, i'd go to the hardware store and get some spray adhesive, like they use for car headliners. they have it in diferent strength, you can get the weak stuff so you can pull the mylar off later, its still plenty strong to hold mylar film
Click to expand...
I'd be an absolute basket case with mylar AND sticky shit on the walls.

tearing-your-hair-out.jpg
 
You must log in or register to reply here.
Top