I used Ultraflect for years and loved it...
good luck..



inkognyto

all ways use flat white paint ive used it for years and get dam good results

I'm not sure it's a 'most beneficial' thing, to me it's a 'more effective/more efficacious' thing. To that end, flat white paint, the white side of the insulation sheets, and that OSB that comes with a silvered side all work for me.

Matte white paint is what I use. Easy to clean. JK

kilz white primer it will help control any enviormental issues such as mold mildew or go to home depot and spend 30 buks on there silver insulation its got bubble wrap in the center and ir blocker for the next layer and then its wrapped in silver reflective material and is about 8th to quarter inch thick

best to use is TITANIUM white,expensive.any paint,white of course,with anti mold good.
maylar sucks it absorbs too much lite.

I set up mylar curtains the last run and it improved the side buds tremendously.

MASSES 420KING said:

kilz white primer it will help control any enviormental issues such as mold mildew or go to home depot and spend 30 buks on there silver insulation its got bubble wrap in the center and ir blocker for the next layer and then its wrapped in silver reflective material and is about 8th to quarter inch thick

Click to expand...

That's a fantastic tip, thank you. Especially because I have something like 7 gallons of that stuff leftover from a home remodel/repaint and I never returned the unopened bucket. Probably needs to be remixed, it's a few years old.

666elsie said:

best to use is TITANIUM white,expensive.any paint,white of course,with anti mold good.
maylar sucks it absorbs too much lite.

Click to expand...

mylar aka PET film aka biaxially-oriented polyethylene terephthalate aka boPET- reflects 99% of the light. in terms of reflection it is the best. but it sucks to hang, gets dirty easy when using foliars, will fade if you clean it, can tear, etc etc. a nice flat white paint is so much easier to scale.

just learned of this

ORCA Grow Film™ provides the following unique advantages over traditional reflective foils:


99% Diffuse Surface: Microfiber structure creates even light distribution across material surface regardless of incident angle of light. The resulting isotropic surface luminance eliminates hot spots and does not require surface to be hung flat during installation.

- Diffuse vs. Specular and Why diffuse reflection matters.

Highly Reflective Surface: Measured at 94% reflectivity across the full visible light spectrum. ORCA Grow Film™ is the highest performing reflective surface in the hydroponic industry.

- Performance comparison

- What does full visible light spectrum mean and why does it matter?

Thermally Reflecting: High infrared reflectance keeps heat where it should be. (More)
100% Light Tight.
No Color Shift or Iridesince: Light reflected from surface maintains the original color wavelength so you get the full spectrum from your lamps. (More)
Durable, puncture and tear resistance: 11 mil thick
Waterproof Washable & cleanable with common household cleaners:
Mold and algae growth resistant.
UV Protected and Stable: Blocks out harmful UV light with wavelength below 400nm, material does not yellow. (More)
Recyclable eco-friendly material containing no halogens, plasticizers or VOCs.
Made in Canada
here they compare Orca to most of the other brands of film and theres no comparison !

http://www.youtube.com/watch?v=GEge3XNg9CQ





http://www.youtube.com/watch?v=c020_4EdIW0





http://www.orcagrowfilm.com/default.asp






:yes

ent said:

mylar aka PET film aka biaxially-oriented polyethylene terephthalate aka boPET- reflects 99% of the light. in terms of reflection it is the best. but it sucks to hang, gets dirty easy when using foliars, will fade if you clean it, can tear, etc etc. a nice flat white paint is so much easier to scale.

Click to expand...

I doubt mylar will increase the yield anyway, white paint is the best imo

I'm in the flat white paint camp also. Considered the reflectix UV blocking stuff but then I saw a grow where, because of the humidity, mold grew btw. the wall and the reflectix. No thanks...