Question about reflective backgrounds

Im wondering what to use for a reflective material or paint that I can use. Ive heard mixed reviews on types of mylar and paint so any help. its for a grow box 5x2x3.
 

Ilovebush

Well-Known Member
Flat white paint is much cheaper and has good reflectivity at about 85% of incident light. Mylar is more efficient at about 95% which would not necessarily be justified by the significantly greater cost.
 

Slipon

Well-Known Member
not according to my light meter

DSC00850.jpgDSC00855.jpgDSC00853.jpg

atleast 2-3x as reflectiv as flat white

if you for some reason cant get the maylor, then look for them emergency plackets or ice covers for car windows
 
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