are you kidding? whats hard about cleaning mylar? it couldn't be easier to take a cloth and wipe it like you would clean a window! also its only £1.50($3) for a 2 meter x 1 meter piece. once you put a damp cloth on to white matt paint it looks crap and marks,
also he never asked about water, meduim, nutes, atmopher and temp,
exactly my point he never ASKED becasue hes asking the wrong question so im helping him redirect his attention to something that matters...... reflectivity is not something to worry when your grow is not on point.....worrying about refectivity and Co2 and topping techneqies and etc etc are all secondary issues that arent as important as the main factors......
When poeple come into the hydro store and ask me which is better mylar or panda film..... instead of telling them which is better i ask them stuff like "well are you Phing your water??" becasue most of the time people who ask questions like that dont know what there doing in general and they need someone to help them focus on whats really important..... so when they say "no whats ph" i say ok so lets not worry about mylar vs panda lets teach you how to grow first then worry about stupid little things like mylar vs panda vs white paint.......
SO since he dosent know even simple things like mylar and panda its only comin ssense to assume hes going to have far more serious issues........ Bascially what im saying is ive never seen a grow make or break from its reflectivity.........
Further more i wipe clean my painted white walls all the time and it still looks the same as when i painted it..... You must be using the wrong paint or someting......further more out of all the options maylar is not the easyest user friendly option at all.....maybe the new style is better but to say its user friendly over panda film or white paint im sorry i disagree with you on that one.....