AlwaysFUBAR
Well-Known Member
Is there a good way to get the hard water stains off mylar without damaging it?
Mylar water stains
- Thread starter AlwaysFUBAR
- Start date
AlwaysFUBAR
Well-Known Member
Nothing, no ideas????????
cousinvenny
Member
Hot water and rag., little chlorine bleach added will disinfect the area also.
Venny.
Venny.
strangerdude562
Well-Known Member
windex or water, it ain't rocket science man.
AlwaysFUBAR
Well-Known Member
i tried windex and it fogged it
AlwaysFUBAR
Well-Known Member
i also tried some rubbing alcohol and that did ok
old pothead
Well-Known Member
CLR is made to remove hard water stains.It is safe to use in my coffee pot,so it should be good for your mylar.OPH
TeaTreeOil
Well-Known Member
Windex is bad for aluminum.... You could try aluminum polish(in the car aisles).
SlikWiLL13
Well-Known Member
i would tear that shit down and paint it flat white and never worry about it again. mylar is for the birds.
strangerdude562
Well-Known Member
yes, mylar is a bitch to deal with. I could never cut the perfect size which got me so damn mad, glossy white is your friend.
SlikWiLL13
Well-Known Member
no, glossy is bad....you want flat white paint. ceiling paint is the best, its designed to reflect light.
aside from it getting dirty and losing its reflectivity, it has to be installed without and wrinkles or it creates hot spots.
FLAT white paint is the easiest way to go.
TeaTreeOil
Well-Known Member
It's designed to diffuse light.... Far from best form of reflection.
Wrinkles do not create hot spots. They decrease specular reflectivity(conversing increasing scattering/diffusion). Which decreases the chance of 'hot spots'. The best way to create a 'hot spot' is a parabolic reflector. I doubt anyone is making anywhere near the perfect parabola you'd need to actually focus enough radiance with high enough intensity to burn anything.
Flat white paint is certainly easy, not very efficient at reflecting intense(like, the same intensity that strikes it) light though. It does spread light and lower peak lux considerably(compared to aluminum reflectors), though.
SlikWiLL13
Well-Known Member
your a wealth of knowedge as usual TTO. but my point is the flat white paint is the easiest to install and maintain. i dont think you can argue with that(not that we were arguing
).
TeaTreeOil
Well-Known Member
I doubt it. Sheet metal(aluminum). Rigid, supportive, lasts 25+ years, and is very easy to clean. Paint lasts what... 6 months? So sheet aluminum, we'll say is... what, over 50x times as durable(maintains) as paint. Does it cost 50x as much as paint? No, highly unlikely. Hmmmm....
Please! House paint, flat white paint, whatever, is not designed for any kind of real reflectivity(beyond diffuse). It has reflectance, which is a measure of diffuse and specular reflectivity, the sum, the total. A highly diffuse surface and a highly specular surface can have the same reflectance(it just depends on the angles at which the light reflects), but the specular surface will throw light much more intensely(up to several times) than the diffuse surface. While the diffuse surface more evenly lights the area.
Example: http://www.glenbrook.k12.il.us/gbssci/phys/class/refln/u13l1d.html
Please! House paint, flat white paint, whatever, is not designed for any kind of real reflectivity(beyond diffuse). It has reflectance, which is a measure of diffuse and specular reflectivity, the sum, the total. A highly diffuse surface and a highly specular surface can have the same reflectance(it just depends on the angles at which the light reflects), but the specular surface will throw light much more intensely(up to several times) than the diffuse surface. While the diffuse surface more evenly lights the area.
Example: http://www.glenbrook.k12.il.us/gbssci/phys/class/refln/u13l1d.html