I'll explain how window film is rated by darkness: 50% This is the lightest tint available. It blocks out all UV rays and provides a slightly darker look to the glass. 50% of the light which hits the window actually makes it through the film 35% Most states which limit window tinting, use this as their limit. 35% light transmittance. 20% This film is very dark, only allowing 20% of the light to pass through it. Limo tint can be anywhere from 5-10% light transmittance. Black out tint is 0-5% Window film is also rated on reflectance. Full mirror film is 100% and is not legal in any states anymore, that i know of. The percentages are estimates. We checked some 20% 3M film with a 50% reflectance rating with a light meter. Only 17% light transmittance was found.
Erik Peterson R.R. Designs Bellingham, WA '80 Vanagon '68 Squareback '79 Scirocco '84 Interceptor
On Thu, 1 May 1997, Seastoner wrote: > Ummmm....made a mistake in the original posting it's 20% tinting for > the sides and back... > >
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