Best Investment for your Boxster.

[MNBoxster]

Originally Posted by deliriousga

I'm putting on the light color tint with high UV protection. It won't be black or mirror. It should look close to the same....I hope.

Hi,

I read somewhere (can't remember the source, but did write some notes), that Porsche Automotive Glass already has UV protective layers laminated in the Side Window Glass. That it provides 95% UV Protection. The two transparent UV Laminates are called Vanceva and Saflex. This would seem to make tinting, for UV protection anyway, redundant. Anyone else come across this, say in some Sales or Tech Literature?

Happy Motoring!...Jim'99

[Brucelee]

I concur with Jim. The existing tint on the Box is quite superior in anti UV and anti heat properties.

[deliriousga]

Originally Posted by Brucelee

I concur with Jim. The existing tint on the Box is quite superior in anti UV and anti heat properties.

Cool!! That'll save me some bucks. What about the front window? The same stuff can go on it and it looks like clear glass. That's the part I'm most concerned with since the German dashes crack so easily.

[blinkwatt]

Does anyone know if the 99 boxsters came with UV protection? If so which windows?

[MNBoxster]

Originally Posted by deliriousga

Cool!! That'll save me some bucks. What about the front window? The same stuff can go on it and it looks like clear glass. That's the part I'm most concerned with since the German dashes crack so easily.

John,

I don't remember my source specifically listing the Windshield. But, considering that it's a convertible, I suspect that tinting it would be analogous to fighting a Forest Fire with a Garden Hose.

If it were me, I would (and do) use some Dash Protectant with UV protection (I use 3M Vinyl Care and/or Zaino Vinyl Care, both of which contain UV protection), and for those times when the car is parked Outdoors, Top Up, I would (and do) use the Porshe Sunshade. It is easy to deploy and fits neatly folded in the stowage pocket behind the Passenger seat, giving easy access from the Driver Seat. Hope this helps...

Happy Motoring!...Jim'99

[Rail26]

Best investment? A slush fund you contribue to reguarly to help pay for the dang thing.

[deliriousga]

Originally Posted by MNBoxster

If it were me, I would (and do) use some Dash Protectant with UV protection (I use 3M Vinyl Care and/or Zaino Vinyl Care, both of which contain UV protection), and for those times when the car is parked Outdoors, Top Up, I would (and do) use the Porshe Sunshade. It is easy to deploy and fits neatly folded in the stowage pocket behind the Passenger seat, giving easy access from the Driver Seat. Hope this helps...
Happy Motoring!...Jim'99

Thanks Jim,

I use Vinylex on the dash with UV protection and I use the sunshade when I park it in the sun, but it's not me I'm worried about. When we carpool and I keep the car, I cover it while I'm at work and put the sunshade in when I park at lunch. My wife drives it every day and if we don't carpool it sits at her office all day with no cover or sunshade. I can see $$$$ flying away as it sits 3-4 days a week in the bright sunshine with no protection. I have tried to get her to cover it, especially to guard against tree sap that eats the plastic window, but she says it's too difficult. I guess we will end up replacing something from sun exposure. When she recovers from passing out over the bill, the cover will become our best friend. I would just like to prevent it if at all possible.

Here is a simple test you can always preform to tell if the window (or any glass) has UV protection.

Remember the science stuff we all did in grammer school? Remember the science test we did with two plorizing lenses? When the lenses are parallel, the light goes through, but very slightly less intense. When one lens is turned 180 degress, the polorizing lines are now perpendicular, and no light goes through!

So how can this be applyed to your Boxster?

Take a polorized lens. We all have them if you have a good pair of sun glasses. Take two pair of sun glasses, align them, and the light will pass through. Now, turn one pair 180 degrees, and the light will be blocked! This will assure you that you now have a polorized test lens.

Now take that lens, and look through your side window or windschield. Everything should look fine. Now, rotate your head (be careful so you don't hurt yourself or hit someting while driving!!). As you rotate your head, if the Porsche glass is polorized, the light will eventually be blocked, as the two polorized lenses become perpendicular.

I hope this makes sense.

Have you ever noticed, when you have sunglasses on, that certain windows and glass in your car looks darker as you tilt your head? Or you see large dark spots, especially in your rear window? That's the polorization of the glass working, and fighting against each other.

[MNBoxster]

Originally Posted by bmussatti

Here is a simple test you can always preform to tell if the window (or any glass) has UV protection.

Remember the science stuff we all did in grammer school? Remember the science test we did with two plorizing lenses? When the lenses are parallel, the light goes through, but very slightly less intense. When one lens is turned 180 degress, the polorizing lines are now perpendicular, and no light goes through!

So how can this be applyed to your Boxster?

Take a polorized lens. We all have them if you have a good pair of sun glasses. Take two pair of sun glasses, align them, and the light will pass through. Now, turn one pair 180 degrees, and the light will be blocked! This will assure you that you now have a polorized test lens.

Now take that lens, and look through your side window or windschield. Everything should look fine. Now, rotate your head (be careful so you don't hurt yourself or hit someting while driving!!). As you rotate your head, if the Porsche glass is polorized, the light will eventually be blocked, as the two polorized lenses become perpendicular.

I hope this makes sense.

Have you ever noticed, when you have sunglasses on, that certain windows and glass in your car looks darker as you tilt your head? Or you see large dark spots, especially in your rear window? That's the polorization of the glass working, and fighting against each other.

HI,

That is very good reasoning and a very good way to test for Polarized Glass. But, polarizing isn't the only way to block UV. And, on Modern Cars, it is rarely used, so your test, valid as it is, won't work here.

Take Modern Eyewear for instances, since about 1995, by Regulation, all eyeglasses had to be 100% UV blocking. Yet, these eyeglasses (not Sunglasses) are not Polarized and will fail your test.

Normal Visible Light has a wavelength of between 400nm (Violet) to 700nm (Red). nm stands for Nanometer, or One Billionth of a Meter - a very small distance indeed. Ultra-Violet Light (UV) has Wavelengths of between 200nm to 380nm.

There are various materials which will block the shorter wavelength of UV while being totally transparent to the longer wavelengths of Visible Light. One such material is a class known as PVBs (Poly-Vinyl Butyls), not to be confused with the dreaded and Toxic PCBs. PVBs can be made into a film which is then sandwiched between the layers of Glass (in this case Auto Safety Glass) and effectively block up to 95% of the UV light which strikes it. PVBs can also be added to any number of other products, such as Dash Protectants and Waxes and add the same UV blocking qualities to these as well.

The most prevelent PVB Films on the Market today are known by the Trade Names Vanceva and Saflex. These are the Films which Porsche's Glass supplier uses. In addition to UV blocking, Vanceva in particular also aids in blocking light of longer wavelengths, such as Infra-Red (700+nm) which is essentially Heat Energy, so combining this with Saflex, the Glass effectively blocks much of the Heat which can also adversely affect your Car's interior. Hope this helps...

Happy Motoring!...Jim'99