On Mon, 17 Jul 2017 12:39:00 -0400, Retired wrote:

$30 to have it done is nice. However the Sylvania $20 kit does include
UV block.

Kit contents:

1 oz. Surface Activator
1/2 oz. Clarifying Compound
1 oz. UV Block Clear Coat
Waterproof Premium Sandpaper (400, 1000 & 2000 grit)
Applicator and Polish Cloths
Vinyl Glove

I like to know how things work, since there's usually no magic involved.
Looking up the Sylvania kit, is this the combination you are talking about?
http://www.osram-americas.com/en-us/...ation-kit.aspx

$18 SYLVANIA Headlight Restoration Kit
https://www.amazon.com/Sylvania-HRK-.../dp/B00429NKWK

$12 SYLVANIA Headlight Restoration UV Block Clear Coat, 1 fl. oz.
https://www.amazon.com/Sylvania-HRK-...01KIVYE6G?th=1

It's a multipart where this has some of the permutations & combinations:
https://www.opticatonline.com/part/s...estoration-kit

It seems (almost?) impossible to find the MSDS for this stuff online, so I
can't tell you what's in it yet. I have a call open to Sylvania at
1.800.729.3777 to ask them to email them to me though.

I realize I take a different approach than almost everyone here in that I
don't stay on the same well-worn trails that everyone else does. To me,
product solutions just commodities that are just basic chemicals.

The work is in finding out what the chemicals are, and in figuring out what
they do that matters - which is the fun part.

So far, it seems that the uv block is just simethicone (silicone) and the
restoration part is just aluminum oxide (grit) but that's only a basic
assumption based on the 3M results.

I'll let you know what Sylvania comes up with as their "magic" ingredients.