McKee's 37 Sio2 Auto Wash

**mmhammer** · 04-10-2018, 08:25 AM

I recently used the McKee's 37 Sio2 Auto Wash in Florida in February and again once the weather warmed up here in Michigan in March. It really did revive my Mckees coating, couldn't believe the difference. However, I did wash the whole car with it including the glass and now there are little 3/16" scratch marks (not real scratches) all over the windshield. This was a newer windshield (6 months) that didn't even have wiper marks on it yet and crystal clear. Now there are these little random marks all over that look like fiberglass insulation particles. Anyone experience anything like this? I will never use it on glass again. There are some ceramic SiO2 products that say to use on glass and others do not, this being one that Nick spayed all over his car in the video. The only other product that was used on the windshield was Wolfgang Uber rinseless. This stuff does not seem to be wearing off. I will wait it out, I really do not want to polish the glass. Pictures will not show the phenomena.

**Bruno Soares** · 04-10-2018, 08:34 AM

I use that soap on the entire car with no issues. I even put that soap on the foam cannon and let it dwell over the entire car before I start washing. Works fine.

**Eldorado2k** · 04-10-2018, 08:38 AM

I know you said pictures won’t show it, but have you tried taking a picture from the inside of the car facing the direct sun in the afternoon? ☀️ That’s usually the best time to do it.

Either that or at night facing the opposing traffics headlights.

**mmhammer** · 04-10-2018, 08:46 AM

"I know you said pictures won’t show it, but have you tried taking a picture from the inside of the car facing the direct sun in the afternoon? ☀️ That’s usually the best time to do it. "

Looks like today might actually be sunny - I'll see what I can do. But I think I gave a fairly accurate detailed description.

**The Guz** · 04-10-2018, 08:49 AM

No issues here using it.

**Eldorado2k** · 04-10-2018, 08:51 AM

Originally Posted by mmhammer

Looks like today might actually be sunny - I'll see what I can do. But I think I gave a fairly accurate detailed description.

This is 1 of those deals where we Need to see it.

**mmhammer** · 04-19-2018, 03:41 PM

Spots when looking near or into the sun - none when looking to the sky. I normally cannot see them only in glaring conditions. No, it is not a reflection of the ice beads on my hood, nor is it a reflection from my dash.

**DaveT435** · 04-19-2018, 03:54 PM

Does anyone know if this car wash leaves something behind, or is made to strip down to the coating?? I've been using this wash since it came out and haven't had any issues. Is it possible that these scratches were there but filled with oils, waxes, or silicone of some kind??

The only time I ever saw something like that was when I used a glass polishing pad other than CarPro with cerium oxide.

**Nix** · 04-19-2018, 07:00 PM

From Description "McKee's 37 Sio2 Auto Wash will not alter the performance of your existing coating – in fact, the Sio2 enhanced formula actually boosts your coating! McKee's 37 Sio2 also contains water softeners that allow for use even in direct sunlight! Keep your coating look and performing its best with McKee's 37 Sio2 Auto Wash! "

**The Guz** · 04-19-2018, 07:09 PM

Originally Posted by mmhammer

Spots when looking near or into the sun - none when looking to the sky. I normally cannot see them only in glaring conditions. No, it is not a reflection of the ice beads on my hood, nor is it a reflection from my dash.

Is the glass pitted? When was the last time the glass has been polished?