spotting appearing under Opti-coat?

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highgrade

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Unfortunately, I don't have a picture to post so I will do my best to explain.
I recently detailed a VW Jetta and sealed it with Opti-coat.
About a week later, he washed the car and noticed some "spotting". In particular, the trunk has a plastic section where the license plate mounts. It looks like water spots. The surface is completely smooth and the "spots" are it really looks like the spots are under the sealant. I am certain these spots were not there when the car was completed. The spotting also appeared on a side panel but only about an inch long.
I have no idea what would have caused this and was wondering if anyone else has ever experienced this.

washed with dawn and a little apc.
Use the Opti clay system
Menzerna products
prep vehicle with Prep-All
apply sealant
 
Have not had any problems with the Opti Coat 2.0 so far. But my oldest application is about a month old.
I see you wiped with Prep-All before applying the Opti Coat. I have never used that product for the final wipe down. I either use CarPro Eraser or just odorless mineral spirits.
I will be following this thread to see if anyone else reports any difficulties like you reported. And especially if they also used Prep-All too.
 
thanks for the response oldmodman. My initial fear is that the prep-all is the culprit. Temp was about 55-60 degrees with very low humidity. I am wondering if the product did not completely evaporate or could have possibly soaked into the clear coat, leaving an initial look of a perfectly clean surface and the sealant went right over it and sealed it in. I figure it spotted up when it started to dry or gases were released when it was in the sun. I don't know...just guessing at the moment. The bummer is I have to go back and strip the sections down and do it again. At least my client is not too upset since I am willing to fix it.
I have never had this happen before so I am curious to see if anyone else reports anything like this too.
 
OptiCoat won't seal stuff in...it just won't bond in that area. That's why the surface needs to be clean.


Sent from my IPhone
 
Chris@Optimum said:
OptiCoat won't seal stuff in...it just won't bond in that area. That's why the surface needs to be clean.
Sent from my IPhone
Click to expand...
Thanks Chris. As far as I can tell, the surface is bonded...just has these water looking spots showing up.
 
When it doesn't bond or water interrupts the cross linking, it looks kinda hazy or like a high spot. Get us a pic and maybe someone can help diagnose it.


Sent from my IPhone
 
The pics look like the area was not prepped. They look like hard water spots and the area looks unpolished. I would recommend repolishing and recoating the area.
 
This exact same thing happened to me. However, prep was at fault and not Opti Coat. I did not clean well enough and plus it rained shortly after application and I got water spotting over most of the vehicle. After speaking with Chris, I had to re-polish the whole vehicle, prep, and re apply Opti Coat.

The second application was vastly better and I am HIGHLY impressed with Opti Coat.
 
I hate having to re-address this issue but I am very curious about an issue with a clients car.

I re-did the entire car (mentioned at the beginning of this post) and sealed it with opti-coat. All of the marks were gone. The car was left overnight and my client got the car back the next day. The car then sat in a garage for over a week due to bad weather. There were no stains, spots, or anything of the sort.

Shortly after, the car was taken out and driven on roads of melted snow mixed with magnesium chloride, the primary chemical put down on roads in our area. The car was not washed for a while but when it was, the client noticed that there were stains down the side of the car and it appeared to be worse in areas where the road grime had collected (of which is a mixture of magnesium chloride).

I have read that magnesium chloride is known to "stain" or "spot" a car's finish. I am curious if any testing has been done with Opticoat to what chemicals might cause Opticoat to have an "adverse" reaction ?

Any feedback would be great!
 
If you've been around detailing forums long, I'm sure you've heard about defects returning after using Menz polishes. I'm not sure this is what has happened, but from our testing it should not be an adverse reaction to magnesium chloride at the interval you said you waited to expose the car.

My suggestion is to repolish a single panel with Optimum polish and see if you have the same experience. Please don't take this in any way as a slam to Menzerna, because it is not. We just need to eliminate prep steps one at a time to find the culprit and the polish is the first place I would start.
 
Chris@Optimum said:
If you've been around detailing forums long, I'm sure you've heard about defects returning after using Menz polishes. I'm not sure this is what has happened, but from our testing it should not be an adverse reaction to magnesium chloride at the interval you said you waited to expose the car.

My suggestion is to repolish a single panel with Optimum polish and see if you have the same experience. Please don't take this in any way as a slam to Menzerna, because it is not. We just need to eliminate prep steps one at a time to find the culprit and the polish is the first place I would start.
Click to expand...

thanks for the info. Thankfully, I have a new bottle of the Optimum polish. I will provide feedback after I redo a section.
I have not read much about issues with Menzerna. However, if there are issues, I surely want to know. I am using Opti-coat a lot more and if it makes sense to use the Optimum polish instead, then that is what I will do. :)
 
highgrade said:
thanks for the info. Thankfully, I have a new bottle of the Optimum polish. I will provide feedback after I redo a section.
I have not read much about issues with Menzerna. However, if there are issues, I surely want to know. I am using Opti-coat a lot more and if it makes sense to use the Optimum polish instead, then that is what I will do. :)
Click to expand...
I guarantee it makes a helluva lot of sense! Just use a damp MF to remove any residue. Also dont let the polish dry on the paint.
 
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