Sealants containing silicone?

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WRAPT C5Z06

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Some sealants have it, some don't. What's the point of silicone in a sealant?

Thanks.
 
I guess because it's slippery? My paint sure feels slippery after a coat of WGDGPS, that's for sure. I can't imagine any other substance feeling that incredibly slick. I believe they're called "modified silicone polymers" and are used to make dirt slip right off.
 
doesnt it seem strange that detail supplies almost never list ingredients.?sure proprietory things count but almost everything else lets the consumer know more about the product you are buying. guess i will be buried when carnauba is found to cause hand cancer.
 
daveinsweethome said:
doesnt it seem strange that detail supplies almost never list ingredients.?sure proprietory things count but almost everything else lets the consumer know more about the product you are buying. guess i will be buried when carnauba is found to cause hand cancer.
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And the scents added to make wax/sealers smell nice causes lung cancer. :doh:

Cliff
 
I think silicone aids in easy application and removal of the product!(usually sealants)

but they are definitely not bodyshop safe!!!
 
Keep in mind there are any different types of silicones - hundreds, if not thousands.

Not all are "bad".
 
forrest@mothers said:
Keep in mind there are any different types of silicones - hundreds, if not thousands.

Not all are "bad".
Click to expand...

The only time silicone really matters is right before a car is moved into a paint booth to have fresh paint sprayed onto it and you just have to understand that at any reputable body shop before painting a car the exterior panels are fully cleaned and prepped before it ever gets to the painting stage and this usually involves sanding the top coat off and sometimes all the way down to bare metal.

ANY silicone or ANY other ingredient that could cause a surface adhesion problem between the body panels and the fresh paint has been addressed before the car moves into the paint booth. Thus it's really a non-issue and even when it is an issue, like when you take your car and drop it off to have it painted, (that doesn't happen to most people everyday), then again, the folks working in the body shop know how to make paint stick.

Also, the problem isn't just with silicone... any substance that causes surface tension will cause surface adhesion problems.

So think of a wax or paint sealant that you like because it makes water bead so strongly and for so long....

The substance in that product that makes water bead up, whether it's Carnauba or some kind of Polymer, it will also cause the same problem silicone would cause if it were to be left on the surface and you tried to get paint to stick to the panel.

I think we need some pictures of cars being prepped for paint so people that don't know what the exterior shells look like will see that there's no chance anything applied to the outer surface of the paint will exist by the time the car is ready to move into the paint booth.

Silicone is so not the issue it's made out to be both in the real world and the Cyberworld.

I'll stick by what I originally wrote...

The reason chemists put anything into a formula is for one of two reasons and usually both...

  • Benefit to the process
  • Benefit to the person
Sometimes you just have to trust the name on the label...


:)
 
My only concern is I wondered if a silicone based sealant would darken paint? I'm referring to 3M performance finish.
 
07 z-oh-6 said:
My only concern is I wondered if a silicone based sealant would darken paint? I'm referring to 3M performance finish.
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I've never seen anything reliable to document this kind of fear...

Darkening... that's a whole other topic with a ton of confusion and misconceptions...

For some reason people think bringing out the full richness of color is a bad thing, or maximizing clarity. That's what the darkening effect is, it's not a bad thing, it's a good thing...

One time, on a forum somewhere, someone posted something uniformed and probably unintentional about the darkening effect of a product and then like Parrots other's repeated it over and over again on detailing discussion forums and now now there's confusion and misconceptions about what products do to paint.

Although it's a completely unrelated topic, I remember when I first started posting to CorvetteForum, all the "Pros" over there were always talking about how soft Corvette clears are... one or two people confused scratch-sensitive with paint hardness and the misconceptions followed...


"Find a product you like and use it often"



:dunno:
 
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