As I wash the lower panels of my 2000 JGC, I can feel what I can best
describe as "grit" on the car finish. It is not visible to the eye, but
when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
suspect it might be road tar, but I really don't know what it is.

I have found this only on the very lower panels of the car, and most
pronounced on the very lowest panels just rear of the rear wheels. I
believe these panels are plastic.

These rough "bumps" will not come off with regular car wash liquids used
full strength and applied with a non-abrasive washing pad.

Any recommendations on what product I might use to remove this grit??

Thanks !!

--James--

 

James Nipper proclaimed:

>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.

Road tar would be black...pretty easy to see unless your paint is also
black. Tar will usually come off with a bit of WD-40 or a bit of
automobile finish cleaner.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.

Could be roughness in the plastic itself?
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??

Make sure it is foreign matter. Clean it good, then try one of the
pre-cleaners to be used before waxing. Doubt if claying plastic would
work...

You might want to have a local detail shop check it for you to make
sure it isn't just a rough finish.

 

James Nipper proclaimed:

>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.

Road tar would be black...pretty easy to see unless your paint is also
black. Tar will usually come off with a bit of WD-40 or a bit of
automobile finish cleaner.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.

Could be roughness in the plastic itself?
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??

Make sure it is foreign matter. Clean it good, then try one of the
pre-cleaners to be used before waxing. Doubt if claying plastic would
work...

You might want to have a local detail shop check it for you to make
sure it isn't just a rough finish.

 

James Nipper proclaimed:

>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.

Road tar would be black...pretty easy to see unless your paint is also
black. Tar will usually come off with a bit of WD-40 or a bit of
automobile finish cleaner.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.

Could be roughness in the plastic itself?
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??

Make sure it is foreign matter. Clean it good, then try one of the
pre-cleaners to be used before waxing. Doubt if claying plastic would
work...

You might want to have a local detail shop check it for you to make
sure it isn't just a rough finish.

 

On Sun, 19 Sep 2004 22:07:55 -0400, "James Nipper"
<jnipper@nospam.fdn.com> wrote:


>Any recommendations on what product I might use to remove this grit??

http://www.griotsgarage.com/catalog....1001&SKU=15900

3M General Purpose Adhesive Cleaner, also marketed as Bug and Tar
Remover. Available in any auto body/ paint supply. _Excellent_ stuff -
it will remove the wax, so plan on rewaxing immediately. Wear rubber
gloves to keep it off your skin.

I disagree with another poster's comment about a clay bar - it should
work fine on plastic. If you are unfamiliar with clay bars...

http://www.griotsgarage.com/catalog.jsp?&SKU=11145


John


John Davies TLCA 14732
http://home.comcast.net/~johnedavies/
'96 Lexus LX450
'00 Audi A4 1.8T quattro
Spokane WA USA

 

On Sun, 19 Sep 2004 22:07:55 -0400, "James Nipper"
<jnipper@nospam.fdn.com> wrote:


>Any recommendations on what product I might use to remove this grit??

http://www.griotsgarage.com/catalog....1001&SKU=15900

3M General Purpose Adhesive Cleaner, also marketed as Bug and Tar
Remover. Available in any auto body/ paint supply. _Excellent_ stuff -
it will remove the wax, so plan on rewaxing immediately. Wear rubber
gloves to keep it off your skin.

I disagree with another poster's comment about a clay bar - it should
work fine on plastic. If you are unfamiliar with clay bars...

http://www.griotsgarage.com/catalog.jsp?&SKU=11145


John


John Davies TLCA 14732
http://home.comcast.net/~johnedavies/
'96 Lexus LX450
'00 Audi A4 1.8T quattro
Spokane WA USA

 

On Sun, 19 Sep 2004 22:07:55 -0400, "James Nipper"
<jnipper@nospam.fdn.com> wrote:


>Any recommendations on what product I might use to remove this grit??

http://www.griotsgarage.com/catalog....1001&SKU=15900

3M General Purpose Adhesive Cleaner, also marketed as Bug and Tar
Remover. Available in any auto body/ paint supply. _Excellent_ stuff -
it will remove the wax, so plan on rewaxing immediately. Wear rubber
gloves to keep it off your skin.

I disagree with another poster's comment about a clay bar - it should
work fine on plastic. If you are unfamiliar with clay bars...

http://www.griotsgarage.com/catalog.jsp?&SKU=11145


John


John Davies TLCA 14732
http://home.comcast.net/~johnedavies/
'96 Lexus LX450
'00 Audi A4 1.8T quattro
Spokane WA USA

 

James Nipper wrote:
>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??
>

A new paint job after stripping off the 'rubber' anti chip undercoating?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

 

James Nipper wrote:
>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??
>

A new paint job after stripping off the 'rubber' anti chip undercoating?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

 

James Nipper wrote:
>
> As I wash the lower panels of my 2000 JGC, I can feel what I can best
> describe as "grit" on the car finish. It is not visible to the eye, but
> when I rub my hand over it, the feeling is a bit like coarse sandpaper. I
> suspect it might be road tar, but I really don't know what it is.
>
> I have found this only on the very lower panels of the car, and most
> pronounced on the very lowest panels just rear of the rear wheels. I
> believe these panels are plastic.
>
> These rough "bumps" will not come off with regular car wash liquids used
> full strength and applied with a non-abrasive washing pad.
>
> Any recommendations on what product I might use to remove this grit??
>

A new paint job after stripping off the 'rubber' anti chip undercoating?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's