Undercoating questions
#2
03-07-2019, 01:50 PM
Veteran Member
The product Jag used was most likely 3M Body Shutz. I sprayed it and it seems very similiar in texture and the very dark gray color seem to match. The texture of undercoating is very dependent on the tool you are spaying it with.
That under coating on the rockers is a common rocker panel coating. Many names for it..."rock guard" rock chip spray" "chip guard "rocker guard"
Its thinner than undercoating and goes on with a more consistent orange peel texture. My 928 has it too.
That under coating on the rockers is a common rocker panel coating. Many names for it..."rock guard" rock chip spray" "chip guard "rocker guard"
Its thinner than undercoating and goes on with a more consistent orange peel texture. My 928 has it too.
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JigJag (03-08-2019)
#3
03-07-2019, 02:01 PM
Veteran Member
I'm glad you asked, I was just fixing the coating on my car with abit of truck bedliner spray and wondered what was originally sprayed on the undersides.
Is your coating some kind of textured colour matched stuff or is it that hard oil wax spray? Would be great if the original stuff is still available.
Is your coating some kind of textured colour matched stuff or is it that hard oil wax spray? Would be great if the original stuff is still available.
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JigJag (03-08-2019)
#4
03-08-2019, 04:28 AM
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JigJag (03-08-2019)
#5
03-08-2019, 05:36 AM
My coating is dark gray, with a broad bump to it. Rocker coating is the same color and a nicer orange-peel texture. The coating appears to have protected my undercarriage quite nicely, but is coming off cleanly in large sheets 6” or so from inside the wheel wells. The rear had a 3” patch missing when I acquired it, and I thought it was damage. Gentle probing and half the rear panel is exposed the other half holding tight. Looks bad. This is the only body panel coated on my car. All the other rockers are uncoated. And the rear rocker seem least likely of all to take a piece of gravel or road debris. I plan to remove the remaining coating here.
With the the wheel wells fully exposed now, I’m considering body color plasti-dip coating in there.
With the the wheel wells fully exposed now, I’m considering body color plasti-dip coating in there.
#6
03-08-2019, 06:14 AM
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#7
03-08-2019, 08:13 AM
Senior Member
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#8
03-08-2019, 10:44 AM
Veteran Member
I would do the best undercoating ever: oil. When draining the oil from the engine, collect it, spray it on the underside and done. It will NEVER rust again.
#9
03-08-2019, 10:57 AM
Veteran Member
#10
03-08-2019, 11:51 AM
Veteran Member
Some used oils have more sulphur containing molecules and additives than used oil (due to thermal break down).
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