Just purchased a 2005 Murano (Blue). Nice, well cared for vehicle but the hood has at least 20 blobs of touch up paint on it, many in very noticable spots on the hood. I'm doing my usual detail on the vehicle and everything is looking great but for the blobs. Anyone have a solution to minimizing these dastardly things? I'm fairly skilled with paint and finishing, but not a pro.
Case of the blobs
- Thread starter tbonemacd
- Start date
Iomcamaro
New member
You might want to try either the Langka System or Dr. Colorchip. These fill in the chips and get rid of the blobs. :bigups:
Concours.John
Auto Detail & Restoration
If the blobs have totally filled the chips you will have to sand for a noticable improvement. Wipe the area with 80% ISO inspect the chips. As long as there is touch up filling the chip you can proceed to sanding. It may be difficult to tell because the blob edge is above the paint surface.
If you want add more touch up to the chip let dry a day then proceed.
If you were starting with fresh chips I would suggest color then clear. If you add clear now the paint that has over flowed will create a ring around the clear as you sand. Think of a non flared bowl. The clear is one layer if the basecoat sits on top at the edge the clear will fill the middle as you sand it becomes more apparent.
If you are comfortable with wet sanding that may be the way to go. If your new to it I wouldn't use more than 2000 grit.
You MUST use a firm sanding block. The reason behind this is a soft block will sand the peak of the blob and touch down on a perimeter around the blob. Think of a dot then shiny circle(unsanded)then dull circle(sanded). What can happen is sanding down too much clear around the blob. This may not cause a problem now but during polishing after sanding or further down the road. You will end up with the imfamous dull spot(no clear).
A hard block will plane down the tip of the blob first if you are carefull. imagine balancing a ball on the tip of your finger.
Start with 2000, 1500 if your comfortable(if using 1500 stop once the blob is almost gone then goto 2000) sand till you JUST start to dull the surounding area.
The goal is to stay centered on the tip. Follow with 3m 3000grit trizact foam sanding disk(go where you can buy them individualy) to make polishing out easier. Then compound M105 or equivalent then to polish.
I woulld like to suggest finding something to practice on if you have never done this. The hood is the most easy to work on but the most noticable if you mess up.
Hope this helps I'll quit ranting on.:blabla:
If you want add more touch up to the chip let dry a day then proceed.
If you were starting with fresh chips I would suggest color then clear. If you add clear now the paint that has over flowed will create a ring around the clear as you sand. Think of a non flared bowl. The clear is one layer if the basecoat sits on top at the edge the clear will fill the middle as you sand it becomes more apparent.
If you are comfortable with wet sanding that may be the way to go. If your new to it I wouldn't use more than 2000 grit.
You MUST use a firm sanding block. The reason behind this is a soft block will sand the peak of the blob and touch down on a perimeter around the blob. Think of a dot then shiny circle(unsanded)then dull circle(sanded). What can happen is sanding down too much clear around the blob. This may not cause a problem now but during polishing after sanding or further down the road. You will end up with the imfamous dull spot(no clear).
A hard block will plane down the tip of the blob first if you are carefull. imagine balancing a ball on the tip of your finger.
Start with 2000, 1500 if your comfortable(if using 1500 stop once the blob is almost gone then goto 2000) sand till you JUST start to dull the surounding area.
The goal is to stay centered on the tip. Follow with 3m 3000grit trizact foam sanding disk(go where you can buy them individualy) to make polishing out easier. Then compound M105 or equivalent then to polish.
I woulld like to suggest finding something to practice on if you have never done this. The hood is the most easy to work on but the most noticable if you mess up.
Hope this helps I'll quit ranting on.:blabla:
Rocket
New member
I agree with the above. I've used this method and it has provided great results nonce finished you can't even see where you touched up
Follow up:
Looked at these 'blobs" a little closer. Turns out they are some kind of hardened, brown spots. Some of them I have been able to chip off the hard outer "shell" then buff down to nearly perfect finish. Any ideas on what it was? Maybe dried sap? Would a paint cleaner like Zymol get up the remaining residue?
Looked at these 'blobs" a little closer. Turns out they are some kind of hardened, brown spots. Some of them I have been able to chip off the hard outer "shell" then buff down to nearly perfect finish. Any ideas on what it was? Maybe dried sap? Would a paint cleaner like Zymol get up the remaining residue?
Rocket
New member
I would try claying the spots