Blending problem

Tommyllama

Promoted Users
Can anyone advise as to what is going on here and how I might correct this issue? I have attempted to blend a spot repair area with 2 stage and have this dull outline. Wet sanding has not helped with the situation.
 

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Yes, I am attempting to blend the clear and melt it in.
You cant wet sand a clear blend.....well you can lightly. What I believe you are seeing is the hard edge of the clear as you sanded it back.

When you do a blend repair, its the best practice to clear the entire panel. You only put base on a small portion, but on a panel like that, the entire panel needs to be cleared.

Clear blending is best saved for areas like an a-pillar or a bumper cover, and do not heavy wet sand the area. You can touch it up with some 2000 lightly to help blend the texture in, but thats it.
 
yes your sanding or buffing back the edge. you can sand and buff a clear blend but it has to be done correctly. of course the best way is to always blend the color, clear the whole panel. sometimes you cant do that though. what happens is the new applied clear is softer and buffs easier than the clear under it so it wears away faster than you putting a shine on the stuff under it. the way you do this is you need to use a fast clear that also cures hard. generally a spot repair clear. put a curing lamp on the blend area for a few hours or better part of a day. also in the blend area you should have a grey scotchbrite finish only. no sandpaper. this will buff easily. if you allow your blended clear to cure and harden really well then over grey scotchbrite scratch you should be able to sand and buff the blend without the dull line in the blend area. be sure not to sand you clear back where you are getting into the blended base or your line will never go away.
 
yes your sanding or buffing back the edge. you can sand and buff a clear blend but it has to be done correctly. of course the best way is to always blend the color, clear the whole panel. sometimes you cant do that though. what happens is the new applied clear is softer and buffs easier than the clear under it so it wears away faster than you putting a shine on the stuff under it. the way you do this is you need to use a fast clear that also cures hard. generally a spot repair clear. put a curing lamp on the blend area for a few hours or better part of a day. also in the blend area you should have a grey scotchbrite finish only. no sandpaper. this will buff easily. if you allow your blended clear to cure and harden really well then over grey scotchbrite scratch you should be able to sand and buff the blend without the dull line in the blend area. be sure not to sand you clear back where you are getting into the blended base or your line will never go away.
Also, you have to be sure to tack the whole panel before spraying the clear. If there's any base over spray anywhere, the blend will fail.
 
Wow! Lots of great info to take in. Thanks to everyone for taking the time to explain. Please advise if this would be the correct course with where I am at with this situation.
1. Grey scotchbrite with ScuffStuff entire panel. Let dry;
2. Clean panel with wax/degreaser. Wait at least 45 minutes;
3. Spray base on defective area;
4. Clear coat panel with a fast cure clear coat.
 
The steps i have above was for doing a clear blend. Not for doing the whole panel. If your goi g to blend the color and clear the panel then just 600 grit it, blend your base then clear with whatever clear you used originally
 
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