800 is fine and works great to level texture but you have to be extra careful around edges and body lines, as you found out. I like to use a silver sharpie marker to highlight anywhere that is easy to sand through, it works like a guide coat so you can see when you've sanded just enough to get the texture out without going too far and burning through. After 800 switch to Mirka white dry guide coat, you can see the scratches coming out that way. Once you get up to around 2000 the guide coat doesn't really stick well enough to bother with, so sand all in once direction with 2000 then sand with 2500 in the other direction until all the 2000 scratches are gone.
I never wet sand in 100% straight lines, maybe a ~15 degree difference every few strokes helps to cut the surface better since you're not sanding directly in the same scratch grooves every pass. Then 90 degrees from that direction for the next grit.Is the sanding performed at a 30 to 45 degree angle like filler sanding.......or is it straight sanding, in opposite direction?
Shot 5 more coats of single stage. Retarder helped as it was 108 degrees out. Not to bad of a job for painting outside. SPI black looks great.
Obviously never used Scuff Stuff before, but once you're finished with it, do you just clean it off with 710, or water, or how?If you do it with a grey pad alone you will really have to work it and change pads several times. Using the scuff stuff you will get a much better scuffing. I would highly recommended it. Something like what you are doing you really need the extra insurance of a good scuff.
Scuff Stuff is kind of a cleaner as well. I just use water to clean it off.Obviously never used Scuff Stuff before, but once you're finished with it, do you just clean it off with 710, or water, or how?
Rinse with water as it has a sudsy cleaning agent in it. Essentially you are scuffing and cleaning at the same time.Obviously never used Scuff Stuff before, but once you're finished with it, do you just clean it off with 710, or water, or how?
Thats what the grit in it is for. To enhance a grey scotchbrite pad. It works very well. Gets all the nooks and crannies that you can't easily get with paper.Scuff Stuff is a great cleaner. I'm kind of fond of Comet with a white pad. I always scuff with sandpaper. I just trust it more than a grey pad.
I get that and if needed, I'll hit those hard areas. I just don't trust the scratch.Rinse with water as it has a sudsy cleaning agent in it. Essentially you are scuffing and cleaning at the same time.
Thats what the grit in it is for. To enhance a grey scotchbrite pad. It works very well. Gets all the nooks and crannies that you can't easily get with paper.
It's roughly equivalent to 800 wet IMO. I always go over with paper as well. I use it to finish everything though (collision) It's great for blending. On blend panels I knock the texture down with 800 then scuff stuff it. That and bumper covers is where it saves a lot of time.I get that and if needed, I'll hit those hard areas. I just don't trust the scratch.
I use it as one of the last steps too. Just initially, I like to use the CometIt's roughly equivalent to 800 wet IMO. I always go over with paper as well. I use it to finish everything though (collision) It's great for blending. On blend panels I knock the texture down with 800 then scuff stuff it. That and bumper covers is where it saves a lot of time.