Why would I use two different polish compounds? I used Meguiar DA300 and it was able to tackle all the swirl marks and scratches that I have. What will Menzerna SF4000 add to the result if I use it after the Meguiar's DA300? Hope you all can help me with my confusion. Thanks, Matt
It depends on the level of correction that's needed. If the paint is really messed up you'll need a compound (& the proper pad) to get rid of scratches and deep swirl marks and then a fine polish to jewel the paint (get it as smooth & glossy as possible). You might want to use a compound for bad swirl marks/scratches, a medium polish after that and then a fine polish to finish with. It depends on what kind of condition your paint is in and how mush time you want to invest in it.