magictouch24 said:
Just out of curiousity, do the majority of you guys use washmitts and sponges, or does anyone use brushes? Both of the shops I worked for before I went out on my own used brushes (with a long handle) to wash cars except for the occasional black car in pristine condition....
Heh heh, I'd treat every vehicle like it's a pristine black one
I used BHBs on the MPV and the WRX for a few years, even after I stopped using them on the "good" cars. Didn't mar it much, I'd only have to polish every year or so, about the same as with mitts when using a less-than-extreme technique. But I was very careful, often rinsing the brush after every swipe (think multiple swipe-rinse-dunk-swipe cycles for one door). Once I got the foamgun method worked out, I could go even longer without having to polish, but the MPV has had clear (sold the WRX without using the foamgun on it).
Now that I'm all extreme about my wash techniques, the only time I use my BHBs these days is a) with a foamgun blasting through the bristles, and b) when I need to flush really abrasive dirt off the finish (e.g., winter [stuff] ). I use it with the "dislodge and flush" (minimal contact) approach, which takes advantage of the BHBs' clean-rinsing nature.
The way most people use brushes (and, IMO, mitts too for that matter) almost guarantees marring. Two things to think about-
First, make sure the bristles aren't so stiff/coarse that they'll mar on their own, but remember that natural fibers (hair) will often soften when they're wet and the wash solution will also provide some lubrication (so don't test a dry BHB on a CD). If you use a brush with "flagged" plastic bristles, remember that the flagging will wear away, and then it's scratch city, so replace it before you need to (voice of experience, I ruined some cc'ed wheels with a brush that was initially *perfectly* safe, and it still looked fine).
Second, watch that you don't use the brush to grind abrasive dirt into the paint, either by exerting too much pressure or not keeping the brush rinsed clean (that's where the foamgun comes in

). If you move a piece of abrasive dirt over the panel with any pressure you're gonna scratch the paint. It's really tempting to wash a whole panel with a brush, especially one that holds a lot of wash solution. Don't press so hard that you bend the bristles much at all.