For years I've been irritated at wheel brushes. Why they don't rubber coat the handles I'll never know. The common plastic block on my boars hair brush was driving me bonkers. I constantly was knocking parts of the wheels. Often times when the brush block hits a wheel it will leave a mark. If you even notice tiny marks on the wheels and you have a brush that knocks that is probably where they are coming from. Even with 4" bristles and moving slow the block contacts the wheel. I decided I'd coat the brush block with something to cushion it. I wanted to try the dip stuff for dipping tool handles but I couldn't find it at the Harbor Freight near me even though they have it online. Might have helped if I asked some too. I noticed some liquid electrical tape at Walmart that might work too but I decided on hot glue. I was buying a hot glue gun anyway so figured it was worth a shot. $3.30 for the gun and a back of sticks that worked on plastic. I cleaned the brush up with some goo gone and sanded it a little. Then I just start applying the glue. Initially I had planned to go back over it and smooth it out with a hot piece of metal. Midway through I decided to change the color. Krylon makes a paint called Fusion that works great on plastics. Would be neat to color match spray bottles and brushes to company colors. Since most of the block was covered already in glue I just painted the glue. I went back over it a little more to cover the paint. The end results are quite ugly but it works like a champ. The glue cushions the block and is holding up to cleaners and water just fine. I've used it for a week or so now. If anyone uses the dip coating I'd like to see how that turns out. Next I think I'll hot glue some magnets on my brushes so I can stick them to my work truck.
Grog the caveman detailing!! j/k