As Mearly65 posted (I agree with him 100% btw) the actual condition of the rubber molding is the most important factor in this job. Nice soft plyable moldings are the best. If you have a steady hand and patience, you can lift the paint off with a razor blade. Need to sneak it under an edge and lift the paint, little by little. A soft molding, a steady hand and PATIENCE are a must. You can bend the molding a bit to get the paint to flex and crack. The blade can then be used and some times even your fingernail. Caution, if using your fingernail, you will get jambed up and it hurts. Then there is the thinner method. Apply thinner to small spot on a rag and wipe the area of the BC/CC only. Do not soak a rag on the entire molding. You'll need to rub for a while like your compounding a panel by hand. The BC/CC has fully cured by now and is tough. You'll need to work the thinner to get it to break down the overspray area. Wrap the cloth around the end of your finger and wet the tip and work the effected area only. Patience works well here also. Some type of chemical resistant glove works well to protect the end of your finger (it will dry out like the molding would when subjected to the thinner for an extended length of time). Out in the garage by yourself (and the radio) works best. Use a small fan to blow away the thinner fumes from your face.