Hi Michelle, thanks for your review. I'm sorry to hear about the brush and roller marks on your mirror frames. To fix this, I recommend sanding to smooth out any leftover texture on the surface. Then, clean to remove any dust and apply another coat. To extend the working time of the paint and prevent brush marks, you can add up to 4-ounces of water per gallon. Customer satisfaction is important to us, and we'd like to help get your project back on track. Please feel free to reach out to us directly so we can further assist. We look forward to hearing from you! -Christina