Hi Risa. Thank you for your review. I'm so sorry the previous gray color is still coming through the paint. Typically, our Ultra Scuff Defense Paint will cover in about 1-2 coats. However, additional coats may be needed depending on the color, application, and surface. I recommend allowing the paint to dry for at least 24 hours as this may help it even out on it's own. If you can still see the previous gray color after this, I recommend recoating across the surface with a 3/8-1/2" nap roller if the walls are smooth or a 3/4" nap roller for textured walls. Customer satisfaction is very important to us, and we appreciate your feedback. Please feel free to reach out to our Customer Care team directly for further assistance. Our team is happy to help you! -Joni