Bedliner for interior floor

Yes I used it on the floor of my Dart just a few weeks ago. I used DupliColor brand. Doing just the floor I used a full quart. I brushed the corners with a cheap brush and rolled the large with a small 4" roller. Be careful because it can be messy and the only thing that will remove it acetone and nothing will remove it after it drys. I am very happy with the results but I think it would take 2 quarts to see a sound deadening effect. If you need any advice on it just shoot a pm. I have done my car, my dads Willys, and two truck beds for friends.