Just go to www.sherwin-automotive.com and pull up the product data sheets for the primer. It tells the mix ratio's and the time between priming and top coat. You will typically use an etching primer on bare metal and then primer over that. You will not have any problems with recoating after sitting - you will just need to scuff the primer and shoot one more coat and then go back over with your basecoat/clearcoat.
If you need to find an S-W Automotive Finishes store close to you then send me a private message and I will get a contact in your area. I should also be able to find a reputable S-W shop close to you that will do the final painting for you.
