When I did my dash, I lightly sprayed rocker panel spray under the color. This actually mimicked the texture well. You just can't spray it too heavy because it will want to "flow" and ruin the effect. Hold the can a little further away than you normally would spray. I think it was a 3M brand that I got from my local jobber.
Good luck


A real man would never be caught in a "BOWTIE" !!