Good find Ray. Well posted info.
In my previous work, I hand built prototype air induction components for the automotive industry. I welded plastics, vacuum formed, injection molded and also blow molded parts, but I never was able to come up with a texture system that really worked. I could have used that technique at times.
However, I would suggest a person practice on scrap or other unimportant areas before trying to do the real thing. :goodpost: