Looking for content writer with experience in the protective coatings industry

Please only bid if you have real experience and knowledge of the protective coating industry. This includes polyurea, polyurethane, polyaspartics, and epoxy. I am only looking for very high-quality work with no use of spinning or duplicate content. I would like to pay a flat fee per article. I am looking for someone that can do lots of writing, as i own and maintain over 100 blogs and websites.