For the first time today I used Black WOW on my old car (Hyundai Elantra). The part I applied was the inner rubber molding of door. [Before] [After] The smell is good~
I'm doing a test too...LOL...I really like the product.... http://www.detailingbliss.com/forum/f15/black-wow-review-2639.html
You shouldn't really use it on rubber as it'll clog the pores which need to breath for it to remain plyable, Its a product for hard plastics only.