Works great for cleaning black streaks and grime on the sides of my pontoon boat. After trying many different cleaners and hours of scrubbing, I was ready to give up and have my boat re-painted. I finally purchased a bottle of Bio-Kleen Black Streak Remover after talking to a friend and tried it on my pontoon. Wow, the black streaks and grime came off easily. It was as simple as spraying on and wiping off.

Our family has a 2000 Misty Harbor 20' Pontoon boat, and is kept outside during the summer months with the snap cover on. Do to all the rain over the years the snaps started to create black streaks, and I tried many different household cleaners with no luck. After reading many reviews I decided to give this product a chance and I was very happy with the results.



At first I tried a small spot toward the back of the boat because I had a concern with the paint coming off. When I did couple of wipes I noticed a white haze on the cloth, and I was very concern. However, after trying again and looked at it closer I noticed I was just taking the old oxidize paint off. This would be expected for a 16 year old boat with the sun beating on it. I was able to clean pontoon boat very quickly (60-65 degrees outside), and I washed it to make sure I left no cleaner was left behind. The only thing I would pay attention is to not get it on the registration sticker. It made the color bleed, but once I washed the cleaner off I had no concerns. No other boat stickers or pontoon decals was affected.



I was amazed how well it worked, and made sure I sprayed it on a cloth when applying from the bottom up. I strongly recommend this product because it works as well as the video advertise, and spend the extra $$ for the 32oz bottle.

As a travel trailer owner nothing bothers you more than those ugly black streaks, I have been using every product under the sun including my own home brews, nothing worked untile now. Spry it on wipe it off it is that easy no more sore arms Thank You BIOKLEEN!!!!!

This product worked just as promised. It removed all the black streaks with easy wiping. My boat was only 2 years old but looked 10. Now it looks brand new

This is one of the best products to clean so many different things from steaks on gutters to streaks and black marks on your boat. Marks I thought wouldn't come off did easily just by using this product.