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Marine 31 Mildew Remover Gallon & 20 oz. Combo

Marine 31 Mildew Remover Gallon & 20 oz. Combo
Money-saving combo includes gallon plus a full 20 oz. bottle!

Marine 31 Mildew Remover quickly and safely removes stubborn mildew stains on virtually all marine surfaces, including vinyl seat cushions, rubber fenders, fiberglass, gel coat, canopies, and more! Marine 31 Mildew Remover forgoes volatile cleaners and instead relies on smart chemistry; even severe mildew growth is no match for the incredible cleaning power of Marine 31 Mildew Remover.

Marine 31 Mildew Remover is the best boat mildew cleaner available!If youre a boater, chances are youve dealt with stubborn mildew stains on vinyl cushions. If youre reading this product description, chances are youve been less than satisfied with the performance of other so-called marine mildew cleaners. Fortunately for you, weve compared Marine 31 Mildew Remover against other marine mildew cleaners and have found that it removes mildew stains faster, with less effort.

Not all marine mildew removes are created equal! Most over-the-counter marine mildew cleaners rely on heavy concentrations of bleach and other volatile chemicals that actually cause more harm than good. Marine 31 Mildew Remover removes stubborn mildew stains without discoloring, dulling, or drying out vinyl surfaces. Best of all, it still retains the powerful cleaning ability to remove mildew stains FAST!

Use Marine 31 Mildew Remover on:
  • Vinyl cushions and chairs
  • Rubber fenders
  • Fiberglass
  • Gel coat
  • Canopies
  • Boat tops
Marine 31 Mildew Remover works wonders for household cleaning as well! Use this professional strength formula to clean tile, grout, showers, bathtubs, counters, and sinks.

Marine 31 Mildew Remover works FAST!Directions:
  1. Spray directly onto surface and allow 1-3 minutes for penetration.
  2. If necessary, agitate surface with a brush or terrycloth towel.
  3. For stubborn stains, allow cleaner to penetrate for 5 minutes before agitating.
  4. Thoroughly rinse and dry surface.
  5. Follow with Marine 31 Mildew Guard to protect treated surfaces.
Includes 128 oz. and 20 oz. bottle with sprayer.

Made in USA

Marine 31 Mildew Remover Gallon & 20 oz. Combo
Item #: M31-372-COMBO
Our Price: $71.98
Sale price: $57.99 - You Save $13.99 (19%)
Availability: Usually ships the same business day

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Product Reviews

24 Reviews
96% (23)
4% (1)
0% (0)
0% (0)
0% (0)
100% Recommend this product (24 of 24 responses)
THIS STUFF IS ABSOLUTELY AMAZING!!!!! We have tried everything on our boat. Other chemicals only got some things out but not everything. Our boat still looked dirty!! We moved and unfortunately neglected our boat for 2 years because we were soo busy working on house. Our boat & seat cushions looked horrible! We wanted to clean our boat up good and start using it again. As a last option, we found this online and decided to buy it and give it a try. I'm telling you our seat cushions are now white as snow.....literally. It's amazing! And we are soo happy!!!
Citrus County FL
Works amazing on mildew
I found Marine 31 via YouTube. This stuff its amazing. I tried everything to clean up a boat I had just bought. This stuff with a 2 minutes speak worked where nothing else would.
Pass Christian, MS
Worth the cost
Simply the best mold and mildew remover I€™ve ever seen. I was hesitant about the price but the product is awesome. Most of the mold and mildew was dripping off my chairs before I even rinsed with water.
ProsEasy and effective
Great product
I wish I had taken pictures of before and after!
Great product
Works as described
Splendora, Tx
The Absolute Best!!!
I€™ve tried everything I could get my hands on going on 4 years now and have practically scrubbed a hole in my vinyl seats on my pontoon boat and still could not get rid of it all. This year parts of my seats were totally black and I was thinking I may need to replace them. Then I found Marine31. It feels and smells like bleach, but I€™ve tried bleach and it is not the same. I sprayed Marine31 on my seats and within a couple minutes there was absolutely no trace of mildew/mold on my seats! I didn€™t even have to scrub them. I€™ve even used it in my tile shower in spots I couldn€™t get totally cleaned. Marine31 is awesome!!!
ProsIt works!!!
ConsUse in well ventilated areas. The stuff is strong, but totally worth it!
North Carolina
Amazing & Easy!
Researched reviews of all mildew remover products, and decided to try Marine 31. It was amazing! Mildew on boat seats literally began disappearing upon spraying. Very little scrubbing involved.
Paducah ky
Works Good
At first it didnt do much for us but im impatient. We sprayed it a few times and waited then done the process and was was definitely lighter but not gone. So we knew it was about to rain so we just sprayed everything real quick and got out. The next day after it set on everything it was 85 percent gone. I am very pleased there was alot of mold and the vinyl was white. After being completely done we took a vinyl spray that works amazing in water and does not peel or come off and put a light thin coat over the left over spots and it is like new. Without marine 31 I believe the vinyl spray would not had covered it up. So glad we got a gallon of it. We also used it on a old fourwheeler that has set for years and just spraying it made it look new again. We didnt have to scrub or anything. I love it and ill buy a gallon everytime I get close to running out. Not to mention what it done to the side of the house and the showers! No scrubbing for this girl!
ProsIt actually works
ConsAlittle prices but worth it! You get what you pay for!
Terrific product
Effective product that easily removes mildew! Spray and wait a few minutes equals instant results. Save money and choose this product first.
East Tx
So easy!
The annual dreaded task of cleaning our boat upholstery has become an easy maintenance task due to Marine 31 mildew remover. It's incredibly effective!
ProsEasy to use and quickly effective.
ConsJug cap had seeped a small amount of contents during shipping.
Owens Cross Roads, Alabama
This product does exactly as advertised! Exceptional!
Houston, TX
Works like magic!
Wow my pontoon was completely covered in mildew and after spot testing other products I almost gave up and thought I'd have to redo all my seats, it was that I thought, until I found marine 31 on Google and after so much good feedback I had to see it to believe it myself. When received I sprayed it and you can immediately see it work it's magic! It was very easy to use spray, soak a minute and wipe didn't even have to scrub. Attached are my before and after pictures my boat looks new again! Will definitely buy it again.
ProsIt works!!! Easy to wipe
ConsBleach smell Will bleach clothing if it comes in contact Wear gloves
Bradenton, FL
Reviving Old Flotation Gear
Helped a friend who bought a used boat with flotation gear left in the bow (outside) for a year.

Was advised by the company that detailed the hull that the gear couldnt be salvaged.

We are talking about 10 orange jackets 2 ski belts and small canvas.

Decided to take this project on to try to save my buddy some money. After research, I came accross reviews (and demos) of locally purchased "suggested" name brand products (and their dissapointing results), I Saw the video for Marine31 by ShipShape tv and thought I'd give it a try.

All gear is revived now with Marine31 )with very little effort).

I also decided to use it on the vinyl seats and saw huge improvement that I thought were already cleaned, using other automobile type cleaners.

Huxley, TX
Great Product
I've used a lot of different products over the years to remove mold and mildew on boats and this is by far the best product I have used. I would definitely recommend this product.
best ever used
Good Stuff
I used this product to clean my 22 ft. pontoon boat that had quite a bit of mildew. The boat now looks like new. However, it did take quite a bit more product to remove the mildew than I anticipated. I used the 20 oz. bottle and 2/3 of the gallon. Hopefully I can stay ahead of the game with touch ups in the future to avoid using so much product. And BTW, be sure and wear old clothes you don't mind getting bleach stains on. This does smell strongly of bleach and bleached the jeans I was wearing. I anticipated that after a sample run and wore jeans for that purpose.
Awesome product Does am amazing job Can say enough The videos you see are true!!!

I am a boat dealer and we see horrible mold and mildew conditions ...My own chriopractor
tried it on his father inlaws boat THE WHOLE BOAT was covered and It worked ..They surprised him When they brought him to the dock He didnt think it was his boat !!!
Prosworks fast and does a beautiful job..
ConsSmells strong but that dissapates after a bit... So worth this little annoyance...
Baltimore, Maryland
Works great
This is powerful stuf. Make sure you use it in a well ventilated area. After spraying it on, the mildew just seemed to disappear. No scrubbing was required. I used it on my boat seats and on the inside of my portable garage cover. Worked great.
ProsEasy to use. No scrubbing required. A little goes a long way.
Wareham MA
This product WORKS!,,,,,,
I€™ve tried every mildew product out there with disappointing results. I happened to see this being used from another customer on Facebook so I decided to give it a try, IT WORKS.
ConsA easier to pour container would be nice.
Toms River, NJ
Mildew remover
Finally found a product that works. I have been trying to remove the mildew on the top of my vinyl boat seats for years with different products.
Marine 31 did the impossible and now I have my white seats back again.
ProsEasy to use.
ConsMy only concern is Marine 31 mildew remover smell like chlorine. I know chorine products over time will destroy the stitching. I don't know if there is chlorine in the product or not
Tallahassee, FL
Way better than its competitor!
The boat shop where I bought my boat gave me a free bottle of Starbrite but it didn't work very well. Went online to look up a better product and watched videos comparing Starbrite and Marine 31so I order the M31 and got the same results as in the video. Do yourself a favor and buy some M31, it really makes a huge difference.
victoria, bc
Great stuff but....
The good stuff: I used this stuff after trying so many other products without success. It did a great job removing stains and mildew from my seats. I followed the directions and as soon as I was done cleaning I wiped the seats down with a clean wet rag afterwards

The bad stuff: I left the rag I used with this stuff in a bowl for 2 days thinking I would go back on an area that was tough to remove the stains (this stuff removed about 95%). The rag had basically disintegrated into mulch. Now that made me wonder how the product reacted with my vinyl seat stitching. The product says its non acid based formula, but it makes me wonder. What ever you do get this stuff washed off your vinyl as quickly as you can
Florence, SC
Marine 31 is awesome!
Best cleaner I have ever used on fiberglass boats!
ConsLittle pricey!
105 Oak Valley Road, McDonough GA 30253
boat seats
works great!!