Marine 31 Mildew Stain Remover and Cleaner 16oz for Marine Boat Home and Patio Surfaces
Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (16oz. - Single)
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Marine 31

Marine 31 Mildew Stain Remover & Cleaner - Marine & Boat, Home & Patio, Bathroom & Shower Cleaner (16oz. - Single)

|37 ratings

Key item features

  • Versatile Application: Effectively removes mildew stains from a wide range of marine surfaces including vinyl seat cushions, rubber fenders, fiberglass, gel coat, and canopies.
  • Gentle Cleaning: Erases stubborn stains without the risk of discoloring, dulling, or drying out vinyl seats or other fabrics.
  • Multi-Surface Formula: Professional strength cleaner suitable for various household surfaces such as bathtubs, decks, vinyl siding, kitchen and bathroom tile, grout, showers, countertops, and sinks.
  • Effortless Stain Removal: Eliminates even severe mildew stains without the need for abrasive power washing or scrubbing.
  • Simple Usage: Easy-to-use application involves spraying, allowing to sit for 1-3 minutes, agitating with a brush or towel, and then rinsing and drying.
  • Smart Chemistry: Relies on advanced chemistry rather than volatile cleaners to safely and quickly remove stubborn mildew stains.
  • Convenient Sizing: Available in multiple sizes, including 16oz. bottles and 128oz. (gallon) options, with bundled kits also offered.
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4.9 out of 5 stars
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37 ratings27 reviews
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  1. 5 stars95% (35)
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Showing 1-3 of 27 reviews

Jul 3, 2025
Reviewer name: Fat M.
5 out of 5 stars
5 out of 5 stars review

Highly effective

Marine 31 worked like a charm. I bought a gallon be cause my 30 yr old pontoon vinyl was getting pretty gray. I used about a cup (8oz) and surprisingly clean and white. It does include a mild acid so I was sparing and careful. I recommend highly and will next apply the protectant and may review.

Review from autogeek.net
Helpful?76R7MB3V1S5I1483978203
Apr 3, 2025
Reviewer name: Candi
5 out of 5 stars
5 out of 5 stars review

Marine 31 Mildew Stain Remover

Mildew remover works like magic. Minimal scrubbing and mildew is gone. Recommend.

Review from autogeek.net
Helpful?76R7MB3V1S5I1483978203
Jun 16, 2025
Reviewer name: Bob
5 out of 5 stars
5 out of 5 stars review

Amazing.

Made the job of cleaning the aluminum siding on my garage so simple, took less than 20 minutes. I would highly recommend trying it out for sure.

Review from autogeek.net
Helpful?76R7MB3V1S5I1483978203
Current price is $21.99
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Shipping fee $6.95
Sold and shipped by Autogeek
4.916666666666667 out of 5 stars
4.9 stars out of 5, based on 12 seller reviews(4.9)
Extended holiday returns
Free Holiday returns until Jan 31