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303 PRODUCTS 303 High Tech Fabric Guard

Excellent protectant for Sunbrella upholstery and breathable foul weather gear

The only repellency product recommended by and for Sunbrella. Restores lasting water repellency to marine canvas. Stops leaks and protects against soiling and water and oil-based stains. Resists mildew formation and UV sun damage. Spray on, let dry. One pint treats 75-100 square feet of marine canvas. Also a great choice for fabric upholstery, carpeting and breathable foul-weather gear.

  • Pint, quart or gallon
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
303 High Tech Fabric Guard, Pint 185977 30616
In stock online.

$18.99

303 High Tech Fabric Guard, Quart 5358551 30650
In stock online.

$29.99

303 High Tech Fabric Guard, Gallon 151899 30670
Ships when available.

$112.99

Product Description

Excellent protectant for Sunbrella upholstery and breathable foul weather gear

The only repellency product recommended by and for Sunbrella. Restores lasting water repellency to marine canvas. Stops leaks and protects against soiling and water and oil-based stains. Resists mildew formation and UV sun damage. Spray on, let dry. One pint treats 75-100 square feet of marine canvas. Also a great choice for fabric upholstery, carpeting and breathable foul-weather gear.

  • Pint, quart or gallon

REVIEW SNAPSHOT®

by PowerReviews
303 Products303 High Tech Fabric Guard
 
4.1

(based on 26 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

87%

of respondents would recommend this to a friend.

Pros

  • Easy to use (20)
  • Protects well (20)
  • Weather proof (18)
  • Visually pleasing (7)

Cons

  • Doesn't work (3)

Best Uses

  • Outdoors (13)
    • Reviewer Profile:
    • Casual/ recreational (15), Advanced (10)

Most Liked Positive Review

 

Great product !

I recently bought a used boat with Sunbrella top on the bridge that leaked everywhere. It didnt just drip it ran in. I thought I would have to replace the whole top. A...Read complete review

I recently bought a used boat with Sunbrella top on the bridge that leaked everywhere. It didnt just drip it ran in. I thought I would have to replace the whole top. A West marine employee said to try 303 and I bought a gallon. I waited for a dry wind free day and applied the product. We didn't get any rain for days, but when we finally did, it was a 1/2 inch. No drips anywhere! Buy it, it is a super product. Great!

VS

Most Liked Negative Review

 

Faulty sprayer

As expensive as this product is, it was disappointing to have the sprayer break on about the 10th pull. Similar issues are noted in other reviews, so I have to assume it is...Read complete review

As expensive as this product is, it was disappointing to have the sprayer break on about the 10th pull. Similar issues are noted in other reviews, so I have to assume it is a recurring problem. I put the product in a windex bottle for application. Next time, I will apply with a brush. There is too much overspray. This was the same result with the few pumps I got out of the supplied bottle. At this point, I can't say if the product holds up to its claims. This is just to report the application frustrations.

Reviewed by 26 customers

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Displaying reviews 1-10

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(0 of 1 customers found this review helpful)

 
5.0

Used for past 10 years+

By leader 77

from Ridgeland, SC

About Me Advanced

Verified Reviewer

Pros

  • Easy to Use
  • Protects Well
  • Visually Pleasing
  • Weather Proof

Cons

  • Messy

Best Uses

  • Outdoor

Comments about 303 High Tech Fabric Guard:

I have used the Formula 303 Fabric Guard for over 10 years on my cars convertible tops. I lived in New Jersey and parked my car while at work 5 days per week. The car was garaged at night. Twice a year I would totally clean the top then apply a good wet coating. I sold my last convertible that was 12 years old and the top was still in great condition! I latest car is a 2005 Honda S2000 convertible- top still looks great. I have also used it on upholstered car seats and carpets with excellent results. I'm going to now us it on the carpets in my power boat.

(3 of 3 customers found this review helpful)

 
5.0

Great Results !!!!

By BH

from Ontario, Canada

About Me Casual/ Recreational

Verified Reviewer

Pros

  • Easy to Use
  • Protects Well

Cons

    Best Uses

    • Outdoor

    Comments about 303 High Tech Fabric Guard:

    Scrubbed down my full camper top to give it a good cleaning. Had it back on the same day and then out on the lake. It poured that night and the water came through the top as if it was not there. (sort of expected this) Went to West Marine the next day and the salesperson recommended the 303 High Tech Fabric Guard. Although higher in price than others, I have had good luck with other 303 products. I gave the top a quick cleaning again and let it dry and then applied the 303. 2 spray bottles worth on a full camper top on my 30 ft boat.We managed to go a full day without further rain so the product had good time to dry.
    Back out in the boat and rain again at night ................ WE WERE DRY !!!
    Easy to apply product, good coverage and minimal odour which did not seem to last too long at all. I will definately continue using this product on my boat camper top. Very happy with the results.

     
    5.0

    Great

    By randomac

    from muscle shoals, AL

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy to Use
    • Protects Well
    • Weather Proof

    Cons

      Best Uses

      • Outdoor

      Comments about 303 High Tech Fabric Guard:

      Protects Sunbrella fabrics

       
      4.0

      works as advertised

      By K2

      from Lake Monroe Indiana

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Easy to Use
      • Protects Well
      • Weather Proof

      Cons

        Best Uses

        • Canvas

        Comments about 303 High Tech Fabric Guard:

        This product works as advertised. However, you will use a quart for a canvas Bimini Top of approx 36 sq feet. I really "coated" the top. Make sure you provide ample drying time. But it works well. Would definitely recommend.

         
        4.0

        Good product - be careful about shipping

        By AJ

        from Portland, OR

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Sunbrella Recommends It

        Cons

        • expensive

        Best Uses

        • Outdoor

        Comments about 303 High Tech Fabric Guard:

        I bought a gallon of this and it arrived leaking all over the box due to being crushed by the shipper. West Marine sent me another gallon, packed exactly the same way despite my strong suggestion they pack it with a lot more padding. It arrived intact and I've applied it to my boat cushions (interior) after cleaning them. It seems to repel water very well. Jury is still out on the effectiveness of the product. I bought the best quality hand sprayer I could find to apply it, but it was difficult to apply a thin layer with this sprayer. Sunbrella recommends two light coats as opposed to the manufacturers recommendation for one coat. I used two coats (probably a bit heavy) and used 2/3 gallon to handle 10 cushions, upholstered only on the top side. Probably about 60 square feet total.

         
        5.0

        IT WORKS

        By randomac

        from muscle shoals, AL

        About Me Advanced

        Verified Buyer

        Pros

        • Easy to Use
        • Protects Well
        • Weather Proof

        Cons

          Best Uses

          • Outdoor

          Comments about 303 High Tech Fabric Guard:

          Really does restore/sustain waterproofing on canvas.

          (1 of 2 customers found this review helpful)

           
          1.0

          Not Worth it

          By Simply Hawaiian

          from Puget Sound

          About Me Casual/ Recreational

          Pros

            Cons

            • Ineffective

            Best Uses

              Comments about 303 High Tech Fabric Guard:

              After cleaning my Sunbrella bimini, I used the spray version of this product. Put the bimini back up, and it leaks even with a slight dew. I would hate to see the result in a downpour. Moving on to something else.

              (2 of 3 customers found this review helpful)

               
              2.0

              Faulty sprayer

              By Richard

              from Mooresville, NC

              About Me Casual/ Recreational

              Pros

              • Visually Pleasing

              Cons

                Best Uses

                • Outdoor

                Comments about 303 High Tech Fabric Guard:

                As expensive as this product is, it was disappointing to have the sprayer break on about the 10th pull. Similar issues are noted in other reviews, so I have to assume it is a recurring problem. I put the product in a windex bottle for application. Next time, I will apply with a brush. There is too much overspray. This was the same result with the few pumps I got out of the supplied bottle. At this point, I can't say if the product holds up to its claims. This is just to report the application frustrations.

                 
                5.0

                Works as advertised, purchasing again

                By Captain Mike

                from Cincinnati, Oh

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Easy to Apply
                • Easy to Use
                • Protects Well
                • Visually Pleasing
                • Weather Proof

                Cons

                  Best Uses

                  • Outdoor

                  Comments about 303 High Tech Fabric Guard:

                  Applied as instructed and the results was as described. Sheds water and protects my covers.

                  (0 of 3 customers found this review helpful)

                   
                  1.0

                  This stuff is a ripoff.

                  By Sailer Jim

                  from Clearwater, FL

                  About Me Advanced

                  Pros

                    Cons

                    • Ineffective
                    • Not Durable

                    Best Uses

                      Comments about 303 High Tech Fabric Guard:

                      16 ounces will only treat 12 square feet. Better get out your wallet, especially if you have to do this more than once a year.

                      Displaying reviews 1-10

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