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 ScotchGuard Water Repellent

ATTENTION:  Did you know you can invalidate your manufacturer's factory warranty by using ScotchGuard like water repellents?

There is a significant difference between ScotchGuard 'water repellent' and a true fabric protector...

ScotchGuard and other silicone based water repellent fabric treatments are inexpensive products common in the Fabric-Care, Marine, RV, and Outdoors industries where they are sold to protect and "waterproof" fabrics of all kinds including those used on furniture, tents, car seats, boat covers, awnings, carpeting, and outdoor furniture.

It is true that silicone water repellents such as ScotchGuard provide good, albeit short-lived water repellency...

Here's what these products don't advertise:

  • Silicone treated fabrics soil more readily than untreated fabrics.

  • When soiled, ScotchGuard treated fabrics are much more difficult to clean than untreated fabrics.

  • Silicone treated fabrics have zero resistance to oil based staining agents such as oils from your skin, sun tan lotions, smoke and emissions from barbecues, cars, and boats.

  • Silicone water repellents cause oil based stains to bond almost indelibly to treated fabrics.

Isn't it ironic that the same product you spend money on to protect your investment can instantly cause the fabric to soil more quickly than leaving it untreated?


Don't Make this Critical Mistake!

Did you know that by simply using a product such as ScotchGuard you might actually void your Manufacturers Warranty?

For Example: Sunbrella� Fabrics, manufactured by Glen Raven Mills, is well known as the best quality fabric for most outdoor applications. Sunbrella� is used internationally in most commercial awnings, most of the world's fabric automotive convertible tops, and in a high percentage of marine covers, bimini tops and boat enclosures. Sunbrella� is extremely resistant to UV light, but after cleaning or a lengthy period of exposure may require treatment to replenish lost repellency.

The use of silicone water repellents such as ScotchGuard is specifically recommended AGAINST by Glen Raven Mills and can void the multi-year factory warranty.


With all that is known about ScotchGuard...why would anyone ever use it?

People continue to use these products for various reasons:

  • Familiarity with the product:  Many people have used ScotchGuard in the past making it an item that they feel comfortable using.

  • Many decades and hundreds of thousands of dollars have been spent in marketing the product to the public, making the brand a household name.

  • Not everyone has taken the time to do the research and therefore simply does not understand the vast differences between these products. 


So What Do I Use to "Safely" Protect My Fabrics?

True fabric protectors will provide excellent water repellency, but in contrast to silicone treatments, a true fabric protector will also:

  • cause the treated fabric to resist soiling

  • make the fabric easier to clean when it becomes soiled

  • resist both water and oil based stains 

Although even the lowest grade of fabric protector will typically out-perform ScotchGuard, there is a product that truly stands out from the rest:

Remember Glenn Raven, the largest manufacturer of outdoor fabrics...the only product Glen Raven Mills recommends for treating their flagship product Sunbrella� is 303 High Tech Fabric Guard.  In fact, they feel so strongly that 303 High Tech Fabric Guard is the best product on the market, not only will using this product not invalidate their warranty, but they've also authorized their logo to be used on the front label!

Click for Sunbrella's Website


Product Comparison:


Silicone Products

303 HT Fabric Guard�

Water Repellency + Excellent + Excellent
Oil Repellency* � None + Yes: Excellent
Soil Resistance � Attract Dirt & Dust + Yes: Excellent
Soil Release � Impedes Release + Facilitates Release
Coverage � 100-200 sq. ft. / gal + 500-800 sq. ft. / gal
Durability � Short: few months + Long: Longest Lasting
Mildew* � Promotes Mildew + Resists Mildew
Discoloration � Can alter color/feel + Will not Discolor
Odor* � Strong Pungent Odor + Mild
Finish Compatibility* � Non-Compatible + Compatible
Mfg. Recommended � No + Yes

Powerboat Reports:  A Consumer Resource Publication for the U.S. Marine Industry Raves:

  • Rated the Best...
  • "The 303 is our winner!"
  • "303 Fabric Guard outdoes our old favorite..."

303 High Tech Fabric Guard is safe and effective on all synthetic and natural fabrics and blends.  For polyesters, nylons, acrylics, olefins, cotton, wool, silk, and natural leathers including suede.  Manufacturer recommended for use on too many fabrics to list them all here. 

303 HTFG won't change the feel, color, breathability, texture, or flammability of fabric and is 100% non-toxic and odorless once dry.



If you are not totally satisfied with Fabric Guard, simply return the unused portion along with a copy of your receipt, within 12 months from the time of purchase for a full refund.


Customer: Elaine Prine
Rating: (2/19/2009)

Great products!

Living in Florida with humidity and a potential for mildew, the My Boat Store products and finishes have kept our furniture like new.  Glad we found "My Boat Store". 

No Mildew in Monticello, Elaine

Customer: Ruth
Rating: (3/16/2009)

High Tech Fabric Guard is great!

I ordered the 32oz spray bottle to try this out.  It arrived very quickly. Since it arrived, I have used it on a 10'x10' canopy, a baseball bag, and a couple of baseball caps (we play a lot of baseball in the rain!).  I like it so much I've recommended it to the other baseball moms and I'm now going to order a gallon.

Rating: (2/11/2009)


This product is used on my boat cover. So far it is keeping the weather out of the and dirt and debris comes off of the cover easily.

Customer: michael barrett
Rating: (3/30/2009)

review feedback

100% satisfied. I figured that if your product was meant for a boat, it must be outstanding for a car's interior. Many Thanks!

Mike B. 

Customer: rudy2zdy
Rating: (3/17/2006 5:54:33 AM)

I used 303 High Tech Fabric Guard on my patio chairs (very porous poly-something weave) and a year later when it rained, the rain just pooled there in the seat. I've also gotten no deterioration from the sun, even thought these chairs sat in the summer Sacramento CA sun for months.

Customer: Dorothy Kres
Rating: (10/22/2007)

303 High Tech Fabric Guard

I do not ever write about products.   However, this product is so amazing that I want to thank The Boat Store for making it available.  I do not have a yacht, I don't even have a boat right now but I have bought 3 gallon plus of this marvelous product to spray and protect MY NEW LIVINGROOM FURNITURE.   Last year, I bought dining room chairs which cost over $476.00 each.  They are so beautiful and I immediately sprayed them with the Fabric Guard.  It is wonderful.  The water just beads off them and gives me the security that my investment in fine furniture is protected.  This year, I  bought a large new off white couch, extra large ottoman, and large lounging chair, with another stuffed recliner.  I was able to double spray all of these pieces for protection twice and I love the gorgeous off white color that makes my living room look so elegant.  It dried and you can never tell it has been sprayed.

I have now ordered another gallon for the decorator pillows, and the other cream color couch that I have in the living room.  Wow, this stuff is great and worth every penny I am paying for it. 

Furniture stores will charge you a lot of money for each  piece of furniture for "their"  own protected coating.  The may give your furniture a fast weak coating.  When I do my own furniture with the #303 Tech Fabric Guard I can do several coats to insure I have safely protected my expensive new furniture.  This saves me so much money and gives me the superior quality protection I need.

Thank you so much to the nice people at MyBoatStore for their courteous, and efficient product and service.  TRUST IS PRICELESS.

Sincerely,  Dotty Kres,  Cape Coral, Florida        

Customer: Kevin L.
Rating: (2/12/2009)

303 High Tech Fabric Guard ROCKS!

I used 303 high tech fabric guard to waterproof all of my snowboarding pants and jackets. i have already had ample time to test my gear in the snow and the product works perfectly! I also used it on my golf bag and golf jacket and again the water was repelled from my valuables and myself with 100% effectiveness. I am extremely happy with the results and have recommended 303 High Tech Fabric Guard to my friends.

Sincerely, Kevin L.




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