Powerful enough to protect fabrics in the harshest environment ...outdoors. Yet 303 High Tech Fabric Guard is safe for the finest fabrics, wool, silk, and fine leathers - including suede.  On outdoor fabrics, 303 High Tech Fabric Guard restores lost water repellency and stain repellency to factory new levels. 303 High Tech Fabric Guard resists soiling, impedes mildew formation and helps protect against the sun's harmful UV rays. Proper maintenance with 303 Products will add to the life of your fabrics, save you money, and ... It's Easy !

303 High Tech Fabric Guard is powerful enough to protect fabrics in the harshest environment ... outdoors ... Yet safe enough for the finest fabrics. 

Property

Silicone Products

303 HT Fabric Guard

Water Repellency

Excellent

+ 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

Here is a Comparison Chart rating 303 High Tech Fabric Guard against Silicone Based Products: