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303 Fabric Guard

Water and stain repellent for outdoor fabrics

303 Fabric Guard

SKU 303FAB59 Rated 2.0 out of 5.0. 1 review Ask a question

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£5.99

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Size 59ml

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303 Fabric Guard 303 Fabric Guard £5.99
Click & Collect: Ilkeston · FreeMost eligible orders are ready within 5 minutes during opening times. Please wait for your collection-ready confirmation before travelling. Click & Collect: Ilkeston Not available for this option. Options that can be collected show it here. How it works

303® Fabric Guard keeps fabrics fresh, soft, colourful and breathable…all while adding a powerful coating to repel water and prevent the most serious of stains.

  • Restores lost water and stain repellency
  • Made for outdoor synthetic and natural fibres
  • Keeps fabric colour, feel and breathability
  • Guards against water-based stains
  • Helps stop wicking along convertible roof seams
  • Cures in 12 to 24 hours
  • Covers 40 to 75 sq ft per 473ml
  • Four sizes from 59ml to 3.78L
Read the full description

Full Description

303® Fabric Guard keeps fabrics fresh, soft, colourful and breathable…all while adding a powerful coating to repel water and prevent the most serious of stains.

Use it to keep rugs clean and covers blemish-free. You can even spray it on your convertible top’s seams to prevent wicking.

When applied to clean and dry fabrics, 303® Fabric Guard restores lost water and stain repellency to straight-from-the-factory levels. Keep all your favourite fabrics crisp and clean for years to come.

DIRECTIONS:

Product liquid and spray are flammable, keep product and treated article (until dry) away from heat, sparks or open flames. Do not smoke when applying 303® Fabric Guard. Spray until evenly wet, overlapping sprayed areas.

NOTE: Reduced coverage when applied with paint roller or brush. Apply to fabric above 70°F/21°C. (For quicker drying/curing and best results, apply in full sun.) Treated material must be protected from rain/dew until completely cured. CURING: 12-24 hours dependent on temperature. If these steps are performed correctly, the material will be water repellent at this point. 303® Fabric Guard will need reapplication depending on fabric exposure to sunlight and weather conditions; pour water on fabric to determine need to retreat fabric. COVERAGE: 40-75 sq. ft. (3.7 x 7m² per 16oz) depending on material and application method. ​

EXAMPLE USE CASES

PATIO CUSHION

Untreated: Cushions are stained and water soaks into the fabric.

Treated with 303 Fabric Guard: Water and soil repel from the fabric, prolonging its life.

UMBRELLA

Untreated: The umbrella is stained from outdoor elements and rain.

Treated with 303 Fabric Guard: Water and soil repel from the fabric and it is protected from outdoor elements.

More in Fabric Protectants.

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Key features

  • Water Repellent
  • Stain Repellent
  • Outdoor Fabrics
  • Stays Breathable
  • Convertible Roofs

The Drivers HQ

Expert Notes

303 Fabric Guard is a spray-on protector that restores lost water and stain repellency to outdoor fabrics, made for synthetic and natural fibres. We see it as the finishing step after cleaning a fabric convertible roof, awning, parasol, boat cover or garden cushion. It does not alter colour, feel or breathability, and it is not intended for interior car or home upholstery. Apply it above 21°C on clean, dry fabric, spray evenly and allow 12 to 24 hours to cure away from rain and dew. A 473ml bottle covers about 40 to 75 sq ft. Pair it with a dedicated fabric roof cleaner and a soft upholstery brush.

Perfect For / Suitable Surfaces

  • Fabric convertible roofs
  • Awnings and canopies
  • Parasols and umbrellas
  • Outdoor cushions and pillows
  • Boat covers and Bimini tops
  • Outdoor rugs
  • Patio furniture fabrics

Caution: The liquid and spray are flammable: keep the bottle and treated fabric away from heat, sparks and flames until dry. Use on outdoor fabrics only.

Technical Specifications

Product Type
Fabric Protector
Brand
303
Suitable For
Outdoor Synthetic And Natural Fibre Fabrics
Size
59ml, 473ml, 946ml, 3.78L
Application Method
Spray Until Evenly Wet In Overlapping Passes
Protection
Water And Water-Based Stain Repellency
Typical Uses
Convertible Roofs, Awnings, Canopies, Umbrellas, Boat Covers, Outdoor Cushions
Effect On Fabric
Does Not Alter Colour, Feel Or Breathability
Application Temperature
Above 21°C (70°F)
Cure Time
12 To 24 Hours, Temperature Dependent
Coverage
40 To 75 Sq Ft (3.7 To 7m²) Per 473ml
Flammability
Flammable As A Liquid, Keep Away From Heat And Flames

How To Use

Application

  1. Start with newly cleaned fabric that is completely dry.
  2. Work in a well-ventilated area in warm weather above 21°C, ideally in full sun for quicker curing.
  3. Keep away from heat, sparks and open flames, and do not smoke while spraying.
  4. Spray until the fabric is evenly wet but not saturated, overlapping each pass in a crisscross pattern.
  5. Spray rather than roll or brush it on, as a roller or brush reduces coverage.
  6. Wipe any overspray off glass or plastic with rubbing alcohol, washing-up liquid and water.

Aftercare

  1. Keep the treated fabric out of rain and dew until it has fully cured.
  2. Allow 12 to 24 hours for curing, depending on the temperature.
  3. Once cured, pour a little water on the fabric to check it is being repelled.
  4. Reapply when water starts to soak in, as sun and weather exposure wear the treatment.
  5. Clean and dry the fabric again before each reapplication.
  6. Store the bottle closed and upright, away from heat sources.

Top Tip: Treat convertible roof seams as well as the panels, since 303 recommends spraying seams to help prevent wicking.

Performance Benefits

  • Restores factory-level water repellency
  • Helps stop wicking at roof seams
  • Keeps original fabric colour and feel
  • Helps preserve the fabric's original UV resistance
  • Helps prolong outdoor fabric life
  • Protects outdoor fabric against soiling

Frequently Asked Questions

What does 303 Fabric Guard do?

It restores lost water and stain repellency to clean, dry fabric, which 303 describes as a return to straight-from-the-factory levels. It adds a coating that repels water and water-based stains while the fabric stays soft and breathable.

Can I use it on car seats or home upholstery?

No, 303 recommends Fabric Guard only for outdoor fabrics, not the interior fabrics of a house or vehicle. Use it on convertible roofs, awnings, umbrellas, boat covers and outdoor cushions.

Will it change the look or feel of the fabric?

No, 303 states it does not alter fabric colour, feel, flammability or breathability. It is made for outdoor synthetic and natural fibres.

How long does it take to cure?

Curing takes 12 to 24 hours depending on temperature. Apply above 21°C, ideally in full sun, and keep the fabric out of rain and dew until it has fully cured.

How much fabric does a bottle cover?

A 473ml (16oz) bottle covers about 40 to 75 sq ft, roughly 3.7 to 7m², depending on the material and application method. Coverage drops if you use a roller or brush instead of spraying.

Does it give UV protection?

Not directly. 303 explains that Fabric Guard protects the original UV resistance of outdoor fabrics by adding water repellency and stain resistance, which helps prolong the life of the fabric.

Is it flammable?

Yes, the liquid and spray are flammable, so keep the product and treated fabric away from heat, sparks and flames until dry. 303 states that once cured it does not affect the fire resistance of the fabric.

What sizes are available?

303 Fabric Guard is available in 59ml, 473ml, 946ml and 3.78L sizes, with UK-wide delivery from The Drivers HQ.

HQ Suggests Tips & Insights

  1. Brush loose dirt out of the weave before cleaning and treating.
  2. Apply in warm, dry weather above 21°C.
  3. Treat one section at a time so the coverage stays even.
  4. Mask nearby paint, glass and plastic before spraying a convertible roof.
  5. Check the forecast so no rain falls while the treatment cures.
  6. Use it straight from the bottle, as no mixing or dilution is needed.
  7. Repair torn seams first, as it will not seal a leaking roof.
  8. Visit our walk-in store in Ilkeston, Derbyshire for fabric care advice.

The Brand

303

303 is an American surface protection brand that has been a trusted name in its field since 1980. Its protectant was first developed to protect aircraft rubber wing boots at high altitude, and the formulas now care for cars, boats, RVs and outdoor gear. Since 2012, 303 has belonged to Gold Eagle Co., the Chicago company behind STA-BIL, which says its branded products, 303 included, are manufactured in the United States at its facilities in Chicago. The brand line is Proven to Protect.

At The Drivers HQ we stock 303 online with UK delivery and in our Ilkeston shop. Popular choices include 303 Aerospace Protectant, the Automotive Speed Detailer and the Slick Shine Ceramic Detailer.

Shop all 303
303 Speed Detailer, Protectant Wipes, Aerospace Protectant and Wheel & Tire Cleaner on a black display plinth

303 protectants, trim and leather care

Aerospace Protectant. The product 303 is known for, in 296ml, 473ml and 946ml. 303 describes it as a water-based formula with no petroleum distillates, alcohol, mineral oil or harmful silicone oils, which dries to a clear matte finish, blocks UV to help stop fading and cracking, and repels dust and stains. It suits vinyl, plastic, rubber, finished leather and fibreglass, but not clear plastics, suede, fabrics, flooring, gauge panels or headlights. Spray it onto a clean, dry surface out of direct sun and wipe it completely dry, because it does not air dry; 303 says to reapply every 30 to 45 days. The same protection comes as Automotive Protectant 473ml and in a tub of 25 Protectant Wipes.

Trim, seals and tyres. Rubber Seal Protectant comes in a 101ml bottle with an applicator for door, window, bonnet and boot seals, and helps them keep their elasticity. Graphene Trim Coating is a non-greasy coating for faded trim that 303 rates at up to 6 months, and Tyre Coating & Protectant is a water-based, sling-free aerosol that dries to a satin shine with no brush needed.

Leather. A two-step system: Leather Cleaner lifts stains and preps the surface, then Leather Conditioner softens the leather and adds UV protection that 303 rates at 30 days. Both suit finished and unfinished leather.

Fabric and stains. Multi-Surface Cleaner removes spots of coffee, oil, grease and ink from water-safe surfaces, and Mold & Mildew Cleaner + Blocker removes mould stains without bleach. Fabric Guard restores water and stain repellency to outdoor fabrics, such as a convertible roof's seams, and is not for interior fabrics.

Shop more plastic and vinyl protectants, trim dressings and leather cleaners.

303 Speed Detailer being sprayed onto the bonnet of a blue car on a driveway

303 detailers, coatings and wheel cleaners

Between washes. The Automotive Speed Detailer is mist-on, wipe-off gloss for paint, plastics, fibreglass, chrome and glass, with anti-static properties and UV blockers. The Slick Shine Ceramic Detailer is infused with SiO2 and carnauba wax, works on wet paint as a drying aid or on dry paint, and is safe on matte paint. The Graphene Detailer tops up existing coatings, works wet or dry and lasts up to 90 days, and the Automotive Spray Wax cleans off water spots and dust and leaves protection rated at up to 90 days.

Coating. Graphene Nano Spray Coating is a graphene oxide based spray coating that 303 rates at 12 months. It is strongly hydrophobic, helps reduce water spots by lowering the surface temperature, can be applied in direct sunlight and also goes on glass, wheels and trim.

Wheels. Wheel & Tire Cleaner is a foaming, acid-free and non-corrosive cleaner for wheels and tyres: spray onto cool, rinsed surfaces, leave for 2 minutes, agitate and rinse. Heavy Duty Wheel Cleaner is acid free too, removes brake dust and caked-on dirt, and also works as a paint decontamination spray for embedded fallout before polishing.

Shop more quick detailers, paint sealants and wheel cleaners.

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Customer Reviews

2.0 / 5

Based on 1 review

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HQ Rewards members who bought it earn 10 points for an approved review, 20 with a photo or video, whatever the rating. Review policy

  1. JoVerified buyer

    I think it works well but the spray was faulty on my bottle and had to decant it into another spray bottle

    Reply from The Drivers HQ

    Sorry you felt that a bad spray head makes this product rated so low. If you order again or come in please let me know I'll throw in a spray head to make up for it. I hope you found the product good, though.

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