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Water-based conditioner for rubber door seals

303 Rubber Seal Protectant

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£11.99

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Size 101ml

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303 Rubber Seal Protectant £11.99
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
  • Conditions door, window, bonnet and boot seals
  • Protects against drying and cracking
  • Restores elasticity to ageing seals
  • Rejuvenates colour on old seals
  • Attached foam applicator for tight spots
  • 100% water-based and not a dye
  • Dries to the touch without attracting dust
  • Compact 101ml bottle
Read the full description

Full Description

  • 303 Rubber Seal Protectant provides protection against drying and cracking in extreme temperatures for weather seals.
  • Restores seal elasticity and conditions weather seals for doors, windows, hoods and trunks.
  • Perfect for use on cars, boats, RV's or any rubber weather seal that needs conditioning and it will also rejuvenate color to old seals.
  • Includes an easy-to-apply applicator to get into the tough spots around doors, windows, hoods and trunk seals. Also great for use on windshield wipers.
  • Made in the U. S. A.

More in Tyre Dressings.

Tracked UK delivery, or collect eligible orders from our Ilkeston store.

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Key features

  • Rubber Seals
  • Foam Applicator
  • Water-Based
  • 101ml Bottle
  • Made In USA

The Drivers HQ

Expert Notes

303 Rubber Seal Protectant is a 101ml water-based conditioner for the rubber weather seals on doors, windows, sunroofs, bonnets and boots. It protects against drying and cracking in extreme temperatures, restores elasticity and rejuvenates the colour of old seals. It is not a dye: the formula dries to the touch and will not attract dust or dirt, and the attached foam applicator makes it easy to work into corners. It suits older cars with tired seals, cars that stand for long periods, boats and motorhomes. Apply it to clean, dry seals, repeat on badly weathered rubber and reapply every 3 to 5 weeks, as 303 recommends. Keep the bottle away from frost. Made in the USA.

Perfect For / Suitable Surfaces

  • Door seals
  • Window seals
  • Sunroof seals
  • Bonnet seals
  • Boot seals
  • Boat rubber seals
  • Motorhome door and window seals
  • Windscreen wiper rubbers

Caution: Do not allow the product to freeze. Apply only to clean, dry rubber and let it dry fully before closing doors or windows.

Technical Specifications

Product Type
Rubber Seal Protectant
Brand
303
Size
101ml (3.4oz)
Formula
100% Water-Based Conditioner, Not A Dye
Applicator
Attached Foam Applicator
Suitable For
Door, Window, Sunroof, Bonnet And Boot Seals
Vehicles
Cars, Boats And Motorhomes
Finish
Dries To The Touch, Does Not Attract Dust Or Dirt
Reapplication
Every 3 To 5 Weeks
Storage
Do Not Allow To Freeze
Country Of Origin
USA

How To Use

Application

  1. Shake the bottle well before use.
  2. Clean the seals and make sure they are completely dry.
  3. Apply an even coat with the attached foam applicator, working along each seal.
  4. Use the applicator edge to reach corners around doors, windows, bonnet and boot.
  5. Leave the product to dry fully before closing doors, windows or the sunroof.
  6. Repeat on older or severely weathered seals as needed.

Aftercare

  1. Reapply every 3 to 5 weeks, as 303 recommends.
  2. Inspect the seals regularly for signs of drying or cracking.
  3. Wipe the seals clean during regular washes so grit does not build up.
  4. Store the bottle indoors where it cannot freeze, rather than in a cold garage or boot.
  5. Close the bottle securely after each use.

Top Tip: Treat door seals before winter so they are conditioned before frost and ice arrive.

Performance Benefits

  • Helps seals resist drying and cracking
  • Brings back flexibility to tired rubber
  • Revives the colour of faded seals
  • Protects seals in extreme temperatures
  • Dries fully to the touch
  • Reaches tight spots easily

Frequently Asked Questions

What does it do?

303 Rubber Seal Protectant conditions rubber weather seals on doors, windows, bonnets and boots. It protects against drying and cracking in extreme temperatures and restores elasticity.

Is it a dye?

No, 303 Rubber Seal Protectant is not a dye. It is a 100% water-based conditioner that restores the look of dull, faded seals.

How do I apply it?

Shake well, make sure the seal is clean and dry, then apply evenly with the attached foam applicator and let it dry fully.

How often should I reapply it?

303 recommends reapplying every 3 to 5 weeks, and repeating as needed on older or severely weathered seals.

Will it attract dirt?

No, the formula dries to the touch and will not attract dust or dirt.

What size is it?

It comes in a 101ml (3.4oz) bottle with an attached foam applicator.

Can I use it on boats and motorhomes?

Yes, it is made for cars, boats, motorhomes and any rubber weather seal that needs conditioning.

Where can I buy it in the UK?

Order 303 Rubber Seal Protectant from The Drivers HQ with UK-wide delivery, or buy it at our walk-in store in Ilkeston, Derbyshire.

HQ Suggests Tips & Insights

  1. Clean and dry each seal before applying.
  2. Test on a small hidden area of the seal first.
  3. Let it dry fully before shutting doors or windows.
  4. Reapply every 3 to 5 weeks to keep seals conditioned.
  5. Give old, weathered seals a second application.
  6. Keep the bottle somewhere it cannot freeze.
  7. Treat sunroof, bonnet and boot seals as well as doors.
  8. Wipe any excess off glass and paint with a microfibre cloth.

The Brand

303

303 is a surface protection brand whose story began in 1980, when its founder saw that the aviation and aerospace industry needed a treatment to protect rubber and plastics against UV and ozone degradation. Its flagship Aerospace Protectant was originally engineered to protect aircraft rubber wing boots at high altitudes, and the range now covers protectants and cleaners for everything from cars and boats to outdoor furniture and gear. Since 2012, 303 has been part of Gold Eagle Co., the Chicago company behind STA-BIL, and the brand describes its products as Proven to Protect.

The Drivers HQ stocks 303 for the inside and outside of the car. Plastic and vinyl protection comes from 303 Aerospace Protectant, 303 Automotive Protectant Interior & Exterior and 303 Protectant Wipes, with Rubber Seal Protectant for seals and Graphene Trim Coating for trim. For paintwork there are Graphene Nano Spray Coating, Automotive Spray Wax, Automotive Speed Detailer and Graphene Quick Detailer, and Heavy Duty Wheel Cleaner takes care of the wheels. Leather Cleaner and Leather Conditioner look after leather, Multi-Surface Cleaner and Mold & Mildew Cleaner + Blocker tackle stains, and 303 Fabric Guard protects outdoor fabrics such as a convertible top.

303 suits drivers who want protection that is easy to apply, as well as detailers finishing off a full valet. After the wash, a spray coating or spray wax protects the paint, and a quick detailer keeps the finish glossy between washes. Protectant then goes onto clean, dry dashboards, trim, tyres and seals, and 303 says it dries to a clean, matte finish with no slick residue. Convertible owners can add Fabric Guard for the fabric roof, as 303 recommends it for outdoor fabrics rather than interior fabrics, while the leather cleaner and conditioner suit cars with leather seats.

Buy 303 from The Drivers HQ with tracked UK-wide delivery, or visit our walk-in store in Ilkeston, Derbyshire, where Click & Collect is free. Whether you are replacing a favourite bottle of Aerospace Protectant or putting together a full set of interior and exterior protection, you can order 303 alongside the rest of your detailing kit in one basket, and advice is available before you buy if you are not sure which product suits a surface.

Shop all 303
303 Aerospace Protectant (3 Sizes) - The Drivers HQ

From Aircraft Wing Boots to Cars

303 traces its story back to 1980. In Gold Eagle's announcement of the acquisition, the company explains that founder Dennis A. Praegitzer recognised that the aviation and aerospace industry needed something that did not exist: a protective chemical treatment for rubber and plastics that actually protected against UV and ozone degradation.

That need produced the product 303 still calls its flagship. The brand says Aerospace Protectant was originally engineered to protect aircraft rubber wing boots at high altitudes, and it describes today's formula as water-based and silicone-free, drying to a clear matte finish with no greasy film. The same UV protection is now used on dashboards, convertible tops, tyres and trim, as well as boat seats and patio furniture.

In 2012 Gold Eagle Co., the Chicago company behind STA-BIL, acquired 303 Products, and 303 is now presented on Gold Eagle's website alongside its other brands. The brand says its formulations undergo rigorous internal testing and have built over 40 years of field-tested trust, and it sums up its range with the line Proven to Protect.

303 GRAPHENE NANO SPRAY COATING 473ML - The Drivers HQ

Protectants, Coatings and Fabric Care

303 describes Automotive Protectant as delivering UV protection for a vehicle's rubber, vinyl and plastic surfaces, whether that is the dashboard, trim, tyres or weather seals. It dries to a clean matte finish and repels dust, dirt and stains, and the brand says one application gives protection for up to 30 to 45 days. 303 also stresses buffing it dry with a clean towel, because the product does not air dry.

For paintwork, 303 Graphene Nano Spray Coating is a graphene oxide based coating that the brand says protects for up to 12 months and lowers surface temperature to reduce hard water spots. It bonds without prior paint correction or decontamination, can be applied in direct sunlight and works on glass, wheels and trim as well as paint. Between washes, 303 Automotive Speed Detailer adds gloss, with anti-static properties and UV blockers in its formula.

303 Fabric Guard restores lost water and stain repellency to outdoor fabrics, and 303 says it is recommended by Sunbrella, the outdoor fabric manufacturer. On a car, the brand suggests spraying it on a convertible top's seams to prevent wicking, and it does not recommend it for a vehicle's interior fabrics. The Drivers HQ stocks it alongside 303 Multi-Surface Cleaner, which the brand says removes stubborn spots from coffee, oil, grease and ink, and the leather care products for the cabin.

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