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Bleach-free mould and mildew stain cleaner

303 Mold & Mildew Cleaner + Blocker

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£14.99

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Size 473ml

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303 Mold & Mildew Cleaner + Blocker £14.99
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 Mould & Mildew Cleaner + Blocker quickly and safely cleans and removes tough mould and mildew stains from water-safe surfaces.

  • Removes tough mould and mildew stains
  • Helps stop stains returning on treated areas
  • Contains no bleach or harsh chemicals
  • Leaves a fresh scent behind
  • Helps remove unpleasant odours
  • Safe on vinyl, plastic and painted surfaces
  • Can be used on water-safe fabric
  • Suitable for indoor and outdoor use
Read the full description

Full Description

303 Mould & Mildew Cleaner + Blocker quickly and safely cleans and removes tough mould and mildew stains from water-safe surfaces.

This product removes existing mould and mildew stains and also helps prevent mould and mildew stains from re-occurring on the treated surface.

Unlike other mould & mildew cleaner products on the market, this product does NOT contain bleach, and will leave behind a fresh scent.

It works safely on vinyl, plastic, painted surfaces and can be used on fabric.

#30573

More in Odour & Smoke Eliminators.

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

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Key features

  • Mould Stain Remover
  • Bleach Free
  • Fresh Scent
  • Stain Blocker
  • Water-Safe Surfaces

The Drivers HQ

Expert Notes

303 Mould & Mildew Cleaner + Blocker is a bleach-free cleaner for mould and mildew stains on water-safe surfaces, and it also helps stop those stains returning on the treated area. It works on vinyl, plastic and painted surfaces and can be used on fabric, which makes it useful for boat interiors, outdoor cushions, bathrooms and other damp areas. Spray, scrub with a soft brush or microfibre towel, leave it for 1 to 2 minutes, then wipe or rinse off, repeating on heavier stains. It helps remove odours and leaves a fresh scent. Pair it with a soft upholstery brush, clean microfibre towels and, on vinyl, a UV protectant once dry. Always deal with the source of damp as well.

Perfect For / Suitable Surfaces

  • Vinyl
  • Plastics
  • Painted surfaces
  • Water-safe fabrics
  • Boat interiors
  • Outdoor furniture and cushions
  • Bathrooms and damp areas

Caution: Use only on water-safe surfaces and test on a hidden area of fabric first. Do not mix with bleach or other cleaning chemicals.

Technical Specifications

Product Type
Mould And Mildew Cleaner
Brand
303
Size
473ml (16oz)
Maker Code
30573
Action
Cleans Stains And Helps Block Their Return
Free From
Bleach And Harsh Chemicals
Scent
Fresh Scent
Suitable For
Water-Safe Vinyl, Plastic, Painted Surfaces And Fabric
Typical Uses
Boats, Outdoor Furniture, Bathrooms And Other Damp Areas
Dwell Time
1 To 2 Minutes
Application Method
Spray, Scrub With Soft Brush Or Microfibre, Wipe Or Rinse Off
Use
Indoors And Outdoors

How To Use

Application

  1. Shake the bottle well before use.
  2. Spray onto the affected surface.
  3. Scrub with a soft-bristle brush or a microfibre towel.
  4. Leave it to penetrate for 1 to 2 minutes.
  5. Wipe or rinse off with a clean, damp microfibre towel.
  6. Repeat on heavier stains, as reapplication may be needed depending on their severity.

Aftercare

  1. Let the treated area dry fully and keep it ventilated.
  2. Rinse brushes and wash microfibre towels after use.
  3. Check treated areas regularly, especially after damp weather.
  4. Treat new marks early before they set into the surface.
  5. Store the bottle closed and upright, away from heat and frost.

Top Tip: Find and fix the source of damp, such as a leaking seal or poor ventilation, before treating the stains.

Performance Benefits

  • Removes stains on contact
  • Neutralises odours with a fresh scent
  • Cleans vinyl, plastic and painted surfaces
  • Can be used on fabric
  • 1 to 2 minute dwell before wiping
  • Suits indoor and outdoor use

Frequently Asked Questions

Does it contain bleach?

No, 303 Mould & Mildew Cleaner + Blocker does not contain bleach and leaves a fresh scent behind. The UK 303 Car Care site also describes it as free from harsh chemicals.

What surfaces can I use it on?

It is for water-safe surfaces, including vinyl, plastic and painted surfaces, and it can also be used on fabric. Test a hidden area of fabric first.

Does it stop mould coming back?

It helps prevent mould and mildew stains from re-occurring on the treated surface. Dealing with the source of damp and keeping the area ventilated matters too.

How long should I leave it on?

Leave it to penetrate for 1 to 2 minutes after spraying and scrubbing. Then wipe or rinse it off with a clean, damp microfibre towel.

Does it help with odours?

Yes, 303 states it helps remove odours, and it leaves a fresh scent behind.

Can I use it indoors?

Yes, the UK 303 Car Care site describes it as safe to use indoors or outdoors, for example on boat interiors, patio cushions and bathroom surfaces.

What size is it?

303 Mould & Mildew Cleaner + Blocker comes in a 473ml (16oz) bottle, maker code 30573.

HQ Suggests Tips & Insights

  1. Brush off loose dirt and debris before spraying the stain.
  2. Work on cool, shaded surfaces so the product does not dry out.
  3. Use a separate towel for mould work and wash it straight afterwards.
  4. Repeat on stubborn stains rather than scrubbing harder.
  5. Test on a hidden area before treating fabric.
  6. Air out enclosed spaces such as boat cabins after cleaning.
  7. Keep cushions and covers dry before storing them away.
  8. Order online with UK-wide delivery from The Drivers HQ.

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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