Cleaning the Rubber Seal of a Washing Machine: What Every UK Home Should Know

If your washing machine smells musty, leaks water, or leaves your clothes less than fresh, the problem often lies in a neglected area: the rubber seal. Regularly cleaning the rubber seal of a washing machine is one of the simplest — yet most overlooked — tasks that can improve performance and extend the life of your appliance.

This blog explains why cleaning the rubber seal of a washing machine matters, how to do it properly, and how to spot when replacement is needed.

Why the Rubber Seal Matters

The rubber seal — also called a rubber door gasket — forms a watertight barrier between the door and drum of front-loading washing machines. Its flexible design allows it to absorb movement during cycles and prevent leaks.

However, it’s also prone to trapping:

  • Moisture
  • Detergent residue
  • Pet hair and fluff
  • Skin cells
  • Bacteria and mould spores

Without regular cleaning, these residues build up and cause:

  • Mould and mildew
  • Unpleasant odours
  • Stained clothing
  • Water leaks

How Often Should You Clean the Seal?

UK homes with moderate to heavy washing machine use should clean the seal:

  • Fortnightly for large households or frequent washing
  • Monthly for lighter use
  • Immediately if signs of mould, smell or leaks appear

What You’ll Need for Cleaning

To clean the rubber seal properly, gather:

  • White vinegar or lemon juice
  • Bicarbonate of soda (baking soda)
  • Spray bottle
  • Cloth or sponge
  • Old toothbrush
  • Rubber gloves (optional)
  • Microfibre towel

These eco-friendly cleaning methods are gentle on both rubber and the environment — perfect for homes avoiding harsh chemicals.

Step-by-Step: Cleaning the Rubber Seal of a Washing Machine

Step 1: Open the Door and Inspect the Seal

  • Pull back the seal gently to examine folds and crevices
  • Look for black mould, white detergent residue or lint buildup
  • Take note of any cracks, tears or deformities

Step 2: Wipe Away Loose Debris

Use a dry cloth or tissue to remove:

  • Hair
  • Dust
  • Soap build-up
  • Fabric fluff

This clears the way for deeper cleaning.

Step 3: Apply the Cleaning Solution

Mix a natural cleaner in a spray bottle:

  • 1 part white vinegar
  • 1 part warm water
  • (Optional: a few drops of lemon juice for freshness)

Spray generously into the folds of the seal. Let it sit for 5–10 minutes to break down mould and residue.

Sprinkle bicarbonate of soda on areas with stubborn mildew.

Step 4: Scrub the Gasket

Use an old toothbrush or soft cloth to scrub the seal gently but firmly.
Pay close attention to:

  • The bottom fold (where water settles)
  • Crevices in the rubber
  • Behind the lip of the seal

Avoid using anything abrasive, as this can damage the rubber.

Step 5: Rinse and Dry Thoroughly

  • Wipe with a clean, damp cloth to remove any cleaner or loosened dirt
  • Dry the seal completely with a towel or microfibre cloth
  • Leave the door open for at least 30 minutes to air-dry remaining moisture

How to Prevent Future Buildup

Once you’ve cleaned the seal, here’s how to keep it that way:

  • Leave the door ajar after every wash
  • Dry the seal with a towel after each cycle
  • Run a hot maintenance cycle monthly with vinegar
  • Avoid overloading the machine
  • Use the correct amount of detergent — excess suds lead to more residue
  • Clean the detergent drawer and filter regularly

These small habits go a long way toward preventing mildew in washing machine seals.

When to Replace the Rubber Seal

Cleaning the rubber seal of a washing machine won’t fix everything. If you spot:

  • Deep cracks or tears
  • Persistent mould that won’t shift
  • Leaking from the door
  • Deformation of the rubber

…it may be time to replace it. Visit our rubber strips page for high-quality materials ideal for custom or replacement washing machine seals.

Choosing the Right Rubber for a Seal Replacement

When replacing a rubber door seal, consider:

  • Silicone rubber for its temperature resistance and flexibility
  • Compatibility with detergent and cleaning agents
  • Long-term durability
  • Resistance to mould and bacterial growth

Our UK-manufactured rubber strips are engineered to meet domestic and industrial appliance needs. Learn more here: https://siliconerubberproducts.co.uk/rubber-strips/

Tired of mouldy washing machine seals? Whether you’re cleaning or replacing, Silco Products provides trusted rubber solutions made in Britain.

Phone: 01903 732088
Email: sales@silcoproducts.co.uk

Explore our full range of rubber strips for appliance seals today.

Cleaning the Rubber Seal of a Washing Machine FAQs

Q1: Can I use bleach for cleaning the rubber seal of a washing machine?
A1: Bleach can be effective but may damage the rubber over time. Vinegar and bicarbonate of soda are safer for regular cleaning.

Q2: Why does my washing machine smell even after cleaning the rubber seal of a washing machine?
A2: The rubber door seal may be harbouring hidden mould or residue. Always clean the seal folds thoroughly.

Q3: If I am properly cleaning the rubber seal of a washing machine, how long would it last?
A3: If you are properly cleaning the rubber seal of a washing machine, a quality rubber seal can last 5–10 years. Regular cleaning extends its life and efficiency.