R4055X Black Flipper Gasket UPVC Window Door Double Glazing Rubber Seal

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One Continuous Length

R4055X Black Flipper UPVC Window Door Gasket Seal Double Glazing Rubber Repair

Many windows and doors are fitted with a Flipper gasket to weather seal the opening sash against the frame. The R4055X Flipper gasket is one of the most popular seals of this design.

No adhesive is required to fit, the gasket is designed to simply push in to a groove located around a sash or frame. Fitting new gaskets can solve many problems, draughty and leaking windows are one of the many symptoms of a failing gasket. Over the years many gaskets will lose their flexibility, start to shrink and even disintegrate

Available in Black

Please note: When buying multiples of 1m, the gasket will then be sent as one continuous length and not several 1m lengths where possible.

EPDM Features:

  • Most commonly specified gasket material
  • Dynamic and static applications
  • Meets the requirements of BS7412 and BS4255
  • Outstanding product memory
  • Top performing dynamic seals
  • Excellent recovery following compression
  • High tensile strength
  • Available in non-stretch corded versions
  • No migration
  • Non-stretch with high tenacity cord
  • Maintains performance and appearance longer
  • Performance not impeded by low temperatures
  • Ozone resistant
  • UV stable
  • Available in Black only

What's in the pack?

1 x 1 metre of R4055X Replacement Flipper Gasket Rubber

Choosing Your Gasket:

Please check very carefully that you are ordering the correct gasket. If in any doubt please order our Gasket Sample Pack to enable you to select the correct profile. This is available from our shop.


When fitting it is easy to cut the gasket too short - to avoid this measure around the unit and add approximately 6cm to the length required before cutting.

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  • R4055X


    Posted by Catalin on 2nd Mar 2021

    Good seal & easy to fit.

  • Flipper gasket shower door seal


    Posted by Kevin on 7th Sep 2020

    Excellent service. Having acquired the sample pack first, I was able to order the correct seal for my shower doors. Delivery was prompt and very well packaged.

  • R4055X


    Posted by Tony on 30th Aug 2020

    Bought this to replace gasket on 20 year-old windows . Stopped noise and breezes coming through .

  • R4055 window gasket


    Posted by Unknown on 30th Jan 2020

    Bought 46 meters of this product to replace old gaskets. Came in one continuous length so expecting only limited waste. Very easy to fit with no need for special tools. Gasket appears to be very slightly lubricated which really assists fitting. The noise reduction through the gasket is really good, and can no longer hear traffic noise :). Ordering was very straightforward and gasket arrived promptly. Really good product and service

We aim to deliver your products as quickly as possible. Orders taken before 12:00pm will normally be dispatched the same day. Orders taken after 12:00pm on a Friday will be dispatched the following Monday. For all Next Day Delivery Services (next working day excluding Saturday's) please order before 12:00pm for same day dispatch. Depending on the delivery service selected on checkout, we either use a next-day courier service, Royal Mail Tracked 48 or Royal Mail Tracked 24 postage service.

Free Shipping

Free shipping is available for all order over £10.00, delivery time estimates for free delivery is 3-5 working days.

No Quibble Money Back Returns Policy

Shop with absolute confidence knowing that if you are not satisfied for any reason we will refund the full purchase price providing you return the item within 30 days and in the same condition as when dispatched. Except for those cases where an item proves to be faulty, damaged on delivery or incorrectly described, return delivery charges and postage expenses are not refunded.

How do I return Items?

If you need to return an item please log into your account and click on the orders tab. Locate the order you wish to return and on the right click on 'Return Items?' You will then be taken to the returns tab; on the right hand side enter the quantity you wish to return; then on the left below the item, select the return reason and then the return action (whether you would like a replacement or a refund). If a replacement is not available, we will issue you a refund. There is a comments box to the right if you need to enter any more details.

Once you are happy that all the details have been correctly entered then click on the 'Submit Return Request' button. You will then be sent a return request email from JCP Hardware with instructions.

If you have placed an order as a guest and you wish to return it, then please email.

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