Reddiplex R4055X uPVC Window & Door Flipper Gasket | Black EPDM Rubber Seal

Reddiplex R4055X uPVC Window & Door Flipper Gasket | Black EPDM Rubber Seal

Looking for a reliable replacement Flipper uPVC window gasket? The Reddiplex R4055X Flipper Gasket is a premium black EPDM rubber seal designed to restore airtight, watertight performance to uPVC windows and doors.

Reddiplex R4055X Black Flipper Gasket delivers superior weather sealing for uPVC windows and doors using premium EPDM rubber construction. This professional-grade flipper gasket is engineered to restore the weatherproofing performance of double glazing units, making it the ideal uPVC window door rubber seal replacement for eliminating draughts and moisture penetration that compromise your home's comfort and energy efficiency.

Manufactured from high-specification EPDM material, this black flipper gasket offers exceptional durability and maintains its sealing properties across all weather conditions. The flipper gasket is specifically designed to go around the opening window or door sash and the frame it closes against, creating a complete weatherproof barrier. The continuous length design ensures seamless installation without joints or weak points, while the push-fit profile requires no adhesives or specialist tools for fitting.

Please Note: This gasket is sold per metre. Order quantity 6 = 6 metres supplied as one continuous length where possible.

Key Benefits:

• Superior Weather Protection – Premium EPDM construction creates an impermeable barrier against wind, rain, and moisture ingress, dramatically improving your home's thermal performance
• Energy Efficiency Enhancement – Eliminates costly heat loss through failing seals, reducing heating bills and improving indoor comfort throughout the year
• Professional-Grade Durability – Outstanding product memory and excellent recovery following compression ensures long-lasting performance that outperforms standard uPVC window gasket alternatives
• Simple Push-Fit Installation – No adhesives required - the gasket simply pushes into the existing groove around your window or door frame for hassle-free DIY seal replacement
• Continuous Length Supply – Sold as one unbroken length to eliminate joints and potential failure points, ensuring superior sealing performance across the entire perimeter
• All-Weather Performance – UV stable and ozone resistant EPDM material maintains flexibility and sealing properties in extreme temperatures, from freezing winters to hot summers
• British Standards Compliance – Meets rigorous BS7412 and BS4255 requirements, ensuring reliable performance and longevity you can trust
• High Tensile Strength – Robust EPDM construction prevents sagging and maintains consistent seal contact pressure over time
• Versatile Compatibility – Perfect for both static and dynamic sealing applications on uPVC windows, doors, and conservatories
• Cost-Effective Solution – Restore original performance at a fraction of the cost of complete window or door replacement with this premium uPVC window door rubber seal replacement

Product Specifications:

• Brand: Reddiplex
• Profile Type: R4055X Flipper Gasket - the most popular design for comprehensive weather sealing
• Material: Premium EPDM rubber for maximum durability and weather resistance
• Colour: Black - maintains professional appearance while resisting UV degradation
• Supply Length: Sold per metre in continuous lengths to minimise joints
• Installation Method: Push-fit design requiring no adhesives or specialist tools
• Suitable For: uPVC windows, doors, and double glazing units with flipper gasket grooves
• Standards Compliance: BS7412 and BS4255 certified for reliable performance
• Temperature Performance: Maintains flexibility and sealing properties across extreme temperature ranges
• Construction: Premium EPDM rubber with excellent flexibility and recovery properties

Please measure carefully before ordering - when fitting, add approximately 6cm to your measured length to allow for proper corner fitting and avoid cutting the gasket too short.

Pro Tips:

Pro Tip: Before installation, clean the gasket groove thoroughly to remove old seal residue and debris. The EPDM material works best when fitted at room temperature, as this ensures optimal flexibility during installation. When measuring, run your tape measure around the complete perimeter and add 6cm - this extra length is crucial for proper corner joints and prevents the frustration of cutting your gasket too short.

Package Contents:

• Your selected quantity in metres of Reddiplex R4055X Black Flipper Gasket (Premium EPDM construction)
• Sold per metre - order quantity 6 = 6 metres supplied
• Supplied as one continuous length where possible to eliminate joints and ensure optimal sealing performance

Frequently Asked Questions:

How do I know if this R4055X profile will fit my windows?
The R4055X is the most commonly used flipper gasket profile for uPVC windows and doors. Check your existing gasket's cross-section shape - it should have a flip-over design that sits in a groove around your window or door frame. If you're unsure about compatibility, we highly recommend ordering our comprehensive Flipper Gasket Sample Pack which includes multiple profiles in EPDM, TPR, and TPE materials, allowing you to test-fit all common flipper gasket types before committing to the full length purchase.

What makes EPDM material superior to standard rubber seals?
EPDM (Ethylene Propylene Diene Monomer) offers exceptional longevity compared to standard rubber. This premium material maintains its flexibility in extreme temperatures, resists UV degradation and ozone damage, and provides outstanding product memory - meaning it returns to its original shape after compression. These properties ensure your uPVC window gasket performs consistently for years, not months, making it the ideal choice for long-term weather sealing solutions.

Can I install this gasket myself, or do I need a professional?
The push-fit design makes this an ideal DIY project requiring no specialist tools or adhesives. Simply remove the old gasket, clean the groove thoroughly, and push the new EPDM seal firmly into place. The continuous length design eliminates complex joints, making installation straightforward even for first-time DIY enthusiasts.

Will this black gasket affect the appearance of my white uPVC frames?
Black gaskets are standard across the industry and provide the best UV resistance for long-term performance. The sleek black finish actually enhances the professional appearance of white uPVC frames and is virtually invisible when the window is closed. The superior longevity of black EPDM far outweighs any aesthetic concerns.

Why Choose Reddiplex R4055X Flipper Gasket?

When draughts and leaks compromise your home's comfort, don't settle for temporary solutions or inferior materials. Reddiplex R4055X Flipper Gasket represents the professional choice for discerning homeowners who understand that quality EPDM construction delivers long-term value. This isn't just about stopping draughts - it's about reclaiming control over your energy bills, enhancing your living comfort, and taking pride in a job done right. With British Standards compliance and proven performance in thousands of installations, you're not just buying a gasket - you're investing in years of reliable weather protection that maintains your home's thermal efficiency and your peace of mind.