What is the eagaSEAL® flexible PVC compound range?
eagaSEAL® is Eagley Plastics’ branded range of flexible PVC compounds, manufactured for use in the extrusion of window profile gaskets. Unlike general-purpose flexible PVC compounds, every grade within the eagaSEAL® range has been specifically formulated to meet the demanding mechanical and durability requirements that gasket service imposes.
The range sits alongside eagaFLEX®, our broader flexible PVC compound range for extrusion and injection moulding, and eagaVIN®, our rigid PVC compound range. Where eagaFLEX® covers the full spectrum of flexible PVC applications, eagaSEAL® is a focused, technically specified offering for customers who need compounds proven in gasket and sealing service.
All eagaSEAL® compounds are formulated and manufactured in-house at Eagley Plastics’ facility in the High Peak, Derbyshire, giving full control over formulation, quality and lead times.
Static gasket compounds: weather sealing for glazing units
Static gaskets perform a critical role in modern window systems, providing the weather seal between a glazing unit and the surrounding profile. Once fitted, a static gasket remains under sustained compression for the life of the window, and its performance depends on maintaining an effective seal over that extended period.
The eagaSEAL® static gasket compounds are formulated to achieve low compression set values, meaning the material retains its sealing force even after long-term compression. Hardness is available across a range of BS softness values to suit the profile geometry and the compression level required in the installed position. Specific gravity can also be targeted to meet weight or processing requirements.
Dynamic gasket compounds: performance through repeated open and close cycles
Dynamic gaskets are subject to a fundamentally different loading regime to static gaskets. Applied to doors and opening windows, a dynamic gasket is compressed and released with every cycle of use. Over the service life of a window or door, this can represent tens of thousands of compression and recovery events.
The eagaSEAL® dynamic gasket compounds are formulated with dynamic recovery as the primary performance criterion, ensuring the material rebounds effectively after each compression cycle and continues to provide a reliable weather seal throughout the life of the product. This requires careful balancing of plasticiser selection, polymer grade and specialty additives to maintain consistent physical properties over time and across varying temperature conditions.
Compound customisation within the eagaSEAL® range
All eagaSEAL® compounds can be tailored to specific performance requirements. The range is available across a full spectrum of BS softness values and SG targets, and each grade can be enhanced with additive packages to meet particular application demands.
Formulation options within the eagaSEAL® range include:
For customers working to a profile manufacturer’s material specification, or needing to meet a specific BS or EN standard for gasket performance, the eagaSEAL® range provides the technical foundation for that conversation.
Every eagaSEAL® compound is formulated and manufactured in-house, which means we control the process from raw material intake through to dispatch. The range has been built through years of in-house R&D, compounding expertise and close collaboration with customers in the window and door fabrication sector. It sits alongside eagaVIN®, our registered rigid PVC compound range, eagaFLEX®, our registered flexible PVC compound range for extrusion and injection moulding, and eagaFREEZE®, our registered purge and freezing compound range.
If you are sourcing flexible PVC compounds for static or dynamic window gasket applications, Eagley Plastics can discuss your technical requirements directly. Custom softness targets, SG, additive packages and colour are all available within the eagaSEAL® range. Just ASK.
