Precision Polymer Engineering: Stress-free sealing for half a century

We understand that for anyone in the chemical industry, sealing performance is never a secondary consideration. It is fundamental to the integrity, reliability, and safety of your operations.

Chemical process industries demand valve sealing solutions which combine material science expertise with application engineering precision. It’s vital to keeping you ahead of the curve in a highly competitive landscape. And it’s as true today as it was when we started over fifty years ago.

It’s this dedication which has made Precision Polymer Engineering a trusted sealing partner for CPI, pharmaceutical and biomedical companies across the UK and around the world.

Valve sealing for critical chemical applications

In large-scale chemical process environments, the hourly cost of unplanned downtime can run into six figures. Valve fugitive emissions, seal extrusion, and premature elastomer degradation can have real and significant impacts on your bottom line. There’s also the compromise of your environmental compliance. But in any industry, safety has to come first. An optimal valve sealing system must cover all these concerns.

Our specialist engineers offer a one stop shop covering everything from original specification and seal profile design through to testing, integration, and installation. For half a century, this blend of professional expertise and bespoke personal service has made all the difference to our customers.

Material science as a core competency

One core component of the valve seal specification process is material selection – making sure we understand the specific chemical, thermal and mechanical challenges of your valve applications, to identify a material grade robust enough to handle them.

We have built a global reputation for quality and innovation on the depth of our material science understanding. Our capabilities for new material development allow us to continually push back the limits of what elastomer seals can do.

Our Perlast® range of FFKM material grades represents the peak of sealing performance and reliability. Perlast® seals and gaskets have been specified into valves, pumps, mechanical seals, and pipe couplings, where high and low temperature extremes and chemically-aggressive media are a factor. This has driven operational improvements to equipment reliability, extending planned maintenance cycles, improving operating margins, and lowering the overall cost of ownership.

Alongside Perlast® FFKM, Precision Polymer Engineering’s material portfolio includes FKMs, FEPMs and HNBRs. This gives the flexibility valve operators demand, coupled with the peace of mind of full compliance with major international certifications – including USP Class VI, FDA, and ISO 9001 and ISO 45001.

PFAS: Leaders in sustainable sealing innovation

Precision Polymer Engineering has been proactive in its response to the issue around the regulation of per- and polyfluoroalkyl substances (PFAS) in elastomer sealing materials.

Our material science team was ahead of the curve in transitioning to fluorosurfactant-free versions of material grades. These alternative materials follow a more environmentally-sustainable production cycle, putting safety at the forefront without compromising on material performance or reliability. Importantly, it means Precision Polymer Engineering can offer you secure long-term continuity of supply.

Using PFAS surfactants-free materials gives you a competitive advantage to stay ahead in a changing market – and with a stable supply chain, you can future-proof your operations regardless of the direction of future regulation.

Finding the right seal

Identifying the right seal for a critical valve application requires more consideration than an ‘off-the-shelf’ approach. Our specialists work as your elastomer sealing partners, understanding your operations, before combining advanced polymer science, manufacturing precision and application engineering expertise to deliver valve sealing solutions you can trust.

Find us at CHEMUK 2026 (D42) or through our website, and explore how our range of industry-leading materials could boost your operational confidence in your sealing system.

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