Perlast® FFKM – Innovation | Performance | Availability

In today’s evolving process and manufacturing industries, demand continues to grow for high performance sealing materials able to withstand the most challenging operating conditions. Perlast® perfluoroelastomer (FFKM) seals deliver exceptional performance for critical sealing applications where unscheduled downtime is not an option.

Precision Polymer Engineering developed the range of Perlast® sealing materials for reliable long-term sealing performance in environments with temperature extremes and aggressive chemicals, to be robust where other sealing materials would typically fail. It’s why Perlast® has been the brand to trust for some of the biggest names in global food, pharmaceutical and chemical processing, with over 20 years of incident-free sealing.


Why Perlast®?

What makes Perlast® FFKM the ideal choice for sealing in demanding process applications? Let’s take a look at the three key features of Perlast® perfluoroelastomers:

High Temperature Stability:

Perlast® has been engineered to maintain outstanding sealing performance at high and low temperature extremes. Even up to temperatures of 327°C (621°F) – far beyond the capabilities of most other sealing materials – Perlast® is proven to retain sealing force.

Universal Chemical Resistance

Perlast® is one of the most chemically resistant elastomer sealing materials available. Industrial processing environments can involve a wide range of particularly aggressive acids, amines, and solvents. Perlast® has passed the test in all of them. And with full steam resistance, Perlast® is a well suited material for steam-in-place (SIP) and clean-in-place (CIP) sterilisation procedures.

Robust Mechanical Properties

Perlast® performs to a high standard under high pressures and abrasive high speed applications, and compression set isn’t a problem even after prolonged exposure. And with extremely low gas permeability, Perlast® is ideal for use in gas and fluid sealing applications.

How can Perlast® benefit your operations?

Perlast® offers numerous advantages that make it a preferred sealing choice in industrial applications. These include:

Improved Equipment Performance

By specifying Perlast® seals, operators can significantly reduce the likelihood of unscheduled maintenance, repair and overhaul windows. This improves process line uptime, increasing operational productivity and reducing maintenance costs.

Reduced Lifetime Cost of Ownership

As a high performance FFKM, Perlast® is an expensive sealing material to implement in the first instance. But operations enhanced with Perlast® seals experience substantial long-term cost savings through reduced maintenance costs and equipment service life. Fitting Perlast® seals is an investment in the durability and reliability of your process line.

Increased Regulatory Compliance

Perlast® FFKM materials conform to the strictest standards in food and pharmaceutical processing, with full FDA, USP Class VI, BfR and 3A 18-03 compliance, plus EC Regulations 1935/2004 and 2023/2006. It gives peace of mind that your team has a safer working environment, and your end consumers can enjoy a safer product.

The best lead-times

You may be aware that perfluoroelastomer (FFKM) is currently facing a global material shortage, which has caused serious supply chain issues for some manufacturers, delaying shipments and pushing back lead times to unprecedented levels – some upwards of six months.

In the face of an industry-wide supply crisis, Precision Polymer Engineering has managed to maintain good availability of stocked Perlast® FFKM, with parts manufactured to order in approximately 30 days (depending on sizes and quantities).

When process line downtime incurs real financial and reputational cost to your organisation, Perlast® seals can help you keep it to a minimum.

To learn more about Perlast® and how it could benefit your specific application, visit You can also put your questions to our sealing specialists in person at CHEMUK – we’re at Stand M34 at the Birmingham NEC (10-11 May 2023).

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