Playgrounds and indoor play areas are designed to encourage activity, creativity, and social interaction. 

However, playgrounds must be designed with safety in mind. One of the most important elements in reducing the risk of injury is the surface beneath equipment. Properly specified playground or play area matting can significantly reduce the severity of injuries caused by falls.

For specifiers, contractors, schools, councils, and facilities managers, understanding the legal framework surrounding playground surfacing is essential. Failing to comply with relevant legislation and safety standards can increase the risk of injury and expose organisations to legal liability.

This article explains the key legislation and safety standards affecting playground and play area matting in the UK, how a risk-based framework helps organisations remain compliant, and what to consider when selecting and maintaining appropriate surfacing. Lees verder →

Ensuring food-contact O-rings, seals, gaskets, and silicone tubing are safe and compliant is essential for manufacturers, installers, and end-users operating in the United States, European Union, and global food-processing markets.

Regulatory compliance helps:

• Protect consumer health
• Reduce contamination risk
• Ensure export-ready certification
• Support hygienic design standards in processing systems

This guide compares the three most important frameworks for food-contact elastomers and sealing components:

• FDA 21 CFR (U.S.) – focuses on ingredient safety, extractable limits, and migration testing.
• EC 1935/2004 (EU) – prioritises migration limits, traceability, and documentation.
• 3-A Sanitary Standards (3-A SSI) – ensures hygienic design, cleanability, and bacterial prevention in equipment.

Achieving FDA and EC 1935 compliance is essential for manufacturers exporting to the U.S. and EU, while 3-A compliance ensures hygienic design in food and pharmaceutical systems worldwide.

Key Differences Between FDA, EC 1935, and 3-A Sanitary Standards

Key Insight

• FDA focuses on chemical safety and permitted substances
• EU EC 1935/2004 focuses on migration limits and traceability across materials
• 3-A SSI focuses on equipment design, cleanability, and hygienic performance

Together, they define the global compliance landscape for food-contact sealing components.

Steps to Achieve FDA 21 CFR Compliance

FDA compliance for food-contact elastomers and plastics follows a structured process:

1. Verify Approved Materials (Positive List Compliance)

Materials must comply with FDA 21 CFR regulations, especially:

• 21 CFR 177 (polymers used in food-contact applications)
• Only listed additives, stabilisers, and resins may be used
• New substances require a Food Contact Notification (FCN)

2. Extraction & Migration Testing

FDA requires lab testing to measure migration of substances into food simulants. EC 1935/2004 also requires migration testing but uses different simulants and measurement units.

3. Good Manufacturing Practices (GMP)

• Clean, traceable production environments guarantee consistent quality and contamination prevention.
• Essential for manufacturers and reassuring for installers and end-users.

4. Declaration of Compliance (DoC)

• A self-issued document summarising compliance, usually backed by independent lab reports.
• Required for audits, inspections, and export documentation.

Authority cue: A properly prepared DoC demonstrates regulatory compliance to FDA, EC, and 3-A standards, reinforcing credibility with customers and regulators.

Selecting the Right O-Rings, Seals, and Tubing

When specifying components for food-contact applications, consider:

• Regulatory compliance: FDA & EC 1935 for chemical safety; 3-A SSI for hygienic design.
• Material properties: Durometer/hardness, chemical compatibility, temperature resistance.
• Documentation: Lab reports, DoC, audit-ready datasheets.
• Installation suitability: CIP/SIP systems, hygienic operation, maintenance access.

Compliance Comparison at a Glance

• • FDA: Focused on ingredient safety and extractable limits; critical for the U.S. market.
  • EC 1935/2004: Ensures migration limits, traceability, and safe food-contact materials for EU export.
  • 3-A SSI: Ensures hygienic design, cleanability, and bacterial prevention, supporting CIP/SIP systems.
  • Manufacturers exporting to U.S. and EU markets need both FDA and EC 1935 compliance.
  • Proper documentation and independent testing support audits, inspections, and global market access.

Tip: Following these standards ensures high-quality, safe O-rings, gaskets, and tubing for food-contact applications worldwide.

Expert Guidance and Contact

Our team of compliance specialists can help you identify FDA, EC 1935, and 3-A compliant materials, Contact our team of Experts

FFKM (Perfluoroelastomer) O-rings are one of the most reliable sealing solutions available, offering unmatched performance in some of the most demanding environments. Combining extreme temperature tolerance, excellent chemical resistance, and mechanical integrity, FFKM has earned its place in industries ranging from aerospace to chemical processing. 

What is FFKM and Why is It So Effective?

FFKM, or Perfluoroelastomer, is a highly fluorinated version of fluoroelastomer that was first developed in the 1960s. Its unique composition gives it the ability to withstand extreme temperatures ranging from -45°C to +330°C, and makes it resistant to over 1,800 chemicals, including hydrocarbons, oils, fuels, and aggressive solvents. This extraordinary versatility is why FFKM is now used extensively across industries that require the highest standards of sealing performance.

Key Benefits of FFKM O-Rings

1. Exceptional Temperature Resistance FFKM O-rings are designed to perform in both extremely high and low-temperature environments. They can withstand temperatures as low as -45°C (-49°F) and as high as 330°C (635°F). This makes them ideal for industries such as aerospace, automotive, and heavy-duty machinery where temperature extremes are common.
2. Unmatched Chemical Resistance One of the standout features of FFKM is its resistance to a wide range of chemicals. With the ability to resist over 1,800 chemicals, solvents, and plasmas, FFKM O-rings ensure reliable performance even in aggressive environments. This resistance makes FFKM ideal for applications in chemical processing, oil and gas, and semiconductor manufacturing.
3. Superior Permeation Resistance FFKM O-rings are highly resistant to gas and liquid permeation, which can lead to seal degradation and failure. Their ability to prevent permeation helps maintain the integrity of the sealing system, extending the lifespan of the equipment and preventing costly downtime or leaks.
4. Weathering and Ozone Resistance FFKM seals are highly resistant to ozone and weathering, making them perfect for outdoor applications. Whether exposed to fluctuating temperatures, humidity, or UV radiation, FFKM O-rings retain their structural integrity and sealing ability. This resistance is essential in industries like automotive and oil and gas, where outdoor exposure is common.
5. Safety and Non-Flammability FFKM O-rings are typically self-extinguishing and exhibit very low flammability in air due to their fully fluorinated polymer structure. This makes them suitable for applications where fire safety and thermal stability are important considerations.
6. Low Outgassing and Extractables In industries like pharmaceuticals, medical device manufacturing, and semiconductor production, outgassing and particle contamination can cause serious problems. FFKM O-rings feature low outgassing properties, ensuring that they don’t release harmful vapors or particles, which is critical for maintaining cleanliness in high-sterility environments.
7. Outstanding Mechanical Properties FFKM O-rings offer excellent compression set resistance and sealing performance, even under mechanical stress. This makes them ideal for heavy-duty machinery, aerospace, and automotive applications, where maintaining a tight seal under pressure is essential.
8. Suitability for Explosive Decompression FFKM is resistant to explosive decompression, a phenomenon that occurs when a material rapidly decompresses under pressure. This resistance prevents rupture, leaks, and seal failures, making FFKM O-rings highly reliable in high-pressure applications.
9. Customisable Shapes and Sizes FFKM O-rings can be easily customized into a variety of shapes and sizes to meet specific application requirements. Whether you need O-rings, gaskets, or custom seals, FFKM's flexibility ensures a perfect fit for your sealing needs.
10. Ultra-Clean Formulas for High-Sterility Environments For applications requiring the highest levels of cleanliness, such as pharmaceuticals and semiconductor manufacturing, FFKM O-rings are available in ultra-clean formulations. Manufactured in cleanroom environments, these seals are free from contaminants, ensuring the integrity of your processes.
11. We can also supply FFKM with approvals such as:
    • 3-A
    • AED/RGD
    • BfR XXI
    • FDA
    • Low Temperature
    • NORSOK M-710-2
    • NORSOK M-710-3
    • Steam Resistance
    • USP Class VI

Applications of FFKM O-Rings in Different Industries

Given the exceptional benefits of FFKM, it's no surprise that this material is used across a wide range of industries. Here are some of the key applications:

• Chemical Processing: FFKM O-rings are ideal for chemical processing applications, including reaction column seals, chemical fluid handling, and heavy-duty cleaning processes. Their chemical resistance makes them perfect for handling aggressive solvents and chemicals.
• Oil and Gas: In the oil and gas industry, FFKM is commonly used for sealing applications in pump and motor stators, packer elements, and critical sealing parts exposed to hydrocarbons and fuels. Its ability to withstand harsh chemicals and extreme pressure makes it a trusted material for this industry.
• Aerospace: Aerospace applications require materials that can handle extreme temperatures, pressure variations, and environmental stress. FFKM is ideal for use in aircraft engines, seals, and piston rings, where performance reliability is paramount.
• Heavy-Duty Machinery: FFKM O-rings are used in heavy-duty machinery where seals are subject to high mechanical stresses. Industries such as manufacturing, construction, and mining benefit from the durability and performance that FFKM seals provide.
• Automotive: FFKM's resistance to high temperatures, ozone, and a wide range of chemicals makes it a perfect fit for automotive applications. It is widely used in fuel systems, injectors, and high-pressure pumps, ensuring long-lasting, reliable performance in automotive environments.

Why Choose FFKM O-Rings from Polymax?

At Polymax, we specialise in providing top-quality FFKM O-rings and sealing solutions for a wide range of industries. Our FFKM O-rings are manufactured to the highest standards to meet the demanding needs of your applications. Whether you are in aerospace, chemical processing, or automotive, we offer the perfect sealing solution to improve efficiency, reduce downtime, and enhance safety.

We can supply FFKM compounds similar to:

The Polymax team can also work closely with designers and engineers to identify a Polymax compound suited to your specific application. We can support your development process with detailed datasheets, helping you confidently specify the correct material for both current requirements and future designs.

Contact Polymax today to find out how FFKM O-rings can enhance your sealing applications. Let us help you choose the right material and design to meet your specific needs, ensuring performance, reliability, and long-term success. Contact our team on: +44 (0) 1420 474 123 or sales@polymax.co.uk 

Polymax Playground

Polymax have been manufacturing playground flooring for 50 years, understanding that a quality product matters especially when children are involved. The Polymax PLAY tiles have been designed with the safety of children as the number 1 priority.

Polymax playground floors are manufactured using high grade environmentally friendly recycled rubber materials and the premium tiles are designed to be UV resistant, allowing the playground floors to maintain their colour, integrity and finish over a long period of time. The non-premium tiles need to be maintained if they are being placed outside, the Polymax floor care kit is ideal for enhancing the longevity of the tiles.

As we all head deeper into another UK lockdown Polymax have been, and are continuing, to support the local community with their DIY projects. From creating a home gym to rejuvenating your garage, lockdown is the prime time to work on home projects that you usually wouldn’t have the time or opportunity to complete, and Polymax are here to help. Lees verder →

Commercial Gym Flooring

For the last 40 years Polymax have manufactured and supplied commercial gym flooring to leisure centres, gyms and fitness studios across the world. We know exactly what it takes to create a flooring solution that will withstand the toughest workouts time and time again. So before you purchase your matting online here is a short guide to make sure you get the best value for your money.

In the previous part of this series we examined which was the best O-ring material for use in high temperature applications (over 150°C). Today, we will explore what is the best low temperature O-ring according to several working demands. For the most part, many compounds already support a sub degree service temperature ranging from -5 to -25°C, for this reason we will only examine low temperature applications under -25°C.

For working conditions below -25°C, you may wish to consider the following materials; NBR LT, HNBR LT, VMQ, FVMQ, Kalrez® 0040, Polymax P045B7LT, FEP Encapsulated O-rings and Astra seals.

Polymax Apprenticeships

It’s national apprenticeship week! This year’s theme is aimed to help raise awareness about how apprenticeships work. We’re very proud to support the scheme and currently employ two apprentices who are an absolute integral part of our team.

Our regular customers are probably very well acquainted with the two of them. Sydney lee studies Business Administration at Havant & Southdown’s College, she’s worked at Polymax for almost a year now. We also have Lewis Mockford who is 9 months into his Digital Marketing apprenticeship though Portsmouth Highbury College.

To celebrate their success with us we thought we’d give them platform to speak about their experience as an apprentice and what it’s like working at Polymax HQ.