15th January 2025 • 11 minute read
Understanding the Importance of Material Selection in Rubber Manufacturing

In the world of rubber manufacturing, material selection is one of the most critical factors in ensuring the performance, durability, and reliability of finished products. At Harltex, we understand that choosing the right rubber compound can make all the difference, whether the application is for automotive, marine, construction, utilities, or rail industries.
Harltex is one of the few UK Rubber Manufacturers that has an in-house Rubber technologist to compound material to your specific needs. This combined with our over 40 years of expertise, Harltex combines technical knowledge and advanced manufacturing capabilities to deliver precision-engineered rubber solutions tailored to diverse industrial applications. In this blog, we’ll explore why material selection matters and how it impacts product success across industries.
Why Material Selection is Crucial
Rubber is an incredibly versatile material, but not all rubbers are created equal. The performance of a rubber product is heavily influenced by the properties of the chosen compound. These properties include:
- Temperature Resistance: Certain rubbers, like VMQ, AEM (Vamac®) and FKM (Viton®), are designed to withstand extreme heat or cold.
- Chemical Resistance: Compounds like NBR or FKM (Viton®) excel in environments exposed to oils, fuels, or harsh chemicals.
- Durability and Flexibility: Applications requiring frequent movement or vibration may benefit from Natural Rubber or Neoprene.
- Environmental Resistance: Products exposed to UV light, saltwater, or ozone demand materials like EPDM or Hypalon (CSM).
Selecting the right material ensures the product meets operational demands, reduces downtime, and enhances safety and efficiency.
Harltex: Experts in Material Selection
At Harltex, we specialise in providing bespoke rubber solutions that perform in the most demanding environments. Our expertise spans a wide range of materials, including:
- EPDM: Ideal for automotive seals, gaskets, and weather-resistant components.
- NBR: Commonly used in oil and fuel-resistant applications, such as hoses and gaskets.
- FKM (Viton®): Known for its superior resistance to chemicals and high temperatures, making it suitable for aerospace, automotive, and industrial applications.
- Silicone (VMQ): Preferred for its flexibility, wide temperature range, and suitability for hygienic environments like food processing and pharmaceuticals.
- AEM (Vamac®): Known for its great temperature range, combined with high Oil resistance and Low Smoke & Toxicity performance.
By working closely with our customers, we ensure the chosen material aligns with their specific application requirements.
Material Selection in Action: Harltex Products and Industries
1. Automotive and Off-Highway
Rubber materials for this sector must handle high temperatures, vibrations, and exposure to oils and fuels. Harltex provides:
- FKM (Viton®) hoses for fuel systems.
- Natural Rubber for vibration dampeners using natural rubber blends.
- EPDM for Coolant and Air In-take hoses
2. Utilities and Renewable Energy
Applications like seals for drinking water or components in renewable energy systems require compliance with stringent safety standards. We offer:
EPDM seals for water systems.
- FKM gaskets for high-temperature energy systems.
3. Marine Industry
Saltwater environments demand materials resistant to corrosion and UV exposure. Harltex supplies:
EPDM seals for marine infrastructure.
- Natural rubber fenders for docks and vessels.
4. Rail Industry
Rail components must endure temperature fluctuations, vibrations, and prolonged use. Harltex provides:
- AEM (Vamac®) – Seals & Compression-moulded gaskets for rolling stock.
- EPDM – Profiles for weather sealing.
The Harltex Approach to Material Selection
When it comes to material selection, Harltex with its in-house expertise follows a rigorous process to ensure the final product meets and exceeds expectations:
Application Analysis
We assess the operational conditions, including temperature, pressure, chemical exposure, and environmental factors.
Material Compatibility
Our technical team evaluates the compatibility of different rubber compounds with the application to ensure longevity and performance.
Prototyping and Testing
Using the latest CAD Technology, we can create prototypes for testing and validation, ensuring the material performs under real-world conditions.
Collaboration with Customers
We work closely with engineers, designers, and procurement teams to ensure the material aligns with both technical and commercial objectives.
The Risks of Poor Material Selection
Choosing the wrong rubber compound can lead to:
- Premature Failure: Components may degrade quickly, leading to costly repairs or replacements.
- Safety Concerns: Inadequate materials can compromise the safety of machinery, vehicles, or infrastructure.
- Increased Downtime: Non-compliance with operating conditions can disrupt operations and lead to productivity losses.
At Harltex, we mitigate these risks by leveraging our expertise to deliver solutions that meet the highest industry standards.
Contact Harltex Today
If you need high-quality rubber components that deliver exceptional performance, Harltex is here to help. Our expert team is ready to assist with material selection and provide bespoke solutions tailored to your needs.
Harltex: Precision in Material Selection, Excellence in Rubber Manufacturing.
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