
Material Science & Knowledge Hub
Advanced compounds deliver superior performance
Utilising state-of-the-art facilities, unmatched material knowledge and a scientific approach, Pioneer Weston originates advanced elastomers and high performance engineered thermoplastics that unlock new performance possibilities.
Materials
Pioneer Weston offers a wide range of materials that are optimised to meet a variety of rotary seal applications. However, we can also provide specialist grades of these compounds to meet new industry trends and rotating equipment designs.
Pioneer Weston Elastomer Materials

NBR
N-70-18
Developed specifically for rotary seals, N-70-18 Nitrile grade is formulated to ensure excellent compatibility with mineral and synthetic oils and greases. By reducing friction compared to general purpose Nitrile grades, the Pioneer Weston proprietary grade enhances service life and performance across an operating temperature range between -35°C and 110°C. At dedicated Rubix facilities, the Pioneer Weston technical team develop elastomeric and PTFE seal designs for field trials, supporting the expansion of our core range and the creation of new designs.

FKM
V-75-27
V-75-27 FKM is a black A-type fluorocarbon that features the inherent oil and grease compatibility of NBR, but with increased suitability for higher speed, higher temperature applications. FKM has an operating temperature range of -20°C to 200°C.

HNBR
H-80-40
H-80-40 HNBR offers an improved abrasion resistance and operating temperature range compared to NBR, reliably performing between -40°C and 180°C. HNBR provides a long service life in extreme environmental conditions, which makes the material popular in off-highway applications.


Specialist grades
Pioneer Weston can offer grades of Polyacrylic that can be a competitive choice for Automotive applications, along with silicone materials for specific media compatibility requirements. For niche applications, ultra-low temperature resistant FKM’s and materials suitable for use with bio-fuels are also available. Pioneer Weston are happy to work with our customers on any material challenges they have.
To learn more, please contact us
Facilities
Rubix Technical Centre
At the Rubix Technical Centre and other laboratory facilities, we conduct research into new compounds. This allows us to deliver materials in grades specialised to your application — improving seal performance.
Lab capabilities include:
- Compound mixing including multi-stage
- Vulcanisation of test pieces and prototypes
- Post-curing
- Reverse engineering
Our material testing services include:
- Hardness
- Thermal aging
- Compression
- Chemical and heat aging
- Mechanical properties
- Dimensional performance
- Composition
- Defects
- Wet bench analysis
- Abrasion resistance
- Failure analysis
- Immersion
- UV resistance
- Dynamic mechanical thermal analysis (DMTA)
- Extraction
- Ozone resistance
The Technical Centre is staffed by world-class experts and outfitted with cutting-edge equipment. It hosts capabilities such as Fourier transform infra-red spectroscopy (FTIR), thermo-gravimetric analysis (TGA) and differential scanning calorimetry (DSC).
Guides & Tools
Several factors affect material selection for a dynamic rotary seal. To help narrow your selection, it’s always best to talk to one of our experts.
Contact
General contact
Do you need a rotary sealing solution?
Do you need to get in touch with the team?
Do you have a product question?
Fill in our contact form and we will contact you as soon as possible.
Our locations
Warrington
Daten Park,
Warrington, Cheshire,
WA3 6SX
Barnsley
Oakwell View, McGuiness Works,
Mount Osborne Industrial Park,
Barnsley, S71 1HH
Office hours
Monday to Friday, 8:00am to 5:30pm