Technical Center
Reference material on rubber compounds, hardness, and bellows engineering — written to help you specify the right part, not to replace a production datasheet.
Materials
EPDM vs. NR Rubber: How to Choose
A practical comparison of EPDM and natural rubber (NR) to help narrow down material choice for bellows and other rubber components.
→MaterialsWhat Is Shore A Hardness?
How Shore A hardness is measured, what the scale means in practice, and how it affects the way a rubber part performs.
→MaterialsWhat Is EPDM Rubber?
An overview of EPDM (ethylene propylene diene monomer) rubber, its properties, and why it is widely used for bellows and outdoor rubber components.
→MaterialsWhat Is Natural Rubber (NR)?
How natural rubber is made, what makes it mechanically excellent, and where its limitations matter for industrial rubber parts.
→Material Reference
General property ranges for the elastomers used across our product range. Production-specific values should always be confirmed on request.
| Material | Temperature range | Shore A hardness | Ozone / UV resistance |
|---|---|---|---|
| EPDM | −40°C to +120°C | 40–90 | Excellent |
| NR (Natural Rubber) | −30°C to +80°C | 30–95 | Poor (unless compounded) |
General reference ranges — not a substitute for a production-verified datasheet.
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