Made from a vulcanized polyolefin thermoplastic elastomer, these balls combine the strength and flexibility of rubber with the simplified processing of thermoplastics. Ideal for applications requiring good elasticity and durability, they are particularly recommended in demanding environments. Marteau- Lemarie, with more than 40 years of expertise, guarantees a quick availability of these logs in local stock in France.
Physical characteristics of the santoprene® ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 0.96 | g/cm3 |
| Young Module | 6 | MPa |
| Thermal expansion coefficient | 91 (T=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 0.2 | W/m·K |
| Electrical resistivity | >10^14 | D·mm2/m |
| Relative magnetic permeability | <~1 | — |
| Magnetic behaviour | Diamagnetic | — |
| Friction coefficient | 0.8 | — |
| Fracture extension | max 620 | % |
| Remanent compression | 25 | % |
Hardness and mechanical resistance of santoprene® ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 60-90 | Shore A |
| Tensile failure load | 6-20 | MPa |
| Tensile failure load | 0,87-2,90 | psix10^3 |
| Exercise temperatures | -40/130 | ° C |
| Exercise temperatures | -40/266 | °F |
Available diameters and grades for santoprene® ball
| Parameter | Value |
|---|---|
| Minimum diameter | 3 mm — 1/8′′ |
| Maximum diameter | 115 mm — 4.1/2′′′ |
| Grades available | III |
Corrosion resistance of santoprene® ball
Good resistance to acidic and basic substances (except strong acids), good resistance to alcohols, ketones, esters, ethers, phenols, glycols, aqueous solutions; do not resist contact with aromatic carbides and petroleum products.
Applications of Santoprene Ball®
Safety valves, membrane pumps, used in automotive sectors, also used as floating elements.
