These phenolic resin beads offer excellent characteristics of dimensional stability, hardness and increased resistance to heat and corrosion. They are ideal for specific environments where performance is crucial. Thanks to our 40-year expertise, Marteau-Lemarie guarantees you a stock available in France for fast delivery.
Physical characteristics of the phenolic resin ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 1.7 | g/cm3 |
| Young Module | 3000 | MPa |
| Thermal expansion coefficient | 95 (T=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 0.25 | W/m·K |
| Volume resistivity | >10^9 | D·m |
| Relative magnetic permeability | <~1 | — |
| Magnetic behaviour | Diamagnetic | — |
| Friction coefficient | 0.25 | — |
| Absorption of moisture (24 h) | 0.35 | % |
Hardness and mechanical resistance of phenolic resin ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 85-90 | Shore D |
| Exercise temperatures | -40/200 | ° C |
| Exercise temperatures | -40/392 | °F |
Available diameters and grades for phenolic resin ball
| Parameter | Value |
|---|---|
| Minimum diameter | 12.7 mm — 1/2′′ |
| Maximum diameter | 100 mm — 4′′ |
| Grades available | III |
Corrosion resistance of phenolic resin ball
Good resistance to contact with low acids and bases, hydrocarbons, petroleum products, alcohols, glycols, mineral oils and fats. Do not resist acids and strong bases, oxidizing agents, phenols, strong alkaline solutions.
Applications of phenolic resin ball
Special pumps and valves, computer industry (mouse), gambling balls ( billiards, bowling, board games).
Density* : For large diameters, lower density balls (about 1.3 g/cm3) and GIV precision grade could be available. Heat-hardening resin balls (density 1,2-1,7 g/cm3): Bills generally used for aesthetic applications, available in different styles and with a polished or matt surface finish.
