Wheel Materials vs. Chemical Compatibility Guide
Casters and Wheels need to operate in a wide range of environments. Chemical exposure can greatly reduce the lifespan of certain materials so it's essential to pick the right wheel materials as compared to the chemical environments those wheels will be exposed to. Use our guide to see what wheels best fit your application. As always if you have any questions give us a call or contact us.
Wheel Materials vs. Chemical Compatibility Guide
Casters and Wheels need to operate in a wide range of environments. Chemical exposure can greatly reduce the lifespan of certain materials so it's essential to pick the right wheel materials as compared to the chemical environments those wheels will be exposed to. Use our guide to see what wheels best fit your application. As always if you have any questions give us a call or contact us.
Sulfur Dioxide, Dry
SO₂
Sulfur Dioxide (Dry) Caster Compatibility
Chemical Overview
Molecular Formula: SO₂
Physical Properties: Sulfur dioxide (dry) is a colorless gas with a pungent, suffocating odor. It has a boiling point of -10°C, a melting point of -72°C, and a density of 2.6288 g/L at 0°C. It is slightly soluble in water and corrosive in moist conditions. (Source: PubChem)
Industrial Applications
Sulfur dioxide (dry) is used in:
- Food Preservation: As a preservative for dried fruits.
- Chemical Manufacturing: In producing sulfuric acid and sulfites.
- Bleaching: In paper and textile industries.
- Exposure Scenarios: Gaseous exposure in chemical or food processing facilities may contact caster wheels, especially in dry conditions.
Wheel Material Compatibility Summary
Best Suited Materials (A/B Ratings): Polyolefin, Phenolic, and Nylon (A) resist dry SO₂. Ductile Cast Iron and Forged Steel (B) are suitable with minimal corrosion risks.
Materials to Avoid (C/D Ratings): None; dry SO₂ is less corrosive, but prolonged exposure may affect some elastomers.
Wheel Compatibility Table
| Wheel Material | Interaction Description | Rating |
|---|---|---|
| Ductile Cast Iron | Minimal corrosion in dry conditions. | B |
| Elastomer | Resistant to dry SO₂; minimal impact. | A |
| Forged Steel | Minimal corrosion in dry SO₂. | B |
| Neoprene/Nylon Glass Core | Both neoprene and nylon resist dry SO₂. | A |
| Nylon | Excellent resistance to dry SO₂. | A |
| Nylon Glass Filled | Similar to nylon; highly resistant. | A |
| Phenolic | Resistant to dry SO₂; no degradation. | A |
| Polyolefin | Excellent inertness; unaffected. | A |
| Polyurethane on Aluminum Core | Polyurethane and aluminum resist dry SO₂. | A |
| Polyurethane on Iron Core | Polyurethane resists; iron minimally affected. | B |
| Rubber | Resistant to dry SO₂; minimal impact. | A |
| Solid Elastomer | Resistant to dry conditions. | A |
| Thermoplastic Rubber | Resistant to dry SO₂. | A |
| Urethane | Resistant to dry SO₂; minimal impact. | A |
| V-Grooved Iron | Minimal corrosion in dry conditions. | B |
Conclusion
Sulfur dioxide (dry) is compatible with Polyolefin, Phenolic, and Nylon wheels (A ratings). Metals like Ductile Cast Iron and Forged Steel (B ratings) are suitable with minimal degradation. For assistance, contact CasterTech.