Sodium Stearate is a fatty acid salt used in Acrylic Rubber (ACM) compounding as a soap-based activator within cure systems. It plays a functional role in facilitating cure reactions by supporting the interaction between curatives and the polymer matrix. In ACM formulations, Sodium Stearate is typically used alongside other metallic stearates, such as potassium stearate, to achieve controlled and uniform curing behavior.
It contributes to improved dispersion of compounding ingredients and helps maintain stable rheological characteristics during processing. Its presence in the formulation assists in achieving consistent cure profiles under standard vulcanization conditions.
Sodium Stearate is widely incorporated in ACM rubber formulations for automotive and industrial applications where controlled crosslinking and processing consistency are required. It is supplied in solid form and is compatible with conventional rubber mixing processes.
| Parameter | Specification |
| Appearance | White to Light Yellow Needle |
| Chemical Type | Fatty Acid Salt |
| CAS No. | 822-16-2 |
| Free Alkali | 0.10 Max |
| Alcohol Insoluble Matter | 2.50 Max |
| Water Insoluble Matter | 0.80 Max |
| Water Content | 10 ± 2% |
| Iron Content | 50 ppm Max |
| Petroleum Ether Soluble Matter | 1.50 Max |
Disclaimer:
The above specifications are provided for reference purposes only. For precise and up-to-date technical details, please contact our marketing team.
Typical usage in ACM rubber formulations: ~3 phr (parts per hundred rubber) based on standard cure system formulations.
Disclaimer:
Recommended dosage may vary based on formulation and processing conditions. Users should verify dosage before commercial use.
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Disclaimer:
We are independent dealers and are not associated with the manufacturer. The information provided is compiled from official manufacturer datasheets and independent research. Users must evaluate product suitability and applicability before use.
Lab Line Enterprises is an ISO 9001:2015 certified supplier of rubber chemicals, offering Sodium Stearate for ACM rubber applications. The material is supplied to manufacturers across key industrial regions including Delhi NCR, Mumbai, Ahmedabad, Chennai, and Pune. Small pack sizes (1 kg and 5 kg) are available to support trials, formulation development, and R&D requirements. The product is sourced from multiple manufacturers and supplied with standard documentation for industrial use.
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