Zinc Oxide (ZnO) is an inorganic compound widely used as an activator and processing aid in rubber and polymer formulations. Manufactured via the French process, it is characterized by high purity, fine particle size, and consistent surface area, making it suitable for vulcanization systems. In rubber compounding, Zinc Oxide functions in combination with stearic acid to activate accelerators, thereby facilitating efficient crosslinking.
It is extensively used in natural rubber, SBR, NBR, EPDM, and other elastomer systems where controlled curing and process stability are required. Additionally, it plays a role in improving dispersion of compounding ingredients and maintaining uniformity during mixing.
Zinc Oxide is also used in coatings, ceramics, adhesives, and chemical processing industries due to its chemical stability and compatibility with various formulations. Its consistent quality and controlled impurity levels make it suitable for industrial applications requiring reproducibility and process control.
| Parameter | Specification |
| Appearance | Off White to Yellowish Powder |
| Chemical Type | Inorganic Compound (Zinc Oxide) |
| Manufacturing Process | French Process |
| Molecular Formula | ZnO |
| Molecular Weight | 81.38 |
| Purity (ZnO, % by mass) | 99.6+ |
| Moisture Content (% by mass) | 0.11 |
| Acidity as H₂SO₄ (% by mass) | NIL |
| Water Soluble Matter (% by mass) | 0.10 |
| Wet Sieve Residue (325 mesh, %) | 0.11 |
| Specific Gravity | 5.52 |
| Surface Area (m²/g) | 5.2 |
| Lead Content (% as PbO) | 0.01 |
| Sulphur Content | NIL |
| Copper Content | NIL |
| Manganese Content | NIL |
| Cadmium Content | NIL |
| Solubility in HCl | Complete |
| Shelf Life | 24 Months |
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 rubber compounds: 3–5 phr (parts per hundred rubber), depending on formulation and curing system.
Recommended dosage may vary based on formulation and processing conditions. Users should verify dosage before commercial use.
We deliver pan-India and have tie-ups with all major couriers & transporters.
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 industrial chemicals, including Zinc Oxide for rubber and polymer applications. The product is supplied in standard 25 kg packs as well as small pack sizes (1 kg / 5 kg) to support trials and R&D activities.
Zinc Oxide is commonly used by manufacturers in cities such as Delhi, Faridabad, Gurugram, Ludhiana, Ahmedabad, Mumbai, and Chennai for rubber compounding and industrial production. Supply is managed through established logistics networks to ensure consistent availability.
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