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Polymers
Stearates
Formula:
С17Н35СООR
GOST/CAS:
557-04-0 (Mg), 1592-23-0 (Ca), 300-92-5 (Al), 557-05-1 (Zn)
Metallic stearates are compounds of stearic acid with various metals such as Calcium, Zinc, Magnesium, or Aluminum. Renowned for their unique hydrophobic properties, lubricating ability, and stabilizing effects, they serve as essential multifunctional additives in the plastics, coatings, and cosmetics industries.
Applications
PVC & Plastics Processing: Acts as heat stabilizers and internal/external lubricants. They prevent polymer degradation at high temperatures and ensure easy release from molds.
Construction Chemicals: Used as highly effective water repellents (hydrophobic agents) for dry mortars, plasters, and concrete, significantly reducing water absorption.
Coatings & Paints Industry: Functions as flattening (matting) agents and sanding aids. They improve the sandability of wood primers and the texture of finishes.
Pharma & Cosmetics: Utilized as thickening agents for creams and as anti-tacking agents for powders and tablet compression (especially Magnesium Stearate).
Key Advantages
Excellent Dispersibility: Fine particle size ensures uniform distribution within polymer matrices or liquid solutions.
High Thermal Stability: Maintains integrity during high-temperature processing, preventing yellowing and maintaining product clarity.
Superior Hydrophobic Effect: Creates a reliable moisture barrier, extending the lifespan of materials in humid environments.
Effective Lubrication: Reduces friction between machinery and processed materials, increasing production line efficiency.
Storage & Transportation
- Store in a cool, dry, well-ventilated warehouse away from heat sources.
- Avoid contact with strong oxidizers and acids.
- Protect from direct sunlight and moisture.
- Shelf life: 24 months.
Frequently bought together
Technical Specifications
Appearance
Fine white powder
Assay (Purity)
≥ 98%
Melting Point
120 - 150°C (for Ca/Zn Stearates)
Moisture Content
≤ 2,0%
Free Fatty Acids
≤ 1,0%
Supply info
- Paper or polypropylene bags of 20 kg / 25 kg.
- Big bags of 500 kg or 1000 kg (upon prior request).