Calcium Stearate

  • Construction Concrete Admixture Other Additives

    Calcium Stearate is a fatty acid salt often used as a concrete admixture additive to improve the properties of concrete. Using Calcium Stearate in concrete admixture additives can lead to many benefits, including improved workability, reduced water absorption, increased strength, cost-effectiveness, and improved finishing.

    Here are some ways in which calcium stearate can assist and change the properties of concrete:

    • Improved workability: Calcium Stearate is a lubricant in the concrete mix, making it easier to work with and allowing for better flow and compaction. This can be particularly useful when the concrete needs to be pumped or placed in hard-to-reach areas.
    • Reduced water absorption: Calcium Stearate can also help reduce the amount of water absorbed by the concrete, leading to better durability and a longer lifespan for the concrete.
    • Increased strength: Calcium Stearate can act as a water-reducing agent in the concrete mix, increasing strength and a lower water-to-cement ratio. This can result in denser, stronger concrete with fewer cracks and better resistance to weathering and other environmental factors.
    • Improved finishing: Calcium Stearate can also help improve the concrete surface’s finishing, resulting in a smoother and more uniform finish.
    • Release agent: Calcium Stearate can produce precast concrete products, such as blocks and pavers, to prevent concrete from sticking to the forms and molds.
    • Curing agent: Calcium Stearate can also be added to the concrete mixture as a curing agent to help reduce water evaporation and maintain the moisture in the concrete in the early stage of hardening.
  • Plastic & Rubber Heat Stabilizers and Lubricants

    Considered an inorganic heat stabilizer, Calcium Stearate – is a white powder used as a stabilizer and lubricant in producing PVC, polyolefins, and other polymers.

    As a stabilizer, Calcium Stearate helps prevent polymers’ breakdown due to heat, light, or other environmental factors. By adding Calcium Stearate to the polymer formulation, the stability and durability of the polymer can be improved, ensuring that it can withstand these conditions without breaking down or degrading.

    As a lubricant, Calcium Stearate helps to improve the processing and handling of polymers during production. It acts as a mold release agent, preventing the polymer from sticking to the mold during shaping and forming. It also reduces friction between the polymer and the processing equipment, making it easier to extrude, inject, or blow mold the polymer into the desired shape.

    In addition to PVC and polyolefins, Calcium Stearate is a stabilizer and lubricant in producing other polymers, such as polystyrene, polypropylene, and polyethylene. It is often added to the polymer formulation in small amounts, typically between 0.1 and 1% by weight, to achieve the desired stabilizing and lubricating effects.