Used in production of various esters, fatty alcohols, fatty acid isethionates, metallic soaps, fatty acid sarcosinates, imidazolines, fatty amines, oxazolines for paint binder, surfactants in personal care products, liquid and transparent soaps, corrosion/rust inhibitor for antifreeze; Used in agricultural chemicals, food, adhesive, crayon, candles, cements, coatings, inks, leather waxes, lubricants, metal workings, mining, pencils, capsules and ointments, plastics, rubber, textiles etc.

Rubber Grade Stearic Acid is a specific formulation of stearic acid tailored for use in the rubber industry. It is derived from both palm oil and palm kernel oil, produced through the splitting of fats at high temperature and pressure. This grade is known for its high acid value, typically not less than 195 mg KOH/g, and a minimum saponification value of 196 mg KOH/g. It has a low iodine value, with a maximum of 4% I2 absorbed, indicating a low level of unsaturation.

Rubber Grade Stearic Acid is characterized by its solid form, which can be in the form of flakes or beads, and is packaged in 25kg bags, drums, or in bulk。 It plays a crucial role in rubber processing, acting as a sulfur-activated agent, and is also used as a plasticizer and softening agent. It facilitates the dispersion of carbon black, white carbon black, and zinc oxide, and reacts with zinc oxide or alkaline accelerators to enhance their activity, acting as a primary accelerator in the vulcanization process.

This grade of stearic acid is also known for its ability to reduce the viscosity of rubber compounds, thereby improving the processability and plasticity of the rubber. It is typically added in small proportions, about 0.5-3 parts per hundred parts of rubber, yet it is indispensable for the rubber compound. The acid value, iodine value, and saponification value are critical quality indicators for rubber grade stearic acid, ensuring its performance in the rubber industry.