About Stepan Company

Stepan Company, established in 1932, is a pioneering force in the chemical industry with a longstanding commitment to innovation and sustainability. Headquartered in Northfield, Illinois, Stepan Company specializes in the manufacturing of a diverse range of chemical products, including surfactants, polymers, and specialty products, serving multiple industries globally. Stepan Company develops high-quality additives designed to enhance the performance, durability, stability, and functionality of polymer-based products. Integrating these additives enhances results in plastics manufacturing, coatings, and adhesives by improving process efficiency and ensuring products meet required performance standards.

ZELEC® UN

ZELEC® UN by Stepan Company is un-neutralized alcohol phosphate-based release agent in polyester resin molding operations that requires external heat, such as matched metal die, compression and pultrusion.<br> <ul style="padding-left: 40px;"><li>Protects ferrous metal molds from corrosion during storage.</li> <li> Offers reduced danger of loss or damage to expensive molds or parts due to improper application of external parting agents.</li> <li>It improves surface appearance of molded parts and produces exceptionally smooth surfaces on molded products made from low shrink, unsaturated, thermosetting polyester resins.</li> <li>ZELEC® UN offers improved surface appearance of molded parts.</li> <li>Suitable for pultrusion molding of fiberglass reinforced polyester resins.</li> <li>Recommended dosage level is 0.25-0.75 parts per 100.</li></ul>

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MERPOL® A

MERPOL® A by Stepan Company is an alcohol phosphate providing low foam, wetting and emulsification. It acts as an anti-static agent and pigment dispersant. It is used as a lubricating agent for rubber part assembly. MERPOL® A is suitable for use in plastic applications.

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TERATE® HT 5502

TERATE® HT 5502 by Stepan Company is an aromatic polyester polyol for hydrocarbon blown PIR laminate systems requiring higher acid number. It exhibits improves flammability and physical performance. It delivers burn performance in industry testing, forming char with minimum shrinkage and high weight retention. It improves ease of processing during rigid foam production and adhesion to various substrates. It helps to reduce flame retardant loading and smoke development in polyurethane and polyisocyanurate rigid foam formulations. TERATE® HT 5502 can be used as a partial replacement of traditional polyether polyols with minor formulation adjustments.

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