Description

N,N'-(Methylenedi-4,1-Phenylene)Bis(Stearamide) is a high-performance, bis-stearamide-based internal and external lubricant and mold release agent. This compound is valued for its excellent thermal stability and compatibility with a wide range of polymers, significantly improving processing efficiency and surface finish. It is primarily used by manufacturers in the plastics, rubber, and coatings industries seeking to enhance flow properties, reduce friction, and prevent sticking during high-temperature molding and extrusion processes.

Application

• As a highly effective internal lubricant and processing aid for engineering plastics like polyamide (PA), polybutylene terephthalate (PBT), and polycarbonate (PC).
• As a mold release agent in injection molding and extrusion processes to improve demolding and reduce cycle times.
• As an external lubricant and anti-blocking agent in PVC, polyolefin films, and masterbatches to prevent adhesion.
• To enhance surface gloss and smoothness in finished plastic and rubber products.
• As a dispersing agent for pigments and fillers in polymer compounds.
• In the formulation of hot-melt adhesives and coatings to modify rheological properties.
• As a slip agent in synthetic fibers and yarns.

Basic Information

Product Name	N,N'-(Methylenedi-4,1-Phenylene)Bis(Stearamide)
CAS No.	16108-98-8
Molecular Formula	C51H94N2O2
Molecular Weight	767.3 g/mol
Synonyms	N,N'-Ethylenebisstearamide (EBS) variant; Bis(stearamido)diphenylmethane; Methylene bis(stearamide); MDBS; N,N'-Methylenebis(stearamide); 1,1'-(Methylenedi-4,1-phenylene)bis[1-octadecanamide]; Lubricant EBS; Bisamide wax; Ethylene Bis Stearamide (common misnomer for this specific isomer)
EINECS	240-278-9

Quality Control

Our N,N'-(Methylenedi-4,1-Phenylene)Bis(Stearamide) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including purity assay, melting point determination, and color measurement. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	140 - 145 °C
Acid Value	≤ 5.0 mg KOH/g
Amine Value	≤ 2.0 mg KOH/g
Moisture (KF)	≤ 0.5 %
Ash Content	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.