Description

Polyamide Resin, Low Molecular Weight 203 is a specialized, low-viscosity polyamide derived from dimerized fatty acids and polyamines. This product matters for formulators seeking excellent adhesion, flexibility, and chemical resistance in high-performance coatings and adhesives. It is specifically needed by manufacturers in the industrial coatings, printing inks, hot-melt adhesive, and construction sealants sectors.

Application

• As a reactive flexibilizer and adhesion promoter in epoxy-based coatings and flooring systems.
• Primary resin component in high-performance, chemically resistant industrial maintenance paints and marine coatings.
• Binder for solvent-based and solvent-free printing inks, offering excellent pigment wetting and gloss.
• Key ingredient in hot-melt adhesives and sealants, providing low-temperature flexibility.
• Modifier for asphalt to improve elasticity, adhesion, and durability in road marking and roofing.
• Corrosion-inhibiting primer for metal substrates in automotive and industrial applications.
• Additive in concrete sealers and coatings to enhance water resistance and durability.

Basic Information

Product Name	Polyamide Resin, Low Molecular Weight 203
CAS No.	72496-94-7
Molecular Formula	Typically (C36H68O4·CnH2n+2N2)x
Molecular Weight	~2,000 - 6,000 g/mol (Average)
Synonyms	Polyamide 203; Versamid 115; Dimer Acid Polyamide; Polyamide Resin Curing Agent; Reactive Polyamide; Thermoplastic Polyamide Resin; Low MW Polyamide Hardener; Fatty Polyamide; Polyamide Adhesive Resin; UNI-REZ 2115
EINECS	Contact for details

Quality Control

Our Polyamide Resin 203 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including amine value, viscosity, and color to ensure consistency and performance. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat sources and open flames. Under these conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Yellowish to amber viscous liquid
Amine Value (mg KOH/g)	200 - 250
Viscosity @ 25°C (mPa·s)	2,000 - 6,000
Color (Gardner)	≤ 12
Non-Volatile Matter (%)	≥ 98.0
Identification (IR)	Conforms

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