Description

Neopentyl Glycol Dimethacrylate is a high-purity, difunctional methacrylate monomer characterized by its two reactive double bonds. This compound is valued for its ability to form highly cross-linked, rigid polymers with excellent resistance to heat, chemicals, and weathering. It is a critical raw material for manufacturers in the coatings, adhesives, and advanced polymer industries seeking to enhance the durability and performance of their final products.

Application

• UV-Curable Coatings & Inks: A key component in formulations for hard, scratch-resistant, and glossy finishes on plastics, metals, and wood.
• Dental & Medical Polymers: Used in the production of high-strength, biocompatible restorative materials, denture bases, and bone cements.
• Adhesives & Sealants: Imparts strong adhesion and chemical resistance in anaerobic and structural acrylic adhesives.
• Fiber Optic Coatings: Provides a protective, durable primary coating with low moisture absorption and excellent signal transmission properties.
• Photoresists & Electronics: Serves as a cross-linking agent in photopolymerizable resins for printed circuit boards and microelectronics.
• Composite Materials: Enhances the mechanical properties and heat distortion temperature of glass or carbon fiber reinforced plastics (FRP).
• Modifier for Acrylic Resins: Used to improve the hardness, solvent resistance, and thermal stability of acrylic sheets and molding compounds.

Basic Information

Product Name	Neopentyl Glycol Dimethacrylate
CAS No.	1985-51-9
Molecular Formula	C12H18O4
Molecular Weight	226.27 g/mol
Synonyms	NPGDMA; 2,2-Dimethyl-1,3-propanediol dimethacrylate; Dimethacrylic acid neopentyl glycol ester; Neopentanediol dimethacrylate; 1,3-Propanediol, 2,2-dimethyl-, dimethacrylate; Bis(methacryloyloxymethyl)propane; NPG-DMA; 2,2-Bis(methacryloyloxymethyl)propane
EINECS	217-883-8

Quality Control

Our Neopentyl Glycol Dimethacrylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile analysis via GC/HPLC, to ensure it meets stringent specifications for high-performance applications. Certificates of Analysis (COA) documenting purity, color, acidity, and inhibitor content are provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., nitrogen) is recommended to preserve monomer integrity and prevent premature polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Color (APHA)	≤ 50
Acidity (as Methacrylic Acid)	≤ 0.1 %
Water Content (KF)	≤ 0.1 %
Inhibitor (MEHQ)	50 - 150 ppm
Refractive Index (n20D)	1.452 - 1.456
Density (20°C)	1.01 - 1.03 g/cm³

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