Description

Pentaerythritol Tetramethacrylate is a tetrafunctional methacrylate monomer, a key building block for creating highly cross-linked polymer networks. Its value lies in its ability to impart exceptional hardness, chemical resistance, and thermal stability to cured materials. This product is essential for formulators and manufacturers in the coatings, adhesives, and advanced composites industries seeking to enhance the performance of their radiation-curable or thermoset systems.

Application

• UV/EB Curable Coatings & Inks: A critical crosslinker for high-performance wood, plastic, and metal coatings, providing excellent scratch and solvent resistance.
• Dental & Biomedical Composites: Used in restorative dental materials and bone cements to achieve high strength, durability, and biocompatibility.
• Optical Lenses & Adhesives: Imparts high refractive index and low shrinkage in formulations for lenses, optical fibers, and precision adhesives.
• Printing Plates & Photoresists: Serves as a crosslinking agent in photopolymer plates for flexographic printing and in photoresists for electronics.
• Reactive Diluent & Modifier: Acts as a low-viscosity, high-functionality reactive diluent to modify the viscosity and final properties of acrylate oligomers.
• Composite Matrices: Used as a matrix resin in fiber-reinforced plastics (FRP) and other composites requiring high crosslink density.

Basic Information

Product Name	Pentaerythritol Tetramethacrylate
CAS No.	3253-41-6
Molecular Formula	C17H24O8
Molecular Weight	356.37 g/mol
Synonyms	Pentaerythritol Tetraacrylate (common misnomer); PETMA; Pentaerythrityl Tetramethacrylate; Tetramethacrylate Ester of Pentaerythritol; 2-Propenoic acid, 2-methyl-, 1,1'-[2,2-bis[[(2-methyl-1-oxo-2-propen-1-yl)oxy]methyl]-1,3-propanediyl] ester; Pentaerythritol tetrakis(2-methylacrylate); PENTAERYTHRITOL TETRA-METHACRYLATE; SR295
EINECS	221-859-2

Quality Control

Our Pentaerythritol Tetramethacrylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profiling, to ensure consistent performance and reliability for your formulations. A Certificate of Analysis (COA) detailing specific batch results is provided with each shipment.

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, sparks, open flames, and strong oxidizing agents. For long-term storage, consider under an inert atmosphere to prevent premature polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.2%
Color (APHA)	≤ 100
Viscosity @ 25°C	Contact for details
Refractive Index @ 20°C	Contact for details

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