Dipentaerythritol pentaacrylate

Dipentaerythritol pentaacrylate (CAS 60506-81-2), commercially available as SR 399 and Miramer M500, is a high-functionality multiacrylate monomer used to achieve rapid UV/EB cure. It is utilized to create dense crosslink networks in radiation-curable systems. Its five reactive acrylate groups deliver high crosslink density, making it a go-to building block for formulations.

This monomer is ideal where cure speed, hardness, and chemical resistance are primary targets. In UV-curable coatings, it builds scratch-resistant, hard surface finishes for wood, plastic, and metal substrates. Printed electronics and conformal coatings rely on it to achieve tight network formation. This protects circuit boards from moisture and chemical exposure during their operational lifespan.

Radiation-curable inks for packaging benefit from its fast cure response on high-speed press lines. This reduces energy consumption while maintaining excellent adhesion to various packaging materials. In adhesive and sealant formulations, it functions as a reactive crosslinker. It improves cohesive strength and solvent resistance in the cured film, ensuring long-term durability in harsh environments.

The product is supplied as a viscous liquid in technical and industrial grades. Specifications are typically aligned to monomer purity, viscosity, and acid value parameters relevant to UV/EB formulation. Inhibited grades containing MEHQ are commonly available to ensure storage stability. This prevents premature polymerization during transport and warehousing, maintaining the integrity of the chemical supply.