Irgacure 127

Irgacure 127 (CAS 474510-57-1), also known as Bis(4-(2-hydroxy-2-methylpropionyl)phenyl)methane, is a high-performance alpha-hydroxy ketone photoinitiator designed for UV-curable systems. It generates free radicals upon UV exposure, triggering rapid polymerization and crosslinking in formulated products. Its low volatility and high molecular weight make it a preferred choice for compliance.

In UV-curable coatings for wood, plastic, and metal substrates, this photoinitiator delivers fast surface cure with minimal yellowing. This characteristic supports high-throughput production lines effectively. Adhesive and sealant formulators use it to achieve controlled cure depth and bond strength in structural applications. It is also utilized in pressure-sensitive applications for consistent performance.

In energy-curable printing inks, including offset, flexo, and screen, it supports cure performance across pigmented and clear systems. It is highly valued for its versatility in various ink formulations. It is also specified in photopolymer formulations for electronics and optical applications. This is particularly important where low extractable content is a strict regulatory requirement for the industry.

The product is supplied as a white to off-white crystalline powder. It is available in technical and industrial grades, with purity specifications typically reaching levels at or above 98%. Standard packaging ranges from kilogram quantities for laboratory and development use to bulk quantities for commercial formulation. This ensures flexibility for both small-scale testing and large-scale manufacturing.