Photoinitiator 651 (BDK)

Product Overview

Photoinitiator 651, commonly known as BDK (Benzil Dimethyl Ketal), is a highly efficient free-radical photoinitiator utilized extensively in ultraviolet (UV) curing systems. Chemically identified as 2,2-Dimethoxy-2-phenylacetophenone, this compound serves as a critical component in initiating polymerization reactions upon exposure to UV light. Its robust absorption characteristics make it an ideal choice for manufacturers seeking rapid curing speeds and superior finish quality in various industrial applications.

As a leading manufacturer, we ensure that our Photoinitiator 651 meets stringent quality standards, providing consistent performance across different batches. This product is particularly valued for its ability to function effectively in clear coatings and pigmented systems, offering versatility that few other initiators can match.

Key Performance Features

Our Photoinitiator 651 is engineered to deliver exceptional results in demanding environments. The chemical structure allows for rapid cleavage under UV irradiation, generating free radicals that initiate the cross-linking of monomers and oligomers. This results in fast curing times, which is essential for high-speed production lines.

• High Purity: Content levels exceeding 99 percent ensure minimal interference with final product properties.
• Excellent Transmittance: Superior light transmittance at 425nm and 500nm guarantees deep curing even in thicker films.
• Low Volatility: Minimal volatile matter reduces odor and potential shrinkage during the curing process.
• Thermal Stability: A defined melting point range ensures stable handling and storage under standard conditions.

Industrial Applications

This photoinitiator is widely adopted across multiple sectors due to its compatibility with various resin systems. It is primarily used in the polymerization of acrylates and monomers, as well as the cross-linking of unsaturated polyesters. Common end-use applications include:

• UV Curing Inks: Provides rapid setting for printing on paper, metal, and plastic substrates.
• Protective Coatings: Enhances durability and scratch resistance in varnishes and clear coats.
• Adhesives: Facilitates quick bonding in assembly processes requiring immediate strength.
• Electronic Coatings: Used in conformal coatings where precision and speed are paramount.

The typical dosage ranges from 2 to 5 percent of the total formulation, depending on the specific thickness and pigment load of the system. Technical support is available to help optimize usage rates for your specific application.

Technical Specifications

Storage and Handling

To maintain the integrity and efficacy of Photoinitiator 651, proper storage conditions are essential. The product should be kept in a dry and well-ventilated warehouse, strictly away from direct sunlight and sources of ignition. Moisture protection is critical; therefore, containers must remain sealed when not in use. Although classified as non-dangerous goods for transport, standard industrial safety protocols should be followed during handling to prevent inhalation of dust or skin contact.

We offer flexible packing options, including 25KG cartons and paper drums, to suit various logistical requirements. Each shipment is accompanied by a Certificate of Analysis (COA) to verify compliance with specified parameters. Partner with us for reliable supply chain solutions and competitive bulk pricing on this essential specialty chemical.