DESCRIPTION: BENOX? B-50 and B-55 are fine dispersions of dibenzoyl peroxide in a smooth, non-separating, refractory, creamy paste form. Their patented (U.S. Patent No. 5,334,326) benzoate plasticizer diluent system provides product formulations that dissolve easily in resins and monomers. These products are less hazardous and easier to use than the dry granular form of dibenzoyl peroxide, provided the plasticizer and moisture content are not objectionable. Other benefits of benzoate plasticizer systems include better dispersion for heat degradation resistance and elimination of phthalate plasticizers.

Product Variant:

• BENOX? B-50-106: Creamy, white, non-separating, containing 50% dibenzoyl peroxide, mainly used for automotive body filling.
• BENOX? B-50-210: Blue variant of 50% dibenzoyl peroxide, creamy, non-separating, for automotive body filling.
• BENOX? B-50-230: Light blue variant of 50% dibenzoyl peroxide, creamy, non-separating, used for automotive body filling for customers who prefer a light blue paste.
• BENOX? B-50-513: Red colored 50% dibenzoyl peroxide paste, one of the most popular non-separating paste formulations in the B-50 series.
• BENOX? B-50-713: 50% dibenzoyl peroxide paste with a halo appearance, non-separating, for automotive body filling.
• BENOX? B-55-107: A basic white paste of 55% dibenzoyl peroxide, primarily used in the mining bolting industry and other industries where further dilution is required prior to use.
• BENOX? B-55-108: A white paste of 55% dibenzoyl peroxide formulated for ambient and elevated temperature curing of unsaturated polyester resins. Compared to Formulation 107, B-55-108 has a lower moisture content, is creamy and does not separate.

Technical data:

• Dibenzoyl Peroxide content: B-50 (50%), B-55 (55%)
• Active oxygen content: B-50 (3.3%), B-55 (3.6%)
• Form: Cream Paste
• Color: white
• Solubility: soluble in oxidizing and aromatic hydrocarbon solvents, slightly soluble in alcohols and petroleum solvents, insoluble in chlorinated solvents

Applications: BENOX? B-50 & B-55 are primarily used as polymerization initiators and curing agents for monomer ethylene, propylene, styrene and unsaturated polyester/vinyl ester resins, as well as copolymers of these resins, provided that plasticizers and moisture content can be tolerated. This product offers the following advantages over dry granular products:

1. Significantly reduce the hazards involved in handling and storage.
2. The very fine particles of dibenzoyl peroxide are uniformly dispersed in the plasticizer and dissolve more readily in the resin, eliminating the dangerous practice of dissolving dry dibenzoyl peroxide in styrene, acetone or other volatile solvents.

In addition, the following areas of application were mentioned:

• Normal temperature molding
• Automobile body filling
• High Temperature Molding
• bonding agent

This document also provides information on packaging, transportation and availability.

Disclaimer:

• This information and our technical recommendations for applications (whether verbal, written or experimental) reflect our existing knowledge based on in-house testing using local raw materials. They are intended to provide interested parties with information about our products and their possible applications. They should not be interpreted as a guarantee of specific product performance or of their suitability for a particular application, nor do they contain complete instructions for use. Furthermore, this information does not constitute a guarantee of quality or durability. Changes in technological advances and corporate developments will be reserved. Consideration should be given to any existing third-party copyrights. The use and utilization of our products based on our application-specific recommendations is beyond our control and is the sole responsibility of the user. The user is not relieved of the obligation to verify its suitability and fitness for its intended purpose.