Tris(2-butoxyethyl) phosphate

Tris(2-butoxyethyl) phosphate (CAS 78-51-3), commonly identified in industry as TBEP, is an organophosphate ester used as both a plasticizer and flame retardant across a broad range of industrial formulations.

Its dual functionality allows formulators to reduce flammability while maintaining or improving substrate flexibility. This combination drives its specification in demanding end-use applications across various sectors.

In coatings, adhesives, and sealants, TBEP functions as a reactive plasticizer that improves flexibility and film formation. It simultaneously contributes flame retardancy to the cured system for enhanced safety.

Floor polish and wax formulations rely on TBEP to control leveling and gloss. In these applications, it acts as a coalescing agent for polymer emulsions to ensure a smooth and consistent finish.

Textile and leather finishes incorporate it to impart softness and reduce ignition risk in treated fabrics and hides. This makes it a vital component for high-performance materials in the upholstery industry.

In electronics and printed circuit board laminates, TBEP is specified where a non-halogenated flame retardant is required. It meets fire safety standards without compromising the overall processability of the components.

TBEP is supplied as a clear liquid, typically in drum and IBC quantities suited to industrial procurement volumes. It is available in technical grade, which is the standard specification for most applications.

Purity specifications and low-acid-value grades are available for formulators with tighter quality requirements. These options ensure compatibility with sensitive chemical systems and specialized manufacturing needs.