TBPEH Half-Life Data & Temperature Guide | LAAP Technical Notes

Understanding Organic Peroxide Half-Life
The half-life of an organic peroxide is a critical metric that indicates the time required for half of the peroxide molecules to decompose at a given temperature. For polymer manufacturers, understanding half-life data is essential to selecting the right initiator to optimize polymerization efficiency and control heat release.

TBPEH Temperature & Half-Life Profile
TBPEH (tert-Butyl peroxy-2-ethylhexanoate, CAS 3006-82-4) is a widely used medium-temperature initiator. Its half-life temperature profile is as follows:
• 10-hour half-life: 73°C
• 1-hour half-life: 100°C
• 0.1-hour half-life: 113°C

Selecting the Right Formulation
LAAP supplies TBPEH in several grades, including 97% pure form, and diluted solutions (75% and 50% in odorless mineral spirits). For applications requiring safer handling, better dosing accuracy, or lower storage risks, the 75% or 50% solutions are highly recommended.

Applications and Alternatives
TBPEH is predominantly used for curing unsaturated polyester resins and polymerizing styrene and acrylates. For lower-temperature requirements, consider pairing or replacing it with TBPV (10h half-life at 46°C). Always ensure strict adherence to storage temperatures (below 20°C) to maintain stability.

Contact LAAP
Download the full TBPEH Technical Data Sheet (TDS) from our product page or contact our sales engineering team for a formal quotation tailored to your volume requirements.