Perkadox 16 overview

Perkadox 16 is di(4-tert-butylcyclohexyl) peroxydicarbonate (BCHPC, CAS 15520-11-3), a low-temperature peroxydicarbonate initiator from Nouryon supplied as a white powder. Its main use is the suspension and mass polymerization of vinyl chloride between 40 °C and 65 °C, alone or together with Trigonox 99-C75, Trigonox 423 or Laurox to raise reactor output.

In thermoset composites, Perkadox 16 starts the cure of unsaturated polyester and methacrylic resins from about 60 °C. It is usually paired with a less reactive peroxide such as Trigonox C, Trigonox 29-C90 or Trigonox 21S. The pair gives a long pot life at room temperature and a fast, complete cure at 60–140 °C, which suits pultrusion, filament winding, CIPP pipe lining and acrylic solid surface. See all grades in the organic peroxide range.

Perkadox 16 key data

Perkadox 16 TDS & SDS download

The Perkadox 16 product data sheet (TDS/PDS) lists specifications, half-life data and recommended use levels. The safety data sheet (SDS) covers hazard classification, temperature-controlled transport and emergency measures. Both English documents can be downloaded below. Application-specific data sheets for PVC, thermoset composites and acrylics production are available on request.

Applications

- PVC, PVA and PVOH production: initiator for suspension and mass polymerization of vinyl chloride at 40–65 °C, used alone or with a second initiator to shorten batch time.

- Pultrusion and filament winding: fast gelation from 60 °C in unsaturated polyester and methacrylic resins, combined with a high-temperature peroxide for full cure.

- CIPP pipe rehabilitation: low activation temperature with a relatively long pot life at ambient temperature.

-Acrylic solid surface and acrylics production: curing agent for solid surface and suspension polymerization initiator for acrylates and methacrylates.

Storage and handling

Store Perkadox 16 below 20 °C in tightly closed original packaging, in a dry, well-ventilated area away from heat, ignition sources and direct sunlight. Ts max is a storage limit, not a room-temperature rating. Keep it away from reducing agents such as amines, acids, alkalis and heavy metal compounds, and never weigh it out in the storage room. With an SADT of 40 °C, the product is transported under temperature control (control temperature 30 °C).

Perkadox 16 FAQ

Q：What is Perkadox 16?

A: Perkadox 16 is Nouryon's grade of di(4-tert-butylcyclohexyl) peroxydicarbonate (BCHPC), CAS 15520-11-3. It is a white powder initiator used mainly for PVC polymerization and for low-temperature curing of unsaturated polyester and methacrylic resins.

Q：At what temperature does Perkadox 16 work?

A: Its 10-hour half-life temperature is 48 °C and its 1-hour half-life temperature is 64 °C. In PVC production it is used between 40 °C and 65 °C. In thermoset composites it is used from about 60 °C.

Q：Why is Perkadox 16 combined with Trigonox C or Trigonox 21S?

A: Perkadox 16 gives fast gelation at a low temperature, while Trigonox C, Trigonox 29-C90 or Trigonox 21S completes the cure at higher temperature. Together they give a long room-temperature pot life and a fast cure at 60–140 °C, which is common in pultrusion and filament winding.

Q：How should Perkadox 16 be stored?

A: Store it below 20 °C in closed original packaging, away from heat, sunlight, amines, acids, alkalis and heavy metal compounds. Under these conditions it stays within specification for at least 3 months after delivery.

Q：How is Perkadox 16 packed and shipped?

A: The standard pack is a 20 kg cardboard box. Perkadox 16 is classified as organic peroxide type C, solid, temperature controlled (Division 5.2, UN 3114), so it ships under temperature control with a control temperature of 30 °C.

Q：Where can I get the Perkadox 16 TDS and SDS?

A: The English product data sheet and safety data sheet can be downloaded on this page. Send an inquiry for application-specific data sheets or Chinese versions.