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Luperox® organic peroxides FAQ

Answers to common questions about organic peroxides

Is every Luperox® organic peroxide available to me anywhere in the world?

Due to the strict regulations concerning transport, many Luperox® organic peroxides are forbidden for shipment by air freight.   For this reason, we operate manufacturing sites in USA, Mexico, Brazil, Germany, Italy, India, China, Korea, and Japan (JV).  A new plant is also proposed for construction in Saudi Arabia.

Each plant makes products according to the local market needs.  Please contact local representative to discuss availability in your region.

I want a Luperox® methyl ethyl ketone peroxide. What are my options?

Around the world, Luperox® K series organic peroxides are standardized on 10% active oxygen. These are widely available in Europe and Asia.  In the USA and Canada, it is forbidden to transport a methyl ethyl ketone peroxide solution with more than 9% active oxygen.  Therefore, in this region, the Luperox® DDM series is available with a maximum active oxygen of 9%.  Review the products here.

What is Luperox® scorch-protection technology?

Arkema's scorch protected peroxides are designed to simplify the crosslinking of engineered rubber compounds used in injection/compression molding or extrusion.  A proprietary additive acts as a free-radical trap preventing self-accelerating decomposition before the desired mixing temperature is achieved in the process.

Are Luperox® organic peroxides approved for food contact?

This is a complex question.  Some Luperox® organic peroxides have been tested for compliance with various food and health governing bodies throughout the world.  Compliance to the stated regulations is very specific. 

For example: Luperox® 101 polymer initiator has been tested for compliance with the United States Federal Food, Drug, and Cosmetic Act for Food Packaging.  The testing covers use in polypropylene resins and rubber articles only, and according to proscribed use levels by weight. 

If a Luperox® organic peroxide has not been tested or your application does not conform, it will likely be your responsibility to complete the relevant product safety testing.

What if I have technical questions about Luperox® organic peroxides?

Arkema operates organic peroxides research and development centers in:

  • King of Prussia, Pennsylvania USA
  • Changshu, China
  • Pierre-Benite, France

Each location is staffed with experienced scientists and technicians that can consult on safety, process design, applications, and other concerns.

Please contact your Arkema representative to discuss access to these resources.

How can I dispose of Luperox® organic peroxides?

If your Luperox® organic peroxide shelf life has expired, or you don't have any further need to use the peroxide, it must be disposed of in accordance with local regulations.  This often involves having the peroxides incinerated by a licensed waste handler.  For more information, please contact your Arkema representative.

How can I get samples of Luperox® organic peroxides?

Please contact the appropriate regional representative listed on each web page to arrange for samples.

Samples of temperature controlled materials often require a long lead time and special handling due to transportation and safety requirements.

Organic peroxide samples are often not permitted for transport by courier services (overnight shipping).

Do all Luperox® organic peroxides require temperature control?

No, not all Luperox® organic peroxides require storage and transportation under temperature controlled conditions.

Benzoyl peroxides, peroxyketals, hydroperoxides, and ketone peroxides generally do not require transportation or storage by temperature control.

These can be delivered using standard truckload or LTL services.

Please review the safety data sheet for each product to determine the required storage conditions to maintain product safety.

I have questions about storage of Luperox® organic peroxides. Can I get help?

The regulations for storing Luperox® organic peroxides vary greatly by the country and region where you operate.  Typically, the local emergency management or fire safety department of the government will determine the quantity and type of materials they can permit on your site.  Each Luperox® organic peroxide fits into a different hazard category with its own maximum quantity and other storage requirements. 

The Arkema product safety department in your region can assist with specific questions.

You should always consult the product safety data sheet for advice on storage of Luperox® organic peroxides.