Organic Peroxides — Key Facts
Organic peroxides are radical initiators that trigger polymerization and crosslinking in polyolefins, PVC, rubber and thermoset composites.
- Key applications
- Polyethylene (PE), polypropylene (PP), PVC, rubber crosslinking, thermoset composites, acrylics, wire & cable.
- Representative products
- Perodox B, Perodox C, Perodox MEKP, Perodox LUNA, Perodox DCP, Perodox K, Perodox EHP, Perodox 14, Perodox 36, Perodox 99, Perodox 101, Custom Organic Peroxides
- Key brands
- Perodox®, Perodox® LUNA, Perodox® DCP, Perodox® MEKP
- Compliance
- REACH, TSCA, ISO 9001 / 14001 / 45001
Organic Peroxides vs AZO Initiators
Both are radical polymerization initiators, but organic peroxides cover a broad decomposition-temperature range for PVC, polyolefin, and FRP curing, while azo initiators give cleaner, lower-temperature control ideal for acrylics and foam blowing.
| Dimension | Organic Peroxides | AZO Initiators |
|---|---|---|
| What they are | Radical initiators that decompose to release free radicals; the workhorse for PVC, polyolefin, and FRP curing. | Low-temperature azo radical initiators used for vinyl polymerization and chemical blowing (foaming). |
| Decomposition temperature | Broad range (~40-200 C) - a grade for nearly every process window. | Lower-temperature control (~30-120 C) - ideal for heat-sensitive systems. |
| Typical physical form | Liquids, pastes, and solids (e.g., DCP, MEKP, peroxydicarbonates). | Crystalline powders (e.g., AIBN, ABVN, AIBME) and water-soluble grades. |
| Best suited for | PVC, LDPE, thermoset composites (FRP), rubber crosslinking, wire & cable. | Acrylics, emulsion polymerization, ABS, and foam blowing agents. |
| Key advantage | Wide decomposition range and high radical yield for demanding cures. | Cleaner decomposition (no carboxyl by-products) and precise low-temp control. |
| Explore | Organic Peroxides family | AZO Initiators family |
Organic Peroxides
A comprehensive portfolio of high-quality organic peroxides serving as essential initiators, curing agents, and crosslinkers for polymer manufacturing worldwide.
Since our establishment in China, Do Sender Chem has been dedicated to the research, development, and manufacturing of premium organic peroxide products. Our state-of-the-art facility operates under strict quality control standards to ensure consistent product excellence.
Our organic peroxide product line serves as the backbone for numerous industrial applications, enabling the efficient production of thermoset resins, reinforced plastics, elastomers, and advanced composite materials used across automotive, construction, wind energy, and marine sectors.
We pride ourselves on competitive pricing, flexible packaging options, and reliable global logistics, ensuring your supply chain remains uninterrupted regardless of where you operate.
Key Applications
Organic peroxides serve as essential components across diverse industries, enabling polymerization initiation, crosslinking, curing, and specialty chemical synthesis.
Polymerization Initiator
Free-radical initiators for LDPE, PVC, PS, PMMA, and acrylic polymer production with precise half-life temperature control and optimal initiator efficiency.
Curing Agent (UPR/VE)
Room-temperature and elevated-temperature curing systems for unsaturated polyester resins and vinyl ester composites used in marine, construction, and automotive applications.
Crosslinking Agent
High-temperature crosslinking peroxides for PE, EVA, EPDM, and silicone rubber, delivering superior mechanical properties and thermal resistance in wire, cable, and pipe applications.
Modifying Agent
Controlled rheology modification of polypropylene (CR-PP) and polymer degradation control to achieve precise melt flow index and processability targets.
Pharmaceutical Synthesis
High-purity organic peroxides as oxidizing agents and intermediates in API synthesis, epoxidation, and specialty pharmaceutical manufacturing processes.
Oilfield Chemicals
Specialized peroxide-based breakers and initiators for hydraulic fracturing, enhanced oil recovery, and drilling fluid applications in upstream oil and gas operations.
Featured Products
Our core organic peroxide products are manufactured to meet international quality standards, backed by comprehensive technical data sheets and safety documentation.
Perodox B
Alkyl Peroxides
CAS No. 110-05-4
Di-tert-butyl peroxide (DTBP). A high-temperature initiator suitable for PE, PP, and crosslinking applications above 140°C.
Read more →Perodox C
Perester
CAS No. 614-45-9
Tert-butyl peroxybenzoate (TBPB / TBPP). An efficient initiator for LDPE, PS, and ABS production with excellent thermal stability.
Read more →Perodox MEKP
Ketone Peroxides
CAS No. 1338-23-4
Methyl ethyl ketone peroxide solution. The industry-standard room-temperature curing agent for unsaturated polyester resins.
Read more →Perodox LUNA
Diacyl Peroxides
CAS No. 94-36-0
Benzoyl peroxide (BPO). A versatile peroxide widely used in polymer synthesis, pharmaceutical intermediates, and specialty processes.
Read more →Perodox DCP
Alkyl Peroxides
CAS No. 80-43-3
Dicumyl peroxide. A widely-used crosslinking agent for polyethylene, EVA cable compounds, and EPDM rubber vulcanization.
Read more →Perodox K
Hydroperoxides
CAS No. 80-15-9
Cumene hydroperoxide (CHP). Serves as both a polymerization initiator and a key intermediate in phenol/acetone production.
Read more →Perodox EHP
Ester Peroxides
CAS No. 16111-62-9
2-Ethylhexyl peroxydicarbonate (EHP). A low-temperature initiator ideal for PVC suspension and emulsion polymerization processes.
Read more →Perodox 14
Alkyl Peroxides
CAS No. 78-63-7
Lauryl peroxide (LPO). Commonly used as a low-temperature initiator for PVC suspension polymerization and silicone rubber curing.
Read more →Perodox 36
Alkyl Hydroperoxides
CAS No. 75-91-2
Tert-butyl hydroperoxide (TBHP). An essential oxidizing agent used in epoxidation reactions, polymer synthesis, and chemical intermediates.
Read more →Perodox 99
Peroxyketals
CAS No. 3006-86-8
1,1-Di-(tert-butylperoxy)cyclohexane (TBPPH). Designed for high-temperature crosslinking in cable insulation and pipe extrusion.
Read more →Perodox 101
Peroxyketals
CAS No. 25155-25-3
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (DBMPH). Used for high-temperature curing of silicone rubber and EPDM systems.
Read more →Custom Organic Peroxides
Custom Service
Need a specific organic peroxide formulation? We offer custom synthesis services tailored to your unique specifications, purity requirements, and packaging needs.
Inquire now →Our Brand Portfolio
Each brand represents a distinct category of organic peroxide products, tailored to specific industrial requirements and application conditions.
Download Documents
Access technical documentation, safety data sheets, and product brochures for our complete organic peroxide portfolio.
Comprehensive guidelines on the safe handling, storage, transport, and emergency response procedures for all organic peroxide products.
Full catalog covering specifications, packaging, shelf life, and recommended storage conditions for all available organic peroxide grades.
In-depth technical guidance on DTBP usage including optimal dosage ranges, decomposition kinetics, and compatibility matrices.
Quality Assurance
& Safety First
Every batch of organic peroxide produced at our facility undergoes rigorous quality testing before shipment. Our ISO-certified laboratory ensures that purity, active oxygen content, and thermal stability meet or exceed international specifications.
We maintain a fully integrated HSE management system covering hazard identification, risk assessment, process safety management, and continuous improvement programs. Our team provides technical support and safety training to help customers handle organic peroxides responsibly.
Learn about our Quality System
Contact Our Experts
For more information about organic peroxide solutions, please contact our experts. We look forward to hearing from you.
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