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HS Code |
397639 |
| Chemical Name | Tert-Butyl Cumyl Peroxide |
| Content Percentage | ≤ 52% |
| Inert Solid Content | ≥ 48% |
| Cas Number | 77-73-6 |
| Molecular Formula | C17H26O2 |
| Molecular Weight | 262.39 g/mol |
| Appearance | White or off-white solid |
| Odor | Faint aromatic odor |
| Melting Point | 52-54°C |
| Solubility | Insoluble in water |
| Density | 1.05 g/cm³ |
| Storage Temperature | Store below 30°C, away from heat sources |
| Decomposition Temperature | Above 80°C (exothermic) |
| Main Use | Polymerization initiator |
| Hazard Class | Organic peroxide, type E |
As an accredited Tert-Butyl Cumyl Peroxide [Content ≤ 52%, Inert Solid Content ≥ 48%] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packaged in 25 kg fiber drums with inner polyethylene bags; labeled for Tert-Butyl Cumyl Peroxide, hazard warnings, and composition details. |
| Shipping | Tert-Butyl Cumyl Peroxide (Content ≤ 52%, Inert Solid ≥ 48%) should be shipped in tightly sealed, labeled containers, protected from heat, sparks, and direct sunlight. Transport as a regulated hazardous material (oxidizer, organic peroxide) according to local and international regulations. Handle with care to prevent shock, friction, or contamination. |
| Storage | Tert-Butyl Cumyl Peroxide [Content ≤ 52%, Inert Solid Content ≥ 48%] should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from heat, sparks, and open flames. Avoid direct sunlight and incompatible materials such as reducing agents and acids. Keep away from sources of contamination and handle with care to prevent decomposition or hazardous reactions. |
Applications of Tert-Butyl Cumyl Peroxide [Content ≤ 52%, Inert Solid Content ≥ 48%] in Industrial ManufacturingTert-Butyl Cumyl Peroxide, with its regulated active content and inert carrier composition, performs as a reliable initiator and crosslinking agent in multiple polymer and elastomer manufacturing chains. Below, we detail its real-world integration in key downstream sectors, with a focus on regulatory, formulation, and processing specifics relevant to purchasing and technical decision-makers in industry. 1. Crosslinking Agent in Polyethylene Wire & Cable InsulationElectric wire and cable producers utilize this peroxide for crosslinking low-density and linear low-density polyethylene (LDPE, LLDPE), delivering insulation with stable dielectric and mechanical properties. The material enters extrusion lines where strict temperature and compounding windows are observed to optimize crosslink density and minimize scorch. Manufacturers align their process controls according to electrical safety and product lifetime expectations, based on utility and automotive sector standards. Industry compliance standards
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2. Initiator in Polymerization of PolystyreneManufacturers of general purpose and high-impact polystyrene employ this organic peroxide as a free radical initiator in bulk and suspension polymerization processes. It delivers a consistent polymerization rate at selected temperatures, directly influencing molecular weight and final product clarity. Formulators opt for Tert-Butyl Cumyl Peroxide in processes which require a predictable decomposition profile and minimized discoloration. Industry compliance standards
Typical usage ratio
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3. Vulcanizing Agent in Ethylene-Propylene-Diene Rubber (EPDM) ManufacturingEPDM rubber compounders depend on this organic peroxide for peroxide-cured (non-sulfur) vulcanization methods, achieving superior heat aging, compression set, and low-temperature flexibility for sealing and gasket products. Compounders favor this grade for its stabilized decomposition and low volatility during high-shear mixing, ensuring batch-to-batch quality uniformity and consistent cure kinetics. Industry compliance standards
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4. Crosslinking Agent in Thermoplastic Elastomer (TPV, TPO) ProductionProducers of thermoplastic vulcanizates (TPV) and thermoplastic polyolefins (TPO) select this peroxide for dynamic crosslinking processes. The material enables in-situ formation of elastomeric networks within a thermoplastic matrix, crucial for applications demanding precision in compression set and elastic recovery. Tight control on decomposition temperature and resin compatibility underpins process reproducibility in compounding lines. Industry compliance standards
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5. Curing Agent in Unsaturated Polyester Resin (UPR) Composite MoldingManufacturers of fiber-reinforced plastic (FRP) panels and technical profiles depend on this peroxide grade as an activator in UPR curing, especially where moderate release exotherms and improved surface finish are required for thick-section components. Careful balance of dosage optimizes the B-stage tack and final hardness for composites meeting transport and construction quality benchmarks. Industry compliance standards
Typical usage ratio
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Competitive Tert-Butyl Cumyl Peroxide [Content ≤ 52%, Inert Solid Content ≥ 48%] prices that fit your budget—flexible terms and customized quotes for every order.
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We manufacture Tert-Butyl Cumyl Peroxide with a keen focus on practicality and reliability because we know what’s expected downstream—our own teams rely on it too. This peroxide, offered as a granular mixture where the active content runs up to 52% and inert solid content sits at a minimum of 48%, delivers the balanced performance needed for both efficiency and safe material handling. Many of the users in the polymer and elastomer sectors tell us they aim for repeatable results, not just theoretical potential. They need predictability through every step. Sizing and formulation inside our facility account for the habits of rubber compounders, plastics processors, and anyone else making use of organic peroxides—raw, clear information, not just regulatory compliance.
We have layered years of in-plant experience and customer feedback into this mixture. In the early days, more concentrated forms led to agglomeration, dusting, and unexpected hot spots during batch-making. Physical blending with the inert solid puts a stop to those issues right at the source. Even the shape of the granules matters; it’s not just about stabilizing, but also about movement through hoppers or blenders. The less time spent fixing jams, scraping hardened peroxides out of a bin, or troubleshooting uneven dispersion, the more value we all keep in the workflow.
The latest offering in our line of Tert-Butyl Cumyl Peroxide builds on familiar chemistry but incorporates updates driven by measurable need. We learned that pure, high-strength forms deliver fast cross-linking for some industrial composites, but carry risks many production lines find unacceptable. Too reactive, too sensitive to ambient conditions, those forms became more trouble than they were worth outside of tightly-controlled laboratory setups. That pushed us to develop this 52% content blend. By docking down the actives and pairing them with reliable inert carriers, we give customers a formulation they can handle in standard plant warehousing and process setups without treating it like a hazardous material every minute.
From a molecular perspective, the difference sits in both the kinetics of decomposition and ease of mixing. Pure Tert-Butyl Cumyl Peroxide can break down energetically and unpredictably when exposed to friction, shocks, or even the static from a conveyor belt. With our blend, that energetic potential calms down, giving users a predictable and measured release aligned to real-world curing cycles. This approach matters most in large rubber compounds, cross-linked polyethylene cables, and specialty plastics that face harsh mechanical and environmental demands. Lower risk of premature curing can mean millions in avoided reprocessing or scrap for a large volume operator. It is these stakes that shape every step of our quality program.
Many customers ask about the nuts and bolts—how Tert-Butyl Cumyl Peroxide with 48% or greater inert solid really behaves alongside other peroxides or curing agents already on the market. Our experience shapes the answer. Blends with high inert content mean these granules resist caking and clumping, even after weeks in standard packaging. Bags open easily, product pours cleanly, and operators can meter doses without the panic sometimes associated with pure forms. In the event you need to store this blend outside of the ideal temperature range, the material handles short-term exposures without runaway degradation or gas formation. We saw big differences compared to single-phase peroxides, which frequently demonstrate unpredictable exotherms and can spark safety incidents if staff loses focus for even a shift.
At the production end, we’ve watched operators take this material into masterbatch formulations and continuous processes. Matching that hands-on reality, we rate every batch on flow characteristics, particle size distribution, and content uniformity—not just the theoretical peroxide recovery. These tests grew from years spent inside facilities where downtime and rejects are measured in real money, not academic percentages. A product that flows evenly through a feeder, that won’t block pneumatic lines or settle out of a slurry, keeps both us and our customer’s teams out of scramble mode. This is what ultimately forms our loyalty to this model.
In the world of organic peroxides, Tert-Butyl Cumyl Peroxide isn’t rare, but different grades offer very different working lives. Some, especially liquids, require agitation systems, frequent pH monitoring, and create vapor hazards in warm environments. Others come as ultra-high content powders, demanding cold-chain distribution and triple-checks at every stage. Our product splits the difference by being stable, easy to transport, and with the solid phase acting as a safety shield and dosing aid. The less work needed to keep a peroxide safe in daily handling, the more likely it will get used correctly every time. We’ve seen this firsthand—facilities with minimal incidents, lower PPE requirements, and fewer employee concerns adopt this grade faster. Our trial data shows scrap rates dropped across multiple factories after switching to this product, simply because handling mistakes became rare.
Compared to typical dialkyl peroxides or dicumyl peroxide, Tert-Butyl Cumyl Peroxide brings some real differentiators. From a chemistry standpoint, it produces a unique mix of tertiary and cumyloxy radicals on decomposition, lending itself to both fast and extended cure cycles depending on operating temperature. That dual behavior allows users to dial in mechanical properties or heat distortion resistance in finished goods—rubber hose manufacturers, cable sheath producers, and even specialty foam plants have reported better batch-to-batch consistency using this model. With dialkyl peroxides, the balance tips toward rapid, all-at-once reactivity—useful in some niches, but much less forgiving to line slowdowns, temperature dips, or inconsistent mixing.
Another advantage— the granular product pairs naturally with standard fillers, pigments, and reinforcing agents without triggering unwanted reactions. The inert phase doesn’t get in the way of formulation, meaning the peroxide behaves predictably alongside calcium carbonate, carbon black, or common process oils. Our in-house development teams found no measurable interference with standard additives, based on batch records and QA checks. This means users can adapt recipes without running a fresh round of compatibility tests each time.
We have managed this product in both small-batch and high-volume operations. Safety stands as the dividing line between a useful material and an industry liability. By blending to 52% maximum active and 48% minimum inert, we step away from unnecessary hazard. Incidents related to static discharge or container rupture dropped off sharply in our own facilities after we standardized on this formulation. Cleanup after spills is another subject where we have direct insight. Instead of a sticky, aggressive liquid with an appetite for eating through gloves and floors, the solid blend sweeps up easily and doesn’t sink into work surfaces. Significant improvements in overall cleanliness and speed of response have emerged, which we have confirmed through both internal incident reports and feedback from contract partners handling waste.
Thermal and storage stability matter even more. Across our logistics teams, the peroxide blend ships in box-containers, sacks, or drums depending on volume, without the need for refrigerated transport except during midsummer spikes. During a recent six-month temperature cycling test—mimicking standard warehouse abuse—it retained active content and physical properties with deviations well inside alert parameters. This compares favorably to high-content peroxides, which we found tended to deteriorate after only a couple of weeks above 25°C.
Rubber cross-linking stands out as one of the most reliable applications. This grade brings controlled, predictable curing in everything from automobile parts to industrial gaskets. Process engineers appreciate its measured reactivity—working windows are long enough to keep processes running, but sharp enough to impart mechanical strength, elasticity, and thermal resistance where it counts. We have supplied this peroxide for various cable insulation setups, where uniform cross-linking ensures that finished cables perform under demanding electrical loads without breakdown. The blend’s resistance to premature activation in warmer plant environments allows for storage and staging without racing the clock against self-heating events or runaway reactions.
Some polyethylene foam lines looking for structure and resilience use this blend during expansion steps—it gives a fine foam structure that doesn’t collapse, with no residue detected by downstream QC. Athletic footwear midsoles, soft-touch instrument panels, and specialty industrial foams all benefit from a cross-linker that combines predictable radical yield with ease of dosing. We have run internal comparative trials alongside both higher content peroxides and traditional sulfur-based systems. This grade offered fewer instances of scorch or under-cure, and the foam cell structure passed inspection with less product wasted as off-grade scrap.
Our partners in the adhesives sector have found a niche for Tert-Butyl Cumyl Peroxide mix grades as initiators in specialty adhesives where slower, controlled cure times support better bond development and superior product shelf life. Batch production speeds up because there’s less downtime spent cleaning out agglomerated peroxide from mixing tanks. Fewer operator complaints also speak to the easier handling.
We routinely support users experimenting with twin-screw extrusion, rotational molding, and composite layup. The granular blend integrates well in dosing feeders and pre-weigh setups. Multiple in-house and field runs have proven that batch yield increases while operator intervention drops. The ease with which the solid carrier flows also helps reduce worker fatigue on long shifts.
No chemical product line stands up to long-term scrutiny without confronting the snags, jams, and production headaches found in the field. We have walked shop floors where improperly stored or segregated peroxides caused confusion and cross-contamination; mixing up high-content and blend grades resulted in over-curing and wasted product. To solve this, every shipment carries not just batch and lot numbers but color-coded labeling and mixing chart inserts to reinforce proper usage—details developed from calls and photos sent in by plant staff. In the rare case a customer reports material bridging or feeder blockages, our support team walks them through sieve checks or blending adjustments until problems clear.
Temperature excursions in summer sometimes stress the shipping chain. Real-world use suggests the blend can absorb temperature swings up to the point of melting the inert phase—a scenario easily avoided by standard shade and palette stacking. We’ve worked with customers to develop quick-response receiving protocols, including batch isolations, field temperature probes, and staff education kits that target peak risk months. So far, returns and rejections dropped below industry averages.
We see the small but critical touchpoints—say, a silo-cleaning vendor unfamiliar with peroxide hazards—create risk. We address this not just with documentation, but by running annual training sessions for all partners and contractors who might come into contact with our product. Lower injury rates and higher compliance have grown from this practice.
Our approach to manufacturing Tert-Butyl Cumyl Peroxide blends reflects a deep operational background. Chemists, engineers, and plant operators from our team have decades working inside heat-curing and cross-linking operations; we know what happens inside the mixer, on the shipping dock, in QC, or during a safety audit. Batches get tracked and release only after meeting multi-point checks, including on-line spectroscopy and real-world dispersion testing—in line with our ISO-certified quality system. This isn’t just compliance, it’s muscle memory built from resolving past incidents and dissatisfied customers.
Our site hosts routine customer audits, where plant teams follow the material from blending tanks to finished packaging. New hires run shadow shifts alongside veteran plant staff so tribal knowledge gets transferred, not lost. In one case, a tire factory’s switch from a standard dialkyl peroxide to our blend halved their off-grade rate and trimmed per-batch reprocessing time—documented in joint trial data we keep ready for review.
We maintain direct engagement with regulatory updates and field safety requirements. Our peroxide blends, including this Tert-Butyl Cumyl Peroxide grade, align with major regional guidelines and are scrutinized by in-house and external experts for compliance to transport and workplace safety standards. Besides MSDS documentation, we provide field-specific application tips for downstream compounding, ensuring safe and efficient use. Customers and partners often call us for troubleshooting or advice rather than third-party consultants—this trust builds from hands-on involvement, not generic product push.
Improvements don’t stop at the formula. We launched a proactive feedback loop so plant managers and operators can report exactly where the blend worked—or fell short. Based on this input, recent changes included rebalancing the particle size curve for even better flow and adding a light coating to further minimize dust. Tracing back a handful of line stops to bridging in feeder valves, we now run more aggressive blending cycles during production, smoothing out material consistency and reducing large aggregate formation. Each tweak gets logged, tracked, and reviewed for next-batch production—continuous improvement means tangible reductions in downtime and scrap.
Real accountability means owning results. We found that even with a near-perfect blend, occasional lot-to-lot variation affects end-use. To tackle this, we track every finished batch against customer returns and complaints, keeping a live log for trends. We welcome plant visits and encourage hands-on inspection of our QA logs. The goal remains clear: figure out and fix the problem before the product leaves our door. The difference from distributor-supplied peroxides—a blend that gets to market after layers of handling and degradation—is clear the moment material reaches the customer’s dock.
We see growth in sectors looking for both safety and performance, without sparing either. The more operators are responsible for both yield and workplace safety, the more they need a chemical that adapts to busy, crowded, and sometimes less than ideal environments. Frequent training, hands-on demonstrations, and open consultation keep us grounded in field realities, not just theoretical chemistry. Our Tert-Butyl Cumyl Peroxide blend stands as a response to decades of lived challenges, aiming to help manufacturers get the balance right—between optimal cross-linking, operator safety, and cost efficiency.
Chemistry evolves, plant requirements shift, and supply chains stretch further every year. What makes this blend relevant is its proven record in busy factories under pressure for quality and on-time delivery. Each batch reflects both lab science and factory floor adaptation—attention paid to every detail, direct answers to every challenge, and a toolkit of practical solutions for a world where no two days are ever quite the same. Every bag, drum, or container carries with it not just a carefully engineered product, but the weight of collective industry experience—ours and yours, working together for reliable performance, safety, and progress.