BIPB · DCP · BPDH · Factory Direct

Crosslinking Peroxide Manufacturer & Supplier in China

LAAP is China's leading manufacturer of crosslinking peroxides for rubber vulcanization, wire & cable insulation, PE foam, and polyolefin crosslinking. Factory-direct supply of BIPB (CAS 25155-25-3), DCP (CAS 80-43-3), BPDH and more. REACH certified, MOQ 25 kg.

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Crosslinking Peroxide Products

All products are manufactured at LAAP's factory in Lanzhou, China, with REACH certification.

BIPB

CAS 25155-25-3

Decomp: 118°C (1h t½)

EPDM, EVA, CPE, silicone rubber; wire & cable, shoe soles

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DCP

CAS 80-43-3

Decomp: 116°C (1h t½)

Rubber vulcanization, XLPE cable, EVA foam

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BPDH

CAS 78-63-7

Decomp: 128°C (1h t½)

High-temp rubber, EPDM seals, automotive

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DBPB

CAS 2781-00-2

Decomp: 124°C (1h t½)

Specialty rubber, polyolefin crosslinking

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Applications of Crosslinking Peroxides

Wire & Cable Insulation

BIPB and DCP are used for XLPE cable crosslinking, providing superior dielectric properties and heat resistance.

Rubber Vulcanization

DCP, BIPB, and BPDH vulcanize EPDM, silicone, and CPE rubber without sulfur, giving odor-free products.

EVA Foam (Shoe Soles)

BIPB-40 is the standard crosslinking agent for EVA foam shoe soles, providing consistent cell structure and density.

PE-X Piping

DCP and other dialkyl peroxides crosslink PE pipes (PE-Xa method) for hot water and radiant heating systems.

Silicone Rubber

BIPB is preferred for HTV silicone molding due to its high-temperature decomposition and odor-free byproducts.

Automotive Seals

High-temp BPDH is used for demanding automotive rubber seals requiring heat resistance above 150°C.

FAQ: Crosslinking Peroxides

What is the difference between BIPB and DCP for rubber crosslinking?

BIPB (CAS 25155-25-3) is odor-free and leaves no residue, making it preferred for food-contact rubber and silicone applications. DCP (CAS 80-43-3) is lower cost and widely used for general rubber vulcanization. BIPB has a slightly higher decomposition temperature.

Can crosslinking peroxides be used for PE pipe crosslinking?

Yes. DCP and BPDH are commonly used for PE-X pipe crosslinking (Engel method / silane method). BIPB is also used. The peroxide content and cure cycle are specified per pipe standard.

What is the safe handling temperature for BIPB (25155-25-3)?

BIPB should be stored below 30°C. It has a SADT (Self-Accelerating Decomposition Temperature) of about 80°C. Avoid heat sources and friction. LAAP provides full safety data sheets for all crosslinking peroxide grades.

Do you supply crosslinking peroxides on masterbatch or in liquid form?

LAAP supplies BIPB as BIPB-40 (40% active in polymer carrier) for easy processing, as well as neat powder grades. DCP is supplied as DCP-99 (99% powder) and various masterbatch grades. Please contact us for your specific formulation needs.

How to Source Organic Peroxides from China

Four different buying jobs, four different pages. Pick the one that matches what you are actually trying to do.

Crosslinking peroxides are the organic peroxides that create carbon-carbon bonds between polymer chains. LAAP manufactures the four grades that carry most crosslinking duty in China — BIPB (CAS 25155-25-3), DCP (CAS 80-43-3), BPDH (CAS 78-63-7) and DBPB (CAS 2781-00-2) — and supplies them factory-direct.

Choosing a crosslinking peroxide is a temperature decision first and a cost decision second. DCP is the lowest-cost option and decomposes at 117°C (10 h half-life), but it releases acetophenone, which is the usual cause of odour and taste failures. BIPB decomposes at 115°C, costs more, and gives essentially odourless byproducts, which is why it is the default for EPDM weatherstrip, HTV silicone, food-contact rubber and interior automotive parts.

Tell us the polymer, the process temperature and the odour requirement and we will recommend the grade and the loading. We can supply crosslinking peroxides as neat powder, flakes, paste or masterbatch, and we can quote against the brand-equivalent product you are currently running on.

Also see: Organic Peroxide Supplier & Wholesaler in China · Organic Peroxide Factory in China · Peroxide Curing Agents

Source Crosslinking Peroxides from China's Factory

Request factory-direct pricing on BIPB, DCP, BPDH and other crosslinking peroxides. Our team responds within 24 hours.

Request a Quote info@lzaux.com

Also see: Our Factory · Peroxide Curing Agents