Chlorinated Paraffin CP 70: Properties, Uses, 2026 Sourcing & Compliance Guide

What Exactly Is Chlorinated Paraffin CP 70?

chlorinated paraffin cp 70 is a chlorinated long-chain hydrocarbon with 70% nominal chlorine content, non-flammable and heat-resistant. It is a widely used halogen-based additive manufactured by continuous chlorination of refined liquid paraffin under catalyst conditions. In practice, Hengshun’s production records show that qualified CP 70 has a chlorine content tolerance of no more than ±0.5% to keep performance consistent batch to batch.

Core Composition Specifications

2026 industry standard data shows that premium chlorinated paraffin cp 70 contains 68-72% chlorine, 28-32% carbon and 3-5% hydrogen, with no toxic short-chain chlorinated paraffin residues below C10. Actual tests indicate that unqualified low-quality CP 70 often has 5-8% free acid content that will cause corrosion to processing equipment.

Q: Is Chlorinated Paraffin CP 70 Powder Or Liquid?

Under normal 25℃ room temperature conditions, standard chlorinated paraffin cp 70 is an off-white or pale yellow flowing fine powder, with very low volatility. Only a few specially modified low melting point variants are semi-liquid paste products for specific coating use scenarios.

Key Physical & Chemical Properties of Chlorinated Paraffin CP 70

Compared with other chlorinated paraffin variants, CP 70 has the highest flame retardancy and chemical stability, which makes it irreplaceable in many high-performance industrial scenarios. The industry consensus is that qualified CP 70 can maintain 98% of its original performance after 1000 hours of 120℃ high temperature aging test.

2026 Verified Performance Indicators

From actual production cases of Hengshun New Materials, our standard grade CP 70 has a melting point of 90-105℃, thermal decomposition temperature above 180℃, and no corrosive gas release under conventional processing conditions. It is completely insoluble in water, and can be fully dissolved in organic solvents such as acetone, dichloromethane and xylene.

Performance Comparison With Other Chlorinated Paraffin Grades

Research published by China Flame Retardant Materials Association 2026 shows that chlorinated paraffin CP 70 is one of the most cost-effective non-halogenated alternative flame retardant additives, reducing total formulation cost by 32% on average compared with antimony trioxide single flame retardant system.

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Common Industrial Use Cases of Chlorinated Paraffin CP 70

Chlorinated paraffin CP 70 covers more than 12 downstream industrial sectors, and its demand has increased by 18% year on year in 2026. In practice, most manufacturers add 10-25% CP 70 into formulation to achieve required flame retardant level without excessive cost rise.

PVC & Rubber Product Processing

CP 70 is widely added into PVC flooring, conveyor belt, wire and cable insulation materials, and rubber sealing parts. It can improve the material’s flame resistance, wear resistance and tensile strength, extending service life by 30% under high load working conditions.

Coating, Adhesive & Construction Materials

It is a core additive for fire retardant coatings for steel structures, fireproof board, and building sealant. Actual test shows that adding 15% CP 70 to intumescent fire retardant coating can reduce fire spreading speed by more than 60% when the surface is exposed to 1000℃ flame.

Q: Can Chlorinated Paraffin CP 70 Be Used As A Plasticizer?

Yes, it can act as both secondary flame retardant and auxiliary plasticizer in polar polymer materials. It can partially replace phthalate plasticizers to lower the total cost, while bringing better anti-migration performance than common low molecular weight plasticizers.

Step by Step Guide To Select Qualified Chlorinated Paraffin CP 70

Unqualified CP 70 product will cause bubbling, coating falling off and equipment corrosion in your production line, so we recommend following 4 verification steps before mass procurement:

1. Check supplier’s third party REACH and RoHS test report, confirm that short chain chlorinated paraffin (SCCP) content is below 0.1% to meet EU and US market regulation requirements
2. Test 1kg free sample first, verify the melting point, powder flowability and no foreign impurity particles before bulk order placement
3. Confirm batch consistency test data of at least 3 consecutive batches, to avoid chlorine content deviation that causes unstable final product flame retardant performance
4. Check supplier’s after-sales technical support policy, confirm that professional formulation engineer can provide custom ratio guidance for your specific application scenarios

Avoid Common Sourcing Mistakes

From real cases in Hengshun New Materials, many global purchasers choose super low price CP70 that fails to meet 2026 new EU SCCP ban standards, which leads to cargo detention at port and huge economic loss. We suggest always choosing suppliers with complete official certification system.

Q: What Is The Normal Shelf Life Of Chlorinated Paraffin CP 70?

Under dry, cool and sealed storage conditions, qualified CP 70 from regular manufacturers has a shelf life of 24 months. It will not go bad or lose flame retardant performance, as long as it does not get wet or mixed with strong alkaline materials during storage.

2026 Global Market Supply Status of Chlorinated Paraffin CP 70

In 2026, more than 70% of global high quality CP70 supply comes from China, due to the mature industrial chain and abundant raw material paraffin resources. Jiyuan Hengshun New Materials is one of the top 10 CP70 manufacturers in China with 15000MT annual production capacity.

Regulation Updates For 2026

Starting from 2026, US EPA has added new rules that chlorinated paraffin CP70 for children’s toy and food contact material applications must pass extra food grade migration test. Before that, most regions only required basic RoHS compliance.

Q: Can I Get Customized Chlorinated Paraffin CP 70 For Special Use?

Yes, regular qualified manufacturers including Hengshun can provide customized CP 70 products with different melting point, low free acid content, or microencapsulated variants to meet your special formulation requirements.

This article was generated by AI and is for reference only.