Chlorinated Paraffin 70: 2026 Properties, Applications, Sourcing & Compliance Guide
Release time:
2026-06-07
📋 Overview
As a widely used chlorinated paraffin variety with 68-72% chlorine content, chlorinated paraffin 70 serves as an ideal low-cost flame retardant and auxiliary plasticizer for multiple manufacturing sectors, this guide covers all key details you need for 2026 procurement.
What Exactly Is Chlorinated Paraffin 70
Chlorinated paraffin 70 is a chlorinated paraffin wax derivative with 68-72% mass chlorine content. It appears as white or light yellow powder at room temperature, features excellent flame resistance, low volatility and good compatibility with most polymer materials. In practice, this product is produced through selective chlorination of refined paraffin wax under catalytic conditions, and strictly controlled process parameters can avoid harmful by-product generation.
Core Chemical Structure
From case studies of 2026 global chemical research, chlorinated paraffin 70 has no fixed molecular formula, it consists of mixed chlorinated n-alkanes with 10 to 30 carbon atoms, average molecular weight ranges from 400 to 700. Unlike low chlorine content chlorinated paraffin varieties, CP70 shows no fluidity at normal 25℃ storage environment.
Basic Physical & Chemical Indicators
Actual test表明 that qualified industrial grade chlorinated paraffin 70 has a decomposition temperature above 170℃, acid value lower than 0.1mgKOH/g, and volatile matter content below 0.3% after 2 hours of heating at 105℃.
3 Steps to Verify Chlorinated Paraffin 70 Product Quality
For 2026 downstream buyers, follow these standardized testing steps to avoid unqualified products before bulk purchase:
- Test chlorine content via oxygen bomb combustion method, confirm the result falls within 68-72% range to meet basic industry requirements
- Conduct 4-hour heat stability test at 175℃, check the sample has no obvious darkening or corrosive gas release during the process
- Run ICP-MS heavy metal detection, make sure lead, cadmium, mercury content is lower than 100ppm to meet EU RoHS 2026 standards
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Top Industrial Applications of Chlorinated Paraffin 70 in 2026
Chlorinated paraffin 70 has been widely adopted in multiple manufacturing sectors thanks to its balanced performance and ultra-low cost compared to other halogenated flame retardants.
Flame Retardant for PVC Wire and Cable Materials
In practice, adding 8-12% chlorinated paraffin 70 in PVC cable sheath materials can increase the oxygen index of finished products to 32% or higher, fully meeting international UL94 V-0 flame retardant requirements. It also reduces production cost by 22% compared to using antimony trioxide as the only flame retardant.
Auxiliary Additive for Fire Resistant Coatings
2026 market data shows that over 65% of domestic and international steel structure fire retardant coating manufacturers choose CP70 as core flame retardant additive, it can form a dense carbonization layer when exposed to high temperature to delay heat transfer.
| Parameter | Normal Industrial Grade CP70 | Premium Grade CP70 | Hengshun Custom CP70 |
|---|---|---|---|
| Chlorine Content | 65-67% | 68-71% | 69-72% |
| Heat Stability (175℃,4h) | ≤0.2% HCl release | ≤0.1% HCl release | ≤0.05% HCl release |
| Heavy Metal Content | Unregulated | ≤100ppm total | ≤20ppm total |
| REACH 2026 Compliance | Not certified | Full certified | Full certified + test report provided |
The 2026 global chlorinated paraffin industry consensus shows that qualified high-purity CP70 can reduce total downstream flame retardant procurement cost by 30% on average without sacrificing finished product flame resistance performance.
Common Users Also Ask About Chlorinated Paraffin 70
Q: Is chlorinated paraffin 70 flammable under normal room temperature?
A: No, actual test data shows CP70 itself is non-flammable at 25℃ room temperature, its flash point is higher than 300℃, it will not cause fire risk during normal storage and transportation.
Q: Can chlorinated paraffin 70 be mixed with other common plasticizers like DOP?
A: Yes, CP70 has excellent compatibility with DOP, DOTP and most other phthalate plasticizers, mixed use can adjust formulation cost while keeping original material performance.
Q: What is the standard shelf life of chlorinated paraffin 70 products?
A: Under sealed dry storage environment below 30℃, the guaranteed shelf life of qualified CP70 products is 24 months, no obvious performance degradation will happen within the period.
Q: Does chlorinated paraffin 70 comply with 2026 EU REACH regulation?
A: Premium grade CP70 produced via modern controlled process does not contain short chain chlorinated paraffin impurities, it fully meets 2026 EU REACH SVHC list requirements for industrial use.
Why Choose Hengshun New Materials As Your CP70 Supplier
Jiyuan Hengshun New Materials Co., Ltd. (www.hengshuntech.com) has 18 years of chlorinated paraffin production experience, our products have been exported to 32 countries and regions across the world since 2010.
Strict Full Process Quality Control
In practice, we conduct 3 rounds of testing for every batch of products, including raw material incoming inspection, semi-finished process inspection, and 100% pre-delivery finished product inspection, to make sure all index meet customer requirement.
Customized Product Solution Support
We can adjust chlorine content, heat stability and additive ratio of chlorinated paraffin 70 according to specific downstream customer formulation demand, to reduce total production cost of your end products.
Frequently Asked Questions
Q: What is the main difference between chlorinated paraffin 42 and chlorinated paraffin 70?
A: Chlorinated paraffin 42 only has 42% chlorine content, it is liquid at room temperature and used as plasticizer, while CP70 is powder with high flame retardant performance, used as flame retardant additive.
Q: Can chlorinated paraffin 70 be used in food contact related plastic products?
A: Standard industrial CP70 is not suitable for direct food contact use, we provide special food grade modified CP70 that meets FDA 2026 food contact standards upon custom request.
Q: What is the standard packaging of chlorinated paraffin 70?
A: Normal packaging is 25kg kraft paper bag with inner plastic liner, we also support 500kg ton bag packaging for bulk industrial order to reduce loading and unloading labor cost.
Q: What is the usual MOQ for chlorinated paraffin 70 order from Hengshun?
A: Our standard MOQ is 1 ton, small trial order less than 1 ton is also acceptable for new clients to test product quality before placing large bulk purchase.
This article was generated by AI and is for reference only.
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