CPE多少钱一公斤？货源参考，氯化聚乙烯的价格藏在氯含量里
CPE多少钱一公斤？
这个问题一搜，从八块一公斤到十八块一公斤，报价差得比氯含量还多。有人说我买的八块的亚星135A用得挺好，有人说我买的十八块的陶氏CPE才叫稳定。到底差在哪？
说实话，问CPE多少钱一公斤的人，大概率还没搞懂CPE这东西不是一个料——135A型、140B型、6000型、3000型、注塑级，每个分支价格都不一样。你拿135A的价和6000型比，那不叫比价，叫被忽悠。
一、主流牌号报价（外企+中企）
先把市面上走量的牌号和参考价摆出来。以下为近期市场参考价，实时价格以当日询价为准。
潍坊亚星（中企大厂）
CPE 135A，耐候级增韧改性，参考价约8-10元/公斤。氯含量35%，PVC增韧、管材、型材。
CPE 140B，挤出级，参考价约12元/公斤。耐油耐臭氧，电线电缆、胶管。
WEIPREN 6000，注塑级，参考价约9-13元/公斤。型材、片材、配件、电线电缆。
WEIPREN 3000，通用级，参考价约9-11元/公斤。塑料改性、PVC增韧。
WEIPREN 2135，增韧级，参考价约9-10元/公斤。PVC增韧、型材。
陶氏（Dow，美国）
CPE 7100，通用级，参考价约18元/公斤。高性能，塑料改性、橡胶共混。
CPE 3611E，特种级，参考价约18-22元/公斤。高端应用。
CPE CM 0730，注塑级，参考价约18-20元/公斤。注塑制品。
日照三星化工（中企）
CPE 135A，通用级，参考价约8-10元/公斤。性价比高，PVC增韧。
一句话总结：通用增韧级8-10块，挤出/注塑级9-13块，高性能级13-18块，进口特种级18-22块。你要的是啥氯含量和用途，决定了你该在哪一档选。
二、同是CPE，价差凭什么这么大
CPE的价格差，主要藏在四个地方。
第一，氯含量不同。氯含量30%的弹性好，氯含量40%的阻燃好。氯含量决定了性能和用途，也决定了价格。
第二，残余结晶度不同。残余结晶度越低，弹性越好，价格也越贵。135A型残余结晶度0.05%，是高性能增韧剂。
第三，门尼粘度不同。门尼粘度决定了加工性能，高粘度适合挤出，低粘度适合注塑。粘度不同价格也不同。
第四，品牌和产地。进口溢价高但批次稳定，国产性价比高但质量参差。同样是135A，陶氏比亚星贵50-100%，贵的是品控和研发。
三、采购避坑：别让氯含量骗了你
我见过太多采购，比价比到最后选了最便宜的八块的，然后做出来的制品增韧不够、氯含量不达标、客户退货，一次损失够买半年的好料。
CPE采购这行，水比你想的深。三个坑必须绕开：
第一，看氯含量和门尼粘度不看牌号。同一个牌号不同批次性能可能波动，拿到料先测氯含量和门尼粘度，和COA对得上再用。别听销售说"差不多"，差不多就是差很多。
第二，警惕以次充好。有些贸易商拿低氯含量当高氯含量卖，拿回收料当新料卖。要COA、要检测报告、要原厂包装，三证合一才敢用。
第三，别只比单价，算综合成本。A料单价8块，做出来次品率5%；B料单价12块，次品率1%。算到每件制品上，B料反而更便宜。
四、标准牌号满足不了？看看改性方案
如果你发现标准牌号怎么选都差点意思——比如要阻燃又要高弹性、要耐油又要耐候、要低成本又要高性能——那不是CPE的问题，是你需要的不是标准CPE，是改性CPE。
这时候可以看看宁波科隆新材目前在做的高性能改性CPE方案，阻燃、耐油、耐候、增韧这些方向都有对应牌号在做。有特殊需求的可以私信要一份改性CPE的报价参考，比自己买基料再加助剂调试，省的不只是钱，还有试错的时间。
说白了，标准料是大锅饭，改性料是定制菜。你的制品要求越高，越需要定制。
五、常用牌号，私信给你当日报价
上面的价格都是参考价，CPE行情一天一个样，高密度聚乙烯、液氯、汇率都在动。
如果你需要潍坊亚星、陶氏、日照三星这些品牌的具体牌号当日报价，私信我，发你一份实时价格表。不绕弯子，报实数。
写在最后
买CPE这事儿，八块的和十八的，差的不是十块。
单价是门槛，选对氯含量和用途才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料，是一公斤能做出合格制品的方案。把账算到每件制品上，再加上次品退货损失，你才知道谁真便宜谁真贵。
你在CPE采购上踩过什么坑？是增韧不够还是氯含量不达标？评论区聊聊，点赞最高的三位，送一份CPE主流牌号选型对照表。
CPE和PVC有什么区别
CPE氯含量怎么选
CPE和MBS有什么区别
CPE改性料厂家怎么选
CPE加工常见问题及解决
How much is CPE per kilogram? Source reference — the price of chlorinated polyethylene hides in chlorine content
How much is CPE per kilogram?
A quick search shows quotes ranging from CNY 8/kg to CNY 18/kg — a spread wider than the chlorine content itself. Some buyers say the CNY 8 Yaxing 135A works fine; others insist only the CNY 18 Dow CPE counts as stable. Where does the difference really lie?
Honestly, anyone asking "how much is CPE per kilo" probably has not yet understood that CPE is not a single material — 135A type, 140B type, 6000 type, 3000 type and injection grades each carry a different price. Comparing a 135A quote with a 6000-type one is not price comparison; it is how you get fooled.
1. Mainstream grade quotes (imported + domestic)
Here are the high-volume grades and reference prices on the market. Figures below are recent market references; live prices are subject to same-day inquiry.
Weifang Yaxing (Chinese major)
CPE 135A, weather-resistant toughening modifier, approx. CNY 8-10/kg. Chlorine content 35%; PVC toughening, pipe, profiles.
CPE 140B, extrusion grade, approx. CNY 12/kg. Oil- and ozone-resistant; wire and cable, hoses.
WEIPREN 6000, injection grade, approx. CNY 9-13/kg. Profiles, sheet, fittings, wire and cable.
WEIPREN 3000, general-purpose grade, approx. CNY 9-11/kg. Plastics modification, PVC toughening.
WEIPREN 2135, toughening grade, approx. CNY 9-10/kg. PVC toughening, profiles.
Dow (USA)
CPE 7100, general-purpose grade, approx. CNY 18/kg. High performance; plastics modification, rubber blending.
CPE 3611E, specialty grade, approx. CNY 18-22/kg. Premium applications.
CPE CM 0730, injection grade, approx. CNY 18-20/kg. Injection-molded products.
Rizhao Sanxing Chemical (Chinese producer)
CPE 135A, general-purpose grade, approx. CNY 8-10/kg. Cost-effective; PVC toughening.
In short: general toughening grades CNY 8-10, extrusion/injection grades CNY 9-13, high-performance grades CNY 13-18, imported specialty grades CNY 18-22. The chlorine content and application you need decide which tier you belong in.
2. Why do CPE prices differ so much
The CPE price gap mainly hides in four factors.
First, chlorine content. Around 30% chlorine gives good elasticity; around 40% gives good flame retardancy. Chlorine content determines both performance and application — and price.
Second, residual crystallinity. The lower the residual crystallinity, the better the elasticity and the higher the price. Type 135A has a residual crystallinity of 0.05%, making it a high-performance toughening agent.
Third, Mooney viscosity. Mooney viscosity determines processability: high viscosity suits extrusion, low viscosity suits injection molding. Different viscosity, different price.
Fourth, brand and origin. Imports carry a premium but offer batch stability; domestic grades offer value but uneven quality. For the same 135A, Dow costs 50-100% more than Yaxing — you pay for quality control and R&D.
3. Procurement pitfalls: don't let the chlorine content fool you
I have seen too many buyers end up choosing the cheapest CNY 8 material after endless price comparison, only to have parts fail on toughening and chlorine content, trigger customer returns — one loss enough to buy half a year of good material.
Procurement of CPE is deeper water than you think. Three traps must be avoided:
First, test chlorine content and Mooney viscosity instead of trusting the grade name. Performance of the same grade can fluctuate between batches. Test against the COA before use. Don't listen to salespeople saying "close enough" — close enough is far apart.
Second, watch out for substitution fraud. Some traders sell low-chlorine as high-chlorine, or recycled as virgin. Demand the COA, a test report and original packaging. Only accept material with all three.
Third, don't compare unit price alone — calculate total cost. Material A at CNY 8/kg yields a 5% defect rate; material B at CNY 12/kg yields 1%. Per finished part, B is actually cheaper.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — you need flame retardancy AND high elasticity, oil resistance AND weatherability, or low cost AND high performance — the problem is not CPE itself; you don't need standard CPE, you need modified CPE.
Ningbo Kolong New Materials is developing high-performance modified CPE solutions, with grades covering flame retardancy, oil resistance, weatherability and toughening. For special needs, message us for a modified CPE quote reference — it saves not only money but also trial-and-error time compared with buying base resin and tuning additives yourself.
In plain terms: standard grades are a big pot of shared rice; modified compounds are a dish cooked to order. The higher your requirements, the more you need customization.
5. Popular grades — same-day quotes via message
All prices above are references. CPE prices change daily — HDPE, liquid chlorine and exchange rates all move.
If you need same-day quotes for specific grades from Weifang Yaxing, Dow or Rizhao Sanxing, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
For CPE, the difference between CNY 8 and CNY 18 is not CNY 10.
Unit price is the threshold; choosing the right chlorine content and application is the baseline. Don't let the quote sheet fool you — you are not buying one kilogram of plastic, you are buying a solution for making parts that pass. Do the math per finished part, add in the loss from rejected goods, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying CPE — insufficient toughening or off-spec chlorine content? Share in the comments; the three most-liked readers will receive a CPE grade selection guide.
