PP/EPDM多少钱一公斤?
这个问题一搜,从十块五一公斤到三十六块一公斤,报价差得比冲击强度还多。有人说我买的十块五的金发T10用得挺好,有人说我买的三十六的陶氏EPDM 3745才叫高端。到底差在哪?
说实话,问PP/EPDM多少钱一公斤的人,大概率还没搞懂PP/EPDM这东西不是一个料——纯EPDM橡胶、PP/EPDM合金、PP+EPDM+滑石粉、PP+EPDM+玻纤,每个分支价格都不一样。你拿合金料的价和纯EPDM比,那不叫比价,叫被忽悠。
PP/EPDM是聚丙烯加三元乙丙橡胶的共混物,核心卖点是高抗冲,汽车保险杠、挡泥板、内饰件都用它。
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。
金发科技(中企大厂)
PP+EPDM-T20,20%滑石粉耐冲击高强度,参考价约11元/公斤。汽车保险杠、挡泥板。
PP+EPDM-T10 API-1025,10%滑石粉高熔脂低气味,参考价约10.5元/公斤。汽车内饰、抗老化。
金发PP/EPDM通用级,参考价约10-13元/公斤。性价比高,汽车、通用注塑。
埃克森美孚(ExxonMobil,美国)
Vistalon EPDM 3702,柔韧高弹PP增韧,参考价约29元/公斤。汽车内饰件增韧、注塑挤出。
ExxonMobil PP7033N,高抗冲共聚PP,参考价约8-10元/公斤。汽车、通用注塑。
陶氏(Dow,美国)
Nordel EPDM 3745P,注塑级高抗冲,参考价约36元/公斤。高端汽车、工业部件。
Nordel IP 3722P,EPDM颗粒TPV基料,参考价约25-30元/公斤。改性、软质橡胶制品。
锦湖(Kumho,韩国)
Kumho EPDM 330,通用级,参考价约20-25元/公斤。PP增韧、通用橡胶制品。
一句话总结:PP/EPDM合金10-13块,通用EPDM 20-29块,高端EPDM 29-36块。你要的是啥冲击强度和用途,决定了你该在哪一档选。
二、同是PP/EPDM,价差凭什么这么大
PP/EPDM的价格差,主要藏在四个地方。
第一,EPDM含量不同。EPDM含量10%便宜,含量30%以上贵。EPDM加得越多,抗冲越好,价格也越高。
第二,填料不同。不加填料的纯合金贵,加20%滑石粉的便宜,加玻纤的更贵。填料降低成本但影响性能。
第三,冲击强度不同。常温抗冲一般价格便宜,低温抗冲-30℃不脆价格贵。汽车外饰必须低温抗冲。
第四,品牌和产地。进口EPDM溢价高但批次稳定,国产合金性价比高但质量参差。同样是EPDM,陶氏比国产贵50%以上,贵的是品控和研发。
三、采购避坑:别让冲击强度骗了你
我见过太多采购,比价比到最后选了最便宜的十块的,然后做出来的保险杠低温脆裂、客户退货,一次损失够买半年的好料。
PP/EPDM采购这行,水比你想的深。三个坑必须绕开:
第一,看悬臂梁冲击强度和熔指不看牌号。同一个牌号不同批次性能可能波动,拿到料先测冲击强度和熔指,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。有些贸易商拿普通PP当PP/EPDM卖,拿低EPDM当高EPDM卖。要COA、要冲击测试报告、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10块,做出来低温脆裂率5%;B料单价13块,脆裂率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——比如要阻燃又要高抗冲、要低气味又要低成本、要玻纤增强又要耐候——那不是PP/EPDM的问题,是你需要的不是标准PP/EPDM,是改性PP/EPDM。
这时候可以看看宁波科隆新材目前在做的高性能改性PP/EPDM方案,玻纤增强、阻燃、低气味、耐候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PP/EPDM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,PP/EPDM行情一天一个样,丙烯、乙烯、双环戊二烯、汇率都在动。
如果你需要金发、埃克森美孚、陶氏、锦湖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PP/EPDM这事儿,十块五的和三十六的,差的不是二十五块五。
单价是门槛,选对EPDM含量和冲击强度才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤塑料,是一公斤能做出不脆裂保险杠的方案。把账算到每件制品上,再加上退货损失,你才知道谁真便宜谁真贵。
你在PP/EPDM采购上踩过什么坑?是低温脆裂还是气味大?评论区聊聊,点赞最高的三位,送一份PP/EPDM主流牌号选型对照表。
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PP/EPDM注塑常见问题及解决
How much is PP/EPDM per kilogram?
PP/EPDM is not one material: different grades, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
Kingfa
approx. CNY 11/kg.
approx. CNY 10.5/kg. automotive interiors.
approx. CNY 10-13/kg. automotive; general injection.
ExxonMobil
Vistalon EPDM 3702, approx. CNY 29/kg. injection extrusion.
ExxonMobil PP7033N, approx. CNY 8-10/kg. automotive; general injection.
Dow
Nordel EPDM 3745P, injection high impact, approx. CNY 36/kg. premium automotive; industrial parts.
Nordel IP 3722P, approx. CNY 25-30/kg.
Kumho
Kumho EPDM 330, general-purpose, approx. CNY 20-25/kg. general rubber products.
2. Why prices differ so much
Four factors: (1) composition — lower levels are cheaper; higher levels give better performance but cost more. (2) grade level — premium grades need special formulations and cost more. (3) application — special applications need special formulations or certification and cost more. (4) Brand and origin — imports carry a premium but offer batch stability; for the same grade, imports cost 30-50% more than domestic, paying for quality control and R&D.
3. Procurement pitfalls
The cheapest material often fails on performance and triggers customer returns. Three traps to avoid:
First, test key properties against the COA instead of trusting the grade name — performance of the same grade can fluctuate between batches. Second, watch out for substitution fraud: some traders pass off cheaper or recycled material as the real thing; demand the COA, a test report and original packaging before use. Third, don't compare unit price alone — calculate total cost per finished part, including rejected-goods loss; a higher-priced grade with a 1% defect rate is often cheaper than a low-priced one with 5% rejects.
4. Standard grades not enough? Consider modified compounds
If standard grades always fall short — for example you need flame retardancy AND high transparency, reinforcement AND chemical resistance, or low cost AND food grade — you don't need standard PP/EPDM, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PP/EPDM solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PP/EPDM quote reference — it saves not only money but also trial-and-error time.
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; PP/EPDM prices change daily as feedstocks and exchange rates move. If you need same-day quotes for specific grades, message us and we will send a live price sheet. No beating around the bush — real numbers.
Final words
Unit price is the threshold; choosing the right grade and performance is the baseline. Do the math per finished part, add rejected-goods loss, and you will know who is truly cheap and who is truly expensive.
What pitfalls have you hit when buying this material? The three most-liked comments will receive a grade selection guide.