PBT多少钱一公斤?算完成本才知道谁真便宜
PBT多少钱一公斤?
这个问题一搜,从十六块一公斤到二十五块一公斤,报价差得比玻纤含量还多。有人说我买的十八块的长春1100用得挺好,有人说我买的二十二块的巴斯夫B4500才叫稳定。到底差在哪?
说实话,问PBT多少钱一公斤的人,大概率还没搞懂PBT这东西不是一个料——纯树脂、玻纤增强、阻燃、增强阻燃,每个分支价格都不一样。你拿纯树脂的价和增强阻燃比,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。
巴斯夫(BASF)
B4500,纯树脂通用级,参考价约20-25元/公斤。Ultradur系列,注塑级,电子电器、连接器。
B4406G4,20%玻纤增强阻燃V0,参考价约22-25元/公斤。增强阻燃,电子连接器、开关。
长春化工(Chang Chun)
1100-104Q,纯树脂通用级,参考价约18元/公斤。台湾品牌,性价比高,注塑级通用。
3015-201,15%玻纤增强,参考价约19-21元/公斤。增强级,汽车部件、电子外壳。
4115-226U,15%玻纤增强阻燃V0,参考价约19-22元/公斤。增强阻燃,连接器、继电器。
宝理(Polyplastics)
3300-ED3002,纯树脂高流动,参考价约16元/公斤。Duranex系列,薄壁注塑、复杂结构件。
南通星辰(中企大厂)
1084,纯树脂通用级,参考价约16-18元/公斤。国产主力,性价比高,通用注塑。
2100M,30%玻纤增强,参考价约18-20元/公斤。增强级,汽车、电子部件。
一句话总结:纯树脂16-20块,玻纤增强18-22块,增强阻燃20-26块。你要的是啥性能,决定了你该在哪一档选。
二、同是PBT,价差凭什么这么大
PBT的价格差,主要藏在四个地方。
第一,玻纤含量不同。纯树脂便宜,15%玻纤贵一点,30%玻纤更贵。玻纤加得越多,强度越高,价格也越高。
第二,阻燃等级不同。纯树脂便宜,阻燃V0贵很多。阻燃剂是PBT里最贵的添加剂之一,无卤阻燃比溴系阻燃更贵。
第三,流动性不同。高流动适合薄壁注塑,加工效率高,价格也贵;通用流动价格适中。
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。同样是增强阻燃,巴斯夫比南通星辰贵20%,贵的是品控和研发。
三、采购避坑:别让阻燃等级骗了你
我见过太多采购,比价比到最后选了最便宜的十六块的,然后做出来的制品阻燃不达标、强度不够、客户退货,一次损失够买半年的好料。
PBT采购这行,水比你想的深。三个坑必须绕开:
第一,看玻纤含量和阻燃等级不看牌号。同一个牌号不同批次玻纤含量可能波动,拿到料先测灰分和阻燃等级,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。有些贸易商拿纯树脂当增强级卖,拿不阻燃当阻燃卖。要COA、要物性报告、要UL黄卡,三证合一才敢用。
第三,别只比单价,算综合成本。A料单价16块,做出来次品率5%;B料单价22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——比如要阻燃又要高流动、要增强又要增韧、要无卤又要低成本——那不是PBT的问题,是你需要的不是标准PBT,是改性PBT。
这时候可以看看宁波科隆新材目前在做的高性能改性PBT方案,玻纤增强、无卤阻燃、增韧、耐磨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PBT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,PBT行情一天一个样,原油、PTA、BDO、汇率都在动。
如果你需要巴斯夫、长春、宝理、南通星辰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PBT这事儿,十六的和二十五的,差的不是九块。
单价是门槛,选对玻纤含量和阻燃等级才是底线。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PBT采购上踩过什么坑?是阻燃不达标还是玻纤含量不够?评论区聊聊,点赞最高的三位,送一份PBT主流牌号选型对照表。
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How much is PBT per kilogram?
PBT is not one material: flame-retardant, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
BASF
B4500, approx. CNY 20-25/kg. injection; electronics; connectors.
B4406G4, approx. CNY 22-25/kg. electronics connectors.
PBT
1100-104Q, approx. CNY 18/kg. injection general.
3015-201, approx. CNY 19-21/kg. reinforced; automotive parts.
4115-226U, approx. CNY 19-22/kg. connectors.
Polyplastics
3300-ED3002, approx. CNY 16/kg. complex structural parts.
PBT
1084, approx. CNY 16-18/kg. general injection.
2100M, approx. CNY 18-20/kg. reinforced; automotive; electronic components.
2. Why prices differ so much
Four factors: (1) glass-fiber content — lower levels are cheaper; higher levels give better performance but cost more. (2) flame-retardant grade — premium grades need special formulations and cost more. (3) flow — 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 PBT, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified PBT solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified PBT 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; PBT 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.