TPS多少钱一公斤?今日报价,苯乙烯弹性体的价格跟着苯乙烯走
TPS多少钱一公斤?
这个问题一搜,从十块一公斤到四十五块一公斤,报价差得比硬度范围还多。有人说我买的十三块的巴陵SEBS用得挺好,有人说我买的四十五块的科腾SEBS才叫耐老化。到底差在哪?
说实话,问TPS多少钱一公斤的人,大概率还没搞懂TPS这东西不是一个料——SBS基、SEBS基、SIS基、不同硬度、不同填充量,每个分支价格都不一样。你拿SBS的价和SEBS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。
科腾(Kraton,美国)
SEBS G1650,通用型,参考价约30-45元/公斤。充油可调硬度,线材、成人用品、密封。
SEBS G1653V,高弹性耐老化,参考价约35-50元/公斤。塑料改性、玩具、线材。
SBS D1155,高硬度,参考价约32.5元/公斤。高内聚力,喷胶、胶粘剂。
SEBS G1701,高粘度,参考价约29.6元/公斤。沥青改性、胶粘剂。
李长荣(LCY,中国台湾)
SBS 1475,低粘度热熔级,参考价约18元/公斤。高强度,鞋底加工、热熔胶。
SEBS 7551,通用级,参考价约17-18元/公斤。性价比高,TPR原料、塑料增韧。
中石化巴陵石化(中企大厂)
SEBS YH-502,通用级,参考价约13.5元/公斤。国产主力,性价比高,TPR原料、线材。
SEBS YH-602,粉末级,参考价约13.5-18元/公斤。涂料、胶粘剂、成人用品。
SIS YH-1125,苯乙烯异戊二烯,参考价约15-20元/公斤。热熔胶、压敏胶。
一句话总结:SBS基10-20块,SEBS基13-30块,高端SEBS基30-50块,SIS基15-25块。你要的是啥基料和硬度,决定了你该在哪一档选。
二、同是TPS,价差凭什么这么大
TPS的价格差,主要藏在四个地方。
第一,基料不同。SBS便宜,SEBS贵,SIS适中。SBS不耐老化、易黄变,SEBS耐老化、耐候,价格差一倍。
第二,苯乙烯含量不同。苯乙烯含量越高,硬度越高、强度越好,价格也越贵。高苯乙烯含量比低含量贵20-30%。
第三,填充量不同。填充油和碳酸钙越多,价格越便宜,但性能越差。高填充TPS可以做到十块一公斤,但弹性和耐候都不行。
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SEBS,科腾比巴陵贵50-100%,贵的是品控和研发。
三、采购避坑:别让基料骗了你
我见过太多采购,比价比到最后选了最便宜的十块的,然后做出来的制品回弹不够、易黄变、客户退货,一次损失够买半年的好料。
TPS采购这行,水比你想的深。三个坑必须绕开:
第一,看硬度和拉伸强度不看牌号。同一个牌号不同批次硬度可能波动,拿到料先测硬度和拉伸,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。有些贸易商拿高填充当纯料卖,拿SBS当SEBS卖。要COA、要物性报告、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,做出来次品率5%;B料单价30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——比如要阻燃又要高回弹、要耐老化又要耐油、要食品级又要低成本——那不是TPS的问题,是你需要的不是标准TPS,是改性TPS。
这时候可以看看宁波科隆新材目前在做的高性能改性TPS方案,SEBS基、阻燃、耐油、耐老化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TPS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,TPS行情一天一个样,苯乙烯、丁二烯、异戊二烯、汇率都在动。
如果你需要科腾、李长荣、巴陵石化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TPS这事儿,十块的和四十五的,差的不是三十五。
单价是门槛,选对基料和填充量才是底线。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TPS采购上踩过什么坑?是回弹不够还是以次充好?评论区聊聊,点赞最高的三位,送一份TPS主流牌号选型对照表。
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TPS注塑常见问题及解决
How much is TPS per kilogram?
TPS 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.
TPS
SEBS G1650, approx. CNY 30-45/kg.
SEBS G1653V, high-elasticity aging-resistant, approx. CNY 35-50/kg. plastics modification; toys.
SBS D1155, approx. CNY 32.5/kg. adhesives.
SEBS G1701, approx. CNY 29.6/kg. adhesives.
TPS
SBS 1475, approx. CNY 18/kg. high-strength; hot-melt adhesives.
SEBS 7551, general-purpose, approx. CNY 17-18/kg.
TPS
SEBS YH-502, general-purpose, approx. CNY 13.5/kg.
SEBS YH-602, powder, approx. CNY 13.5-18/kg. coatings; adhesives.
SIS YH-1125, approx. CNY 15-20/kg. hot-melt adhesives.
2. Why prices differ so much
Four factors: (1) composition — lower levels are cheaper; higher levels give better performance but cost more. (2) styrene content — 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 TPS, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified TPS solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified TPS 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; TPS 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.