UP多少钱一公斤?
这个问题一搜,从七块五一公斤到三十一块六一公斤,报价差得比苯乙烯含量还多。有人说我买的七块五的国产通用级用得挺好,有人说我买的三十一的亚什兰5500C才叫高端。到底差在哪?
说实话,问UP多少钱一公斤的人,大概率还没搞懂UP这东西不是一个料——通用手糊级、缠绕级、SMC/BMC级、耐化学级、食品级,每个分支价格都不一样。你拿通用手糊的价和耐化学级比,那不叫比价,叫被忽悠。
UP就是不饱和聚酯树脂,热固性塑料,玻璃钢、人造石、工艺品、防腐内衬都用它。
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。
亚什兰(Ashland,美国)
Aropol 411-350,环氧乙烯基耐酸耐碱,参考价约26.5元/公斤。脱硫塔、污水池、防腐。
Aropol 5500C,触变预促进改性环氧乙烯基,参考价约31.64元/公斤。低收缩、高端防腐。
Aropol TL 50480,非触变非促进车箱板树脂,参考价约20-25元/公斤。喷射工艺、大型平板。
长兴化学(Eternal,中国台湾)
Eterset 2597PT,邻苯型低粘度预促进触变,参考价约15.88元/公斤。手糊喷射、渔船游艇、游泳池。
长兴通用手糊级,参考价约12-16元/公斤。通用玻璃钢、工艺品。
国产UP(常州华科/江苏富菱等中企大厂)
196通用级,参考价约14元/公斤。通用手糊、玻璃钢制品。
189船用树脂,参考价约11.5元/公斤。渔船、游艇、水上制品。
通用手糊级,参考价约7.5-13.85元/公斤。性价比高,通用玻璃钢。
人造石专用树脂,参考价约10-15元/公斤。人造石、石英石。
一句话总结:通用手糊7.5-14块,船用/人造石10-16块,乙烯基防腐20-32块。你要的是啥耐化学和用途,决定了你该在哪一档选。
二、同是UP,价差凭什么这么大
UP的价格差,主要藏在四个地方。
第一,树脂类型不同。邻苯型便宜,间苯型适中,乙烯基酯型贵。乙烯基酯树脂耐化学最好,价格也最高。
第二,苯乙烯含量不同。苯乙烯含量30%左右便宜,含量40%以上粘度低但价格略高。苯乙烯是稀释剂,含量影响粘度和成本。
第三,用途不同。通用手糊便宜,SMC/BMC模压适中,食品级/医疗级贵。特殊用途需要特殊配方和认证。
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。同样是乙烯基酯,亚什兰比国产贵50-100%,贵的是品控和研发。
三、采购避坑:别让苯乙烯含量骗了你
我见过太多采购,比价比到最后选了最便宜的七块五的,然后做出来的玻璃钢强度不够、固化慢、客户退货,一次损失够买半年的好料。
UP采购这行,水比你想的深。三个坑必须绕开:
第一,看粘度和凝胶时间不看牌号。同一个牌号不同批次性能可能波动,拿到料先测粘度和凝胶时间,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。有些贸易商拿邻苯型当间苯型卖,拿普通型当乙烯基酯卖。要COA、要耐化学测试、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7.5块,做出来次品率5%;B料单价14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——比如要阻燃又要低收缩、要耐化学又要食品级、要低成本又要高强度——那不是UP的问题,是你需要的不是标准UP,是改性UP。
这时候可以看看宁波科隆新材目前在做的高性能改性方案,阻燃、低收缩、耐化学、高强度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,UP行情一天一个样,苯酐、顺酐、苯乙烯、汇率都在动。
如果你需要亚什兰、长兴、国产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UP这事儿,七块五的和三十一的,差的不是二十三块五。
单价是门槛,选对树脂类型和用途才是底线。别让报价单上的数字迷惑了你——你买的不是一公斤树脂,是一公斤能做出合格玻璃钢的方案。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UP采购上踩过什么坑?是强度不够还是固化慢?评论区聊聊,点赞最高的三位,送一份UP主流牌号选型对照表。
UP和环氧树脂有什么区别
UP苯乙烯含量怎么选
UP和乙烯基酯有什么区别
UP改性料厂家怎么选
UP手糊常见问题及解决
How much is UP per kilogram?
UP is not one material: food-grade, and each carries a different price.
1. Mainstream grade quotes (imported + domestic) — recent market references; live prices subject to same-day inquiry.
UP
Aropol 411-350, approx. CNY 26.5/kg.
Aropol 5500C, approx. CNY 31.64/kg.
Aropol TL 50480, approx. CNY 20-25/kg.
UP
Eterset 2597PT, approx. CNY 15.88/kg.
approx. CNY 12-16/kg.
Domestic UP
approx. CNY 14/kg.
approx. CNY 11.5/kg.
approx. CNY 7.5-13.85/kg.
approx. CNY 10-15/kg.
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 UP, you need a modified compound. Ningbo Kolong New Materials is developing high-performance modified UP solutions covering glass-fiber reinforcement, flame retardancy, weatherability and conductivity. Message us for a modified UP 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; UP 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.