TPE副牌像同批织料里手感软了半度的那匹，拉一拉、弯一弯，回弹和耐折跟正牌一个脾气。
十个握把九个软弹，背后都是它
随便抓十个日用品握把——牙刷柄、削皮刀手柄、电动工具包胶——九个摸起来软软弹弹、不打滑，背后站的都是同一类东西：TPE。可这东西一吨的价差，能从一万二拉到三万。
同样叫TPE，手感天差地别，有的握半年就发硬掉粉，有的越握越顺手。很多采购以为TPE就是“软塑料”，随便买。结果包胶粘不住、手感发黏、夏天出油冬天开裂。这篇把TPE的底裤扒干净。
TPE是个大类：先把TPR、TPU分清楚
TPE，热塑性弹性体，是个大类，不是一个具体牌号。它常温像橡胶那样软弹，加热又能像塑料那样注塑，不用硫化，边角料还能回收。日用品握把、软触感包胶、密封条、玩具、吸管头，全是它。
但TPE底下分好几支：苯乙烯类（SBC，SBS/SEBS）、烯烃类（TPO/TPV）、聚氨酯类（TPU）、聚酯类（TPEE）等等。日用品握把这一支，主力是苯乙烯类SBC——就是SBS和SEBS为骨架，配油、配聚苯乙烯做出来的TPE/TPR。
先把名词理顺：TPR很多时候就是苯乙烯类TPE的俗称，跟TPE是一家子；TPU则是聚氨酯弹性体，更硬更耐磨，不是一回事。别混。全球做苯乙烯类TPE的，国外头部就那么几家：美国Kraton（科腾）是SBC的鼻祖；中国台湾的台橡（TSRC）和李长荣（LCY）是亚洲主力。各家份额在SBS、SEBS不同子项里互有高低，我们按梯队讲。
副牌通识：盯住硬度、出油、包胶粘接
TPE副牌，逻辑不变。同一厂家同一牌号聚合，出厂检验硬度、粘度、或者外观某一项没完全踩线，就是副牌。来路四条：开停车头尾料、换牌号过渡料、工艺波动批次、副线尾料。
它还是原厂原生料，分子链跟正牌一致，只是某项小幅飘。和回收TPE不是一回事——回收料油份跑了、分子量降了，手感发硬、容易掉粉。边界表照旧：
| 类型 | 来源 | 品质 | 典型用途 |
|---|
| 正牌 | 原厂达标批次 | 全指标达标、批次稳定 | 高要求件、认证件 |
| 副牌 | 原厂未达标批次 | 个别指标小幅偏离，基材与正牌一致 | 一般件、配色件、内件 |
| 回料/水口料 | 加工边角料再造粒 | 已受过一次热历史 | 低要求制品 |
| 再生料 | 废旧塑料回收造粒 | 性能波动大 | 低端制品、填充 |
TPE副牌盯三件事：邵氏硬度、油份析出、包胶粘接性。这三项决定手感软不软、出不出油、粘不粘得住硬塑料。
科腾Kraton：SBC这个品类的开山鼻祖
第一家，美国科腾（Kraton）。科腾是SBC这个品类的开山鼻祖，Kraton G系列是SEBS、Kraton A系列是SBS，做高端软触感、医疗、汽车的厂认它。
它家的强项是分子量分布干净、耐老化、手感细腻。副牌料过来，一般是硬度或流动性小幅飘，但弹性体骨架是原厂的。做高端日用品握把、对耐老化有要求的件，科腾副牌省心。
台橡TSRC：亚洲走量的主力
第二家，中国台湾台橡（TSRC）。台橡是亚洲SBS/SEBS的主力大厂，产能大、牌号全，做日用品、鞋材、改性沥青的厂用得极多。
它的优势是性价比和供货稳，交期短。副牌料适合做走量的日用品握把、普通包胶件。挑它副牌，重点看硬度和出油对不对。
李长荣LCY：包胶粘接做得不错
第三家，中国台湾李长荣（LCY）。李长荣也是SBC主力，SBS/SEBS牌号齐全，在握把、密封、改性方向用得多。
它的特点是批次稳定、包胶粘接性做得不错。副牌料适合做对粘接有要求的软硬共挤件。选它副牌，试一下跟你的硬塑料基材粘不粘。
避坑：别拿TPE冒充TPU，也别忽略出油
TPE副牌怎么挑？第一，先分清你要哪一类。握把包胶用苯乙烯类SBC；要更耐磨用TPU；要耐油用别的。拿错家族全白搭。
第二，盯邵氏硬度。软度不对，握把手感就不对。第三，看出油。便宜TPE油份多，夏天握把黏手、放久了表面出油印。副牌也要测老化后出油。
第四，测包胶粘接。TPE软胶粘硬塑料，粘不住就脱层。第五，认厂。科腾、台橡、李长荣这三家副牌是原厂料。第六，包装问大包装、小包装。大包装走量量产，小包装打样调色。
科隆仓库现货｜TPE小样
主推品牌：科腾、台橡、李长荣
主要牌号：Kraton G/A系列、SBS/SEBS牌号、SBS/SEBS牌号
包装规格：大包装/小包装均有备货
仓库现货通常在5000吨左右
小包副牌备货800-1000吨、箱装副牌备货300-500吨、大包料/吨包料备货3500-3900吨
供应保障：先测后签
选型口诀 + 一个济南厨具握把厂的案子
口诀：
1. 日用品握把软触感——苯乙烯类TPE（SBC）；
2. 要更耐磨——TPU，别拿TPE硬顶；
3. 高端耐老化——科腾Kraton；
4. 走量性价比——台橡TSRC；
5. 包胶粘接——李长荣LCY；
6. 进厂测硬度、看出油、试包胶；
7. 量产选大包装，打样选小包装。
济南有家做日用厨具握把的客户，之前用了低价TPE包胶，夏天一热握把黏手、放俩月表面出油印，客户投诉退货率到了7%。后来换成台橡同牌号副牌，硬度和出油进厂先测后签，包胶粘接试好，黏手出油问题基本消失，退货率降到0.6%，良率回到九成五。
材料一吨贵了几百块，光客诉就少了一大半。这就是选型的价值——握把手感这东西，客户一握就知道好坏。宁波市科隆新材料有限公司常年做进口大厂副牌，日用品、软触感方向的案子经手不少，说白了就是帮你把“黏不黏手、粘不粘得住”这件事，量产之前试明白。
TPE sub-brand is like the fabric in the same batch that feels half a degree softer—pull and bend, and its resilience and fold resistance are just like the genuine brand.
Ten handles, nine soft springs, all backed by it
Randomly grab ten daily necessity handles—toothbrush handles, peeler handles, power tool rubber-clad handles—nine feel soft and springy and don't slip, all backed by the same type: TPE. But the price difference per ton of this thing can go from 12,000 to 30,000.
Both called TPE, the feel is worlds apart—some harden and lose powder after half a year, others get more comfortable the more you hold them. Many buyers think TPE is just "soft plastic" and buy it casually. As a result, the rubber doesn't stick properly, feels sticky to the touch, gets oily in summer, cracks in winter. This article strips TPE underwear clean.
TPE is a big category: first distinguish TPR and TP
TPE U , thermoplastic elastomers, which are a big category, not a specific grade. At room temperature, they are soft and elastic like rubber, can be injection molded like plastic when heated, no vulcanization needed, and scraps can be recycled. Daily necessities like handles, soft-touch rubber coatings, sealing strips, toys, straw heads—all are made of this.
But TPE is divided into several types: styrene (SBC, SBS/SEBS), olefins (TPO/TPV), polyurethane (TPU), polyester (TPEE), and so on. For daily necessities grips, the main focus is styrene SBC—TPE/TPR made from SBS and SEBS as the backbone, blended with oil and polystyrene.
Let's clarify the term: TPR is often the common term for styrene TPE, which is the same as TPE; TPU is polyurethane elastomer, harder and more wear-resistant, not the same thing. Don't mix it up. Globally, there are only a handful of leading foreign companies making styrene TPE: Kraton (USA) is the originator of SBC; Taiwan's TSRC and LCY are the main players in Asia. Each company has different market shares in different SBS and SEBS sub-products; let's discuss them by tier.
Sub-brand Knowledge: Focus on hardness, oil-extraction, and adhesive bonding
TPE sub-brand—the logic remains unchanged. If the same manufacturer and same grade are aggregated and any hardness, viscosity, or appearance inspection doesn't fully meet the line, that's sub-brand. There are four sources: starting and stopping the tail scrap, switching grades transitional material, process fluctuation batches, and auxiliary line scrap material.
It's still original raw material, with molecular chains consistent with the genuine brand, just a slight flutter. It's not the same as recycled TPE—recycled material loses oil content, molecular weight drops, feels hard, and easily sheds powder. Boundary table remains as before:
| Type | Source | Quality | Typical Use |
|---|
| Genuine Brand | Original Factory Standard Batch | Full Indicator Compliant, Batch Stable | High Requirements, Certified Parts |
| Subbrand | Original factory substandard batch | slight deviations in certain indicators, substrate consistent with genuine brand | General parts, color-matched parts, internal parts |
| Reused/sprue material | Processed scraps repelled and granulated | Already experienced once heat history | Low requirements products |
| Regenerated material | Recycled plastic pelletizing | High performance fluctuation | Low-end products, filling |
TPE sub-brand—focus on three things: Shore hardness, oil release, and overmolding adhesion. These three factors determine whether the hand feel is soft, whether it releases oil, and whether it can stick to hard plastics.
Kraton: The pioneer of the SBC category .
The first company, Kraton (USA). Kraton is the pioneer of the SBC category. Kraton G series is SEBS, Kraton A series is SBS, and manufacturers specializing in high-end soft touch, medical, and automotive industries recognize it.
Their strengths are clean molecular weight distribution, aging resistance, and delicate feel. When sub-brand materials arrive, hardness or fluidity usually fluctuates slightly, but the elastomer frame is original. For high-end daily necessities grips and parts requiring aging resistance, Keten's secondary brand is worry-free.
TSRC: The main volume seller in Asia
The second company, Taiwan Rubber Corporation (TSRC). TSRC is a major SBS/SEBS manufacturer in Asia, with large capacity and a full range of grades, widely used by factories producing daily necessities, footwear materials, and modified asphalt.
Its advantages are cost-effectiveness, stable supply, and short lead times. Its sub-brand material is suitable for high-volume daily necessities grips and ordinary rubber-coated parts. When choosing its sub-brand, focus on hardness and oil production.
Li Changrong LCY: Adhesive bonding is well done
Third company, Li Changrong (LCY) from Taiwan, China. Li Changrong is also a main SBC manufacturer, with a full range of SBS/SEBS grades, widely used in handles, sealing, and modification.
Its features are batch stability and good adhesive bonding. The secondary grade material is suitable for soft and hard co-extruded parts that require strong bonding. Choose this secondary brand and see if it sticks well with your hard plastic substrate.
Avoid pitfalls: Don't use TPE to pass off as TPU, and don't overlook oily
TPE how to choose a secondary brand? First, distinguish which type you want. Use styrene-based SBC for handle rubber; TPU for more wear-resistant; Use something else if you want oil resistance. Choosing the wrong family is a waste.
Second, focus on Shaw hardness. If the softness is wrong, the handle feels off. Third, check for oiliness. Cheap TPE contains a lot of oil; in summer, the handle sticks to your hand and surface shows ink marks after prolonged storage. For secondary brands, test for oil release after aging.
Fourth, test the adhesive bonding. TPE soft rubber adheres hard plastics; if it can't stick properly, delamination occurs. Fifth, identify the manufacturer. Keteng, Taixiang, and Li Changrong are sub-brands made from original factory materials. Sixth, ask about packaging for large and small packages. Large packages are mass-produced for mass production, small packages are sampled and color-adjusted.
Cologne Warehouse In-stock | TPE samples
Main brands: Keteng, Taiwan Rubber Products, Li Changrong
Main grades: Kraton G/A series, SBS/SEBS grade, SBS/SEBS grade
Packaging specifications: Both large and small packages are in stock
warehouse stock is usually around 5000 tons
Small packet sub-brand stock 800-1000 tons, containerized sub-brand stock 300-500 tons, large package/ton package material stock stock 3500-3900 tons
Supply guarantee: test before signing
Selection formula + a case from Jinan kitchenware handle factory
Mnemonic:
1. Soft touch of daily necessities handles—styrene-based TPE (SBC);
2. More wear-resistant—TPU, don't use TPE hard tops;
3. High-end aging resistance—Keteng Kraton;
4. Volume and cost-effectiveness—TSRC;
5. Overmolding bonding—Li Changrong LCY;
6. On-site hardness testing, oil detection, and overmolding tests;
7. For mass production, choose large packaging; for samples, choose small packaging.
Jinan, a customer making daily kitchenware handles, previously used low-priced TPE overmolding. In summer, the handle became sticky to your hand and surface showed ink marks after two months of heat, resulting in a 7% return rate for customer complaints. Later, I switched to the same sub-brand of Taiwan Rubber Plastics. Hardness and oil production were tested before being signed upon delivery. After gluing and bonding, the sticky and oily issues basically disappeared, the return rate dropped to 0.6%, and the yield rate returned to 95%.
A ton of material costs a few hundred yuan more, and just complaints from customers are reduced by more than half. This is the value of choosing the right type — the feel of the handle is something the customer can tell immediately. Ningbo Kelon New Materials Co., Ltd. has been making secondary brands of imported major manufacturers for years, handling many cases in daily necessities and soft-touch products. To put it simply, they help you figure out whether something is sticky or doesn't stick before mass production.
