MS副牌，别再把它当便宜亚克力——这三家国外大厂才是正主

做透明展示器材的圈子里，很多采购有个根深蒂固的念头：要透明、要轻、要便宜，那不就是买亚克力么？MS和PMMA看着差不多，挑便宜的上就行。

然后一年下来，账单一拉：灯箱片半年就发黄发乌，展示架在仓库里放俩月就翘，透明展板夏天鼓成了波浪。采购拿着发票纳闷——料买得够便宜啊，怎么件件都在返工？

本质上，他不是在买材料，是在买运气。MS这东西，比PMMA轻、吸湿低、好成型，价格还低一截，但它和PMMA根本不是同一档脾气。你拿选亚克力的思路去挑MS，挑中的常常不是便宜，是后患。

这篇就把MS副牌这事掰开：MS到底是什么、全球谁在做、副牌从哪来、哪三家国外大厂值得你去盯。看完再下单，至少心里有底。

MS是什么，全球透明树脂里的隐形选手

MS，学名甲基丙烯酸甲酯-苯乙烯共聚物（MMA-styrene），行内叫MS树脂，部分SMMA口径也把它算进来。它一头是PMMA的透明和光学感，一头又比PMMA轻、吸湿低、成型好。做导光、做展示、做透明日用品，它是个“比上不足、比下有余”的透明料。

全球MS这盘子不大，但技术门槛不低，真正能打的国外玩家集中在几家。按行业研报与企业公开资料（2026年口径）：

1. 电化 DENKA（日本，原日本制铁化学MS业务并入）：TX Polymer系列，连续本体聚合技术，光学级MS头部玩家；

2. 奇美实业（中国台湾）：ACRYSTEX® MS（SMMA），透明、低吸湿，光学与展示应用见长；

3. LG化学（韩国）：MS/苯乙烯系透明树脂梯队玩家，供应亚洲光学与展示市场。

MS是个典型的“小而精”品类，量不大但光学、尺寸稳定的要求高。这三家之外，能稳供货的并不多，所以副牌来源基本也绕不开它们。

MS副牌从哪来，和回料差在哪

副牌的逻辑不复杂。同一套聚合装置、同一批聚合产物，出厂检验全指标达标的贴正牌标；个别指标——雾度、透光、黄度、熔指——小幅没踩线的，就是副牌。它是原厂原生粒子，分子结构和正牌一致，不是废料回炉。

MS副牌的四个来源，和其他苯乙烯系一个道理：开停车头尾料、切牌号过渡料、工艺波动导致单项指标小幅超标的批次、副线尾料。MS因为主打透明，副牌身上常见的问题就是雾度略升、色相略黄、透光差一点——偏偏这些恰恰是做展示、做灯箱格外敏感的指标。

把边界划清楚：正牌全指标稳；副牌基材同正牌、个别指标小幅浮动；回料是加工边角料再造粒，受过一次热历史；再生料是废塑料回收，波动大。MS做透明展示，就怕的是把再生料当成副牌上机，一片展板雾过去，一整批活动物料全废。包装上，认准大包装、小包装即可。

电化DENKA的TX Polymer：光学级的老大哥

先看电化DENKA。这家百年化工，MS走的是TX Polymer路线，招牌牌号像TX-100S、TX-400S，连续本体聚合做出来的透明性、光学感接近亚克力，但密度更低、吸湿更小、成型性更好。做LED灯罩、导光板、透明透镜、化妆品外壳，它都兜得住。

电化TX的副牌，多为黄度或熔指小幅偏离的批次。它的底子是光学级的，拿来做对透明要求中等、不做苛刻外观面的展示件、透明装饰件，性能余量很足。但要做导光、做光学镜头级的，还是得正牌。

奇美ACRYSTEX®：轻量透明的性价比派

再看奇美ACRYSTEX®。奇美把MMA和苯乙烯做成SMMA/MS路线，主打透明、耐候、低吸湿，比重还轻，做电子面板、食品接触件、玩具和展示件都在用。它的卖点一句话：用比PMMA低一档的成本，拿到八九成的透明观感。

奇美MS副牌的特点是货源相对好找、价格亲民，适合批量走量的透明展示器材、文具和日用品。它的副牌适合用在非主展示面、内构件、配色件上，做正面主视觉展板的，还是那句话，别硬省。

LG化学：梯队里的稳定供货派

再看LG化学。作为苯乙烯系一体化大厂，LG的MS/透明树脂梯队产品，主要供亚洲光学和展示市场。它的优势不在某一个招牌牌号，而在体系完整、供货稳定、批次一致性好。

LG这类大厂副牌，适合那些对透明度要求不算苛刻、但要求量产稳定、不想频繁换料的展示器材厂。它的副牌通常色相、熔指小幅浮动，做一般透明展示架、灯箱内衬、包装透明件，是够用的。

买MS副牌，这几个坑别踩

MS副牌怎么选？先认光学指标。MS主打的就是透明，副牌进厂，雾度、透光率、黄度指数三项必测，测完再谈价格。别一上来就比价，比到末了你比掉的是良率。

坑一，把PMMA回料当MS副牌。外观像透明粒，但脆、吸湿大，做展示架夏天就翘。坑二，牌号熔指对不上你的壁厚，薄壁灯片充不满，厚壁展示架应力大、容易裂。坑三，冬天户外用没做耐候，几个月就黄变。

还有一点：MS和别的透明料熔融态下相容性一般，掺错料会分层发雾。副牌混用批次时，务必小试开机，别一整柜直接倒进去。

科隆仓库现货｜MS三家

主推品牌：电化DENKA、奇美、LG化学

主要牌号：TX Polymer、ACRYSTEX、LG MS

包装规格：大包装、小包装均有现货

仓库现货通常在2000-5000吨：小包副牌备货300-600吨、箱装副牌备货150-300吨、大包料/吨包料备货1500-4100吨

供应保障：批次留样可溯

MS副牌选型口诀

给你一套能直接用的：

1. 光学级、导光、正面主展示面——正牌别省；

2. 内构件、配色件、非主视觉透明件——副牌可用；

3. 进厂先测雾度、透光、黄度，三项过关再签；

4. 认厂：TX、ACRYSTEX、LG，原厂原包才踏实；

5. 户外、灯箱长期受晒——做耐候或换ASA；

6. 怕翘曲、怕吸湿——副牌批次先小试；

7. 价格低得离谱的“透明副牌”——多半是回料，别碰。

中山有家做广告展示器材的厂，灯箱片、透明展板、促销立架做得不少。之前为压成本，进了一柜号称“透明MS副牌”，结果客户那边活动布展，展板放室外一周就黄得发乌、翘得变形，现场返工，单批物料直接报废了两万多块。后来我们帮它换了电化TX-100S和奇美ACRYSTEX的精选副牌，主展示面仍走正牌，副牌只用在内构和非主视觉件，黄变和翘曲的客诉率从14%降到0.5%。

这笔账不复杂：展示器材拼的就是现场观感，透明件一发黄、一翘边，再好的设计也白搭。宁波市科隆新材料有限公司做进口大厂副牌多年，类似“省了料钱、赔了物料”的事见得太多，帮客户把副牌摆对位置，本来就是这份生意的本分。

做广告展示的、做灯箱的、做透明展架的，谁没被透明料坑过？是展板半年发黄？还是立架放仓库就翘？或者灯片一上墙就雾得看不清？

资料与数据来源

· 电化DENKA 官网 TX Polymer（MS）产品资料

· 奇美 ACRYSTEX® MS（SMMA）产品资料

· Chemical Research Insight《Top 10 Companies in the MS Resin (SMMA) Market 2026》

· PW Consulting《Worldwide Optical Grade MS Resins Market 2026》

· 行业公开资料综合整理（核验日期2026-09-14）

In the transparent display equipment community, many buyers have a deeply rooted belief: they want transparency, lightness, and affordability—so that's just buying acrylic. MS and PMMA look similar, so just pick the cheaper one.

Then, after a year, the bill goes yellowed and blackened in half a year, display racks curl after two months in warehouse, and transparent display panels swell into waves in summer. Buyers holding invoices wonder—the materials are cheap enough, so why does every single item have to be reworked?

Essentially, they're not buying materials, they're buying luck. MS is lighter, less absorbent, easier to mold, and priced lower than PMMA, but it's nowhere near the same level as PMMA. If you use the acrylic selection approach to choose MS, the ones you pick are often not cheap, but have trouble.

This article breaks down the MS sub-brand: what exactly is MS, who worldwide is making it, where the sub-brands come from, and which three major foreign companies are worth your attention. Read before placing an order, at least you have a clear idea. What is

MS? The invisible player in the global transparent resin

MS, generic name methyl methacrylate-styrene copolymer (MMA-styrene), known in the industry as MS resin, and some SMMA calibers include it. It has PMMA's transparency and optical feel on one end, and lighter, less moisture-absorbing, and better molding than PMMA. For light guides, displays, and transparent daily necessities, it is a transparent material that is "not as good as the best, but better than the low ."

The global MS market is not large, but the technical threshold is high, with only a few foreign players truly competing. By industry research reports and public company information (2026 caliber):

1. Denka (Japan, merged from the former Nippon Tetsu Chemical's MS business): TX Polymer series, continuous bulk polymerization technology, leading player in optical-grade MS;

2. Chimei Industrial (Taiwan): ACRYSTEX® MS (SMMA), transparent, low moisture absorption, excels in optical and display applications;

3. LG Chem (South Korea): MS/styrene-based transparent resin tier player, supplying the Asian optics and display market.

MS is a typical "small but refined" category, with small quantities but high requirements for optical and dimensional stability. Outside of these three, few can reliably supply sub-brands, so sub-brands basically rely on them. Where do

MS sub-brands come from, and where is the difference from recycled materials

Sub-brand's logic is not complicated. The same polymerization device and batch of polymerization products that meet all factory inspection standards are labeled as genuine brand; Individual indicators — haze, light transmittance, yellowness, melt index — slightly missing the line are secondary brands. They are original factory native particles with molecular structure identical to genuine ones, not recycled waste.

MS four sources of secondary brands, similar to other styrene types: starting and parking scraps, switching plates, batches with slight exceedances caused by process fluctuations, and secondary line scraps. MS focuses on transparency, so common issues with secondary plates are slightly increased haze, slightly yellowish hue, and poor light transmission—these are precisely the most sensitive indicators for display and lightbox use.

Draw clear boundaries: all indicators for genuine cards are stable; Secondary brand base material is the same as genuine brand, with some indicators fluctuating slightly; Reclaimed material is processed scraps and pelletized and has undergone a thermal history; Recycled material is recycled plastic and has large fluctuations. MS uses transparent display because recycled material is used as a secondary brand, causing a display board fog to pass and a batch of moving materials is completely wasted. For packaging, focus on large and small packages.

Denka TX Polymer: The optical-grade big brother

Let's first look at Denka Electrochemical. This century-old chemical company, MS, follows the TX Polymer route, with signature grades like TX-100S and TX-400S. The continuous bulk polymerization results in transparency and optical feel close to acrylic, but lower density, less moisture absorption, and better moldability. Whether it's LED lamp shades, light guide plates, transparent lenses, or cosmetic casings, it can handle it all.

Electrochemical TX's secondary brands mostly have batches with slight deviations in yellowness or melting index. Its foundation is optical-grade, suitable for display and transparent decorative parts that require moderate transparency and not require harsh appearances, with plenty of performance margin. But for light guides and optical lens quality, it still needs to be genuine.

Chimei ACRYSTEX®: Lightweight and transparent cost-performance enthusiast

Looking at Chimei ACRYSTEX®. Chimei has made MMA and styrene into the SMMA/MS route, focusing on transparency, weather resistance, low moisture absorption, and light density, used for electronic panels, food contact parts, toys, and display pieces. Its selling point is summed up: at a cost lower than PMMA, it achieves 80-90% transparency. The characteristics of the

Chimei MS sub-brand are relatively easy to find and affordable, suitable for bulk sales of transparent display equipment, stationery, and daily necessities. Its sub-brand is suitable for non-main display surfaces, internal components, and color-matched parts for front main visual display boards. As always, don't be forced to save money.

LG Chemical: Stable Supply in the Tier

Looking at LG Chem again. As a major integrated styrene-based manufacturer, LG's MS/transparent resin tier products mainly supply the Asian optical and display markets. Its advantage lies not in a single brand name, but in a complete system, stable supply, and good batch consistency.

LG these large manufacturers' sub-brands, they are suitable for display equipment manufacturers that do not require strict transparency but want stable mass production and do not want frequent material changes. Its secondary cards usually have slight fluctuations in hue and melting index, so it's sufficient for regular transparent display stands, light box linings, and transparent packaging parts.

When buying MS secondary cards, don't fall into these pitfalls How to choose a secondary brand

MS First, look at the optical specifications. MS mainly focuses on transparency. When secondary cards arrive at the factory, haze, light transmittance, and yellowness index must be tested. Only negotiate the price after testing. Don't start comparing prices right away; in the end, what you lose is yield.

Pitfall 1: Mistake PMMA recycled material for MS secondary cards. It looks like transparent granules but is brittle and highly absorbs moisture; when used as a display stand, it will warp in summer. Pitfall 2: The melting index of the brand does not match your wall thickness, thin-walled light strips cannot be fully filled, thick-walled display racks cause high stress and crack easily. Pitfall 3: If you don't use it outdoors in winter for weather resistance, it turns yellow after just a few months.

One more thing: MS has poor compatibility with other transparent materials in the molten state, and mixing the wrong material will cause layered fogging. When mixing sub-brand batches, be sure to test the machine and don't pour in a whole container directly.

Cologne Warehouse In Stock | MS Three Companies

Main Recommended Brands: Denka Electric, Chimei, LG Chem

Main Grades: TX Polymer, ACRYSTEX, LG MS

Packaging Specifications: Both large and small packages in stock

Warehouse Stock usually ranges from 2000 to 5000 tons: small sub-brand stock 300-600 tons, sub-brand containerized stock 150-300 tons, large package/ton package stock 1500-4100 tons

Supply Guarantee: Batch retained samples are traceable

MS Sub-brand selection formula

Gives you a ready-to-use set:

1. Optical grade, light guide, main front display surface—don't skip the genuine brand;

2. Internal components, color matching parts, non-main visual transparent parts—can be used with secondary brands;

3. Upon arrival, measure haze, light transmission, and yellowness; pass all three before signing;

4. Factory certification: TX, ACRYSTEX, LG, original factory packaging for peace of mind;

5. Outdoor or light boxes exposed to sunlight for long periods—do weather resistance or replace with ASA;

6. Fear warping and moisture absorption—test secondary batch first;

7. The ridiculously cheap "transparent secondary plates"—mostly recycled materials, don't touch them.

Zhongshan has a factory that makes advertising display equipment, producing many lightbox panels, transparent display boards, and promotional stands. Previously, to cut costs, they bought a cabinet claiming to be a "transparent MS secondary brand," but during the client's event setup, the display board turned yellow and warped after a week outside, requiring on-site rework, and a single batch of materials was scrapped directly for over 20,000 yuan. Later, we replaced the main display with the main display side as the genuine brand, only used for internal structures and non-main visual parts. Customer complaints about yellowing and warping dropped from 14% to 0.5%.

This account isn't complicated: the display equipment is all about the live experience. Once transparent parts turn yellow or curl the edges, no matter how good the design is, it's useless. Ningbo Kelong New Materials Co., Ltd. has been doing sub-brands for imported major factories for years, and has seen many cases where "saving on material costs but losing materials" happens too often. Helping clients position the sub-signs correctly is the business duty.

Who hasn't been tricked by transparent materials for advertising, displays, lightboxes, or transparent stands? Is it that the display boards turn yellow after half a year? Or do the stand-up racks curl up when placed in the warehouse? Or do the lighters fog up and become hard to see as soon as they are placed on the wall?

Information and Data Source

· Denka DENKA Official Website TX Polymer (MS) Product Information

· Chimei ACRYSTEX® MS (SMMA) Product Information