物性表印得漂亮，一测条件对不上。数据谁都会印，实测才算数。
表印得漂亮测不对，条件没人看
TPE 物性表是“参考书”：典型值、测试条件。结论先给：都会印，实测才算数，重点看耐温——实测，是物性的准星。
TPE物性表最大的坑：表上数字谁都能印，上机一测才见真章——实测，是物性的照妖镜。
物性表是采购工具：会看表，不被忽悠。不会看，踩坑——物性表，是采购的入门课。
数据是选型依据，为什么看条件
物性表是典型值：不是底线。典型值，是参考。
测试条件要看：温度、速度、样条。条件不同，数据不同——条件，是数据的背景。
重点看耐温：连续耐温、短期峰值。耐温，是选型的关键。
条件、数值、实测，表怎么读
条件：测试条件先看。条件不对，数据白看——条件，是头一关。
数值：典型值看范围。范围，是参考。
实测：小批实测对表。实测对表，才敢用——实测，是第三关。
物性表要素，一张表对照清楚
| 项目 | 看什么 | 判断 |
|---|
| 硬度 | 标尺 | 必看 |
| 耐温 | 连续值 | 必看 |
| 回弹 | 数值 | 必看 |
| 条件 | 标准 | 必看 |
表格读法：要素逐项看，一样不落，耐温那一行先盯测试条件。
条件先看，数据才对。
数据对得上货，核验核这四项
| 项目 | 要求 | 判断 |
|---|
| 条件 | 看清 | 达标 |
| 耐温 | 重点 | 达标 |
| 实测 | 对表 | 达标 |
| 批次 | 锁定 | 达标 |
表格读法：物性一项项核，真假看得见，熔点和耐温分开看。
实测，是物性的准星。
只看数值不看条件，照单选型就踩坑
坑一：只看数值。都会印，实测才算数——条件必看。
坑二：不实测。白看——实测必做。
坑三：耐温漏看。选错——耐温必看。
测试条件、数值、复测——看表先问
三问：什么条件、什么耐温、什么实测。一验：小批实测对表——三问一验，供应商底细清楚。
实测验证要先行：先把耐温和熔指按自己工况复测一遍，再谈选型——实测，是物性的照妖镜。
留样要成习惯：每批留样，物性按批次复测。批次换料先对比再放量——批次稳，客诉少。
虚标、对不上货、跳值：对照一张表
| 现象 | 原因 | 对策 |
|---|
| 被忽悠 | 只看表 | 看条件 |
| 选错料 | 耐温漏看 | 看耐温 |
| 数据虚 | 不实测 | 实测对表 |
| 批次漂 | 表过期 | 锁批次 |
| 客诉 | 表不准 | 实测核 |
物性表印得再漂亮，不标测试条件等于没印。同一条 Shore A 70，2mm 和 6mm 试片读出来能差 5 度。
看表先找三个数：耐温、压变、硬度波动。压变 >30%（70℃×22h）的料，别拿去做长期受压的密封件。
SEBS 基软糯、TPU 弹韧，表上同是 70A，手感和回弹两码事。只对数字不对手感，试模必翻车。
拿到 TDS 先对编号和批次。报告能查到机构、追到批次，才是真报告；查不到的，等于一张白纸。
TDS 上“耐温 100℃”是短时峰值，不是长期服役温度。照着峰值选料，夏天出模放俩月就发黄、发黏。
看TDS先找测试条件：试片厚度、温度、时间。同一条Shore A 70，2mm和6mm试片差5度，压变标70℃×22h才作数，不标条件等于没印。
报告编号官网可查追到批次才是真报告。机构、编号、日期三项对上，查不到的等于白纸，配方一改报告就要更新，别拿两年前报告走新单。
TDS上耐温100℃是短时峰值不是长期服役温度。照着峰值选料夏天出模放俩月就发黄发黏，长期服役温度比峰值低20℃才稳。
拿到TDS先对编号和批次，报告能查到机构追到批次才是真报告
。查不到的等于一张白纸，SEBS基软糯TPU弹韧表上同是70A手感和回弹两码事只对数字不对手感试模必翻车。
同一条Shore A 70 2mm和6mm试片读出来能差5度
。压变超30%（70℃×22h）的料别拿去做长期受压的密封件，SEBS基软糯TPU弹韧表上同是70A手感和回弹两码事只对数字不对手感试模必翻车。
看TDS先找测试条件试片厚度温度时间。同一条Shore A 70 2mm和6mm试片差5度压变标70℃×22h才作数，报告编号官网可查追到批次才是真报告查不到的等于白纸。
压变超30%的料别拿去做长期受压密封件
。TDS上耐温100℃是短时峰值不是长期服役温度，报告编号官网可查追到批次才是真报告查不到等于白纸。
科隆客户案例：回弹不足不达标，跟产过气味验收
无锡一家改性料应用厂，TPE 件回弹不足，功能件性能不达标。科隆配合现场跟产调试到良率稳定，回弹恢复，气味等级通过客户验收标准。参数窗口锁死，回弹从源头稳——回弹问题，先看参数再看配方。
小结
TPE物性表的看法，条件先看，实测再核，都会印实测才算数重点看耐温，实测是准星。
我们交付的，不只是一包料。
The material property table looks nice, but the measurement conditions don't match. Anyone can print the data, but only actual measurements count.
The watch looks beautiful but doesn't measure correctly, and no one checks the conditions.
The TPE physical properties table is a 'reference book': typical values, test conditions. Here's the conclusion first: all of them will be printed, only actual measurements count, the focus is on heat resistance—actual measurements are the benchmark for physical properties.
The biggest pitfall of the TPE property table: anyone can print the numbers on the table, but the true picture only appears after actual machine testing — real measurements are the mirror that reveals the true nature of the material.
The physical properties table is a procurement tool: if you know how to read it, you won't be deceived. If you don't know how to read it, you'll fall into traps — the physical properties table is the beginner's course for procurement.
Data is the basis for selection, why look at conditions?
The physical property table shows typical values: not the lower limit. Typical values are for reference.
The testing conditions depend on: temperature, speed, and spline. Different conditions produce different data—conditions are the context of the data.
Focus on temperature resistance: continuous temperature resistance and short-term peak. Temperature resistance is the key to selection.
Conditions, values, measurements, how to read the table
Conditions: Check the test conditions first. If the conditions are not right, the data is useless—conditions are the first hurdle.
Numerical value: refer to the typical value for the range. The range is for reference.
Field Test: Small batch field test for calibration. Only after field testing the calibration would one dare to use it — field testing is the third step.
Material property table elements, one table clearly compared
| Project | What are you looking at? | Judgment |
|---|
| Hardness | Ruler | Must watch |
| Temperature resistant | Continuous value | Must watch |
| rebound | Numerical value | Must watch |
| Condition | standard | Must watch |
How to read the table: Look at each element one by one, without missing anything, and first focus on the test conditions in the temperature resistance row.
Check the conditions first, then the data will be correct.
The data matches the goods, verify these four items
| Project | Requirement | Judgment |
|---|
| Condition | See clearly | Meet the standard |
| Temperature resistant | Focus | Meet the standard |
| Actual measurement | Time synchronization | Meet the standard |
| Batch | Lock | Meet the standard |
How to read the table: Check the physical properties item by item, you can see if they are true or false, and look at the melting point and heat resistance separately.
Tested, it is the benchmark of physical properties.
Only looking at the numbers and not the conditions, following the specifications blindly will lead to pitfalls.
Pitfall 1: Only look at the numbers. Everyone can print them, only actual testing counts—always check the conditions.
Pitfall 2: Not actually testing. Just reading is useless — actual testing must be done.
Pitfall three: Overlooking temperature resistance. Wrong choice — always check temperature resistance.
Test conditions, values, retesting — look at the table and ask first
Three questions: what conditions, what temperature resistance, what actual measurements. One test: small batch actual measurement comparison — three questions and one test, the supplier's background is clear.
Practical testing and verification must come first: first, re-test the heat resistance and melt flow index according to your own working conditions, and then discuss selection—practical testing is the truth-revealing mirror of material properties.
Making sample retention a habit: retain samples for each batch, and re-test the physical properties by batch. Before switching materials between batches, compare them before scaling up — stable batches lead to fewer customer complaints.
False labeling, goods not matching, value jumps: compare with a table
| Phenomenon | Reason | Countermeasure |
|---|
| Being fooled | Only look at the clock | Depends on the conditions |
| Selected the wrong material | Overlooked temperature resistance | Check temperature resistance |
| Data is false | Not measured | Actual Test Against the Standard |
| Batch bleaching | Form expired | Lock batch |
| Customer complaint | The meter is inaccurate | Measured core |
No matter how beautifully the material property table is printed, not specifying the test conditions is equivalent to not printing it at all. For the same Shore A 70, readings from 2mm and 6mm samples can differ by 5 degrees.
First, look for three numbers on the datasheet: temperature resistance, compression set, and hardness fluctuation. Do not use materials with a compression set over 30% (70℃×22h) for seals that will be under long-term pressure.
SEBS feels soft and sticky, TPU is elastic and tough; even though both are 70A on the surface, the feel and rebound are two different things. Relying only on the numbers and ignoring the feel will definitely lead to failure when testing the mold.
First, check the numbers and batches when you get the TDS. A report is genuine only if you can trace the institution and the batch; if you can't, it's like a blank sheet of paper.
The 'temperature resistance 100℃' on the TDS refers to a short-term peak, not the long-term service temperature. If you choose materials based on the peak, the parts will turn yellow and sticky after being left in molds for a couple of months in summer.
To check the TDS, first look for the test conditions: specimen thickness, temperature, and time. For the same Shore A 70, a 2mm and 6mm specimen differ by 5 degrees. The compression set standard is only valid at 70°C × 22h; if conditions are not specified, it's as if it wasn't recorded.
The report number can be verified on the official website, and only when you can trace it to the batch is it a real report. The organization, number, and date must match; if it can't be verified, it's as good as a blank sheet. If the formula changes, the report must be updated, so don't use a report from two years ago for a new order.
The TDS shows a temperature resistance of 100°C, but that is a short-term peak, not the long-term service temperature. Choosing materials based on the peak could result in yellowing and stickiness if the product sits for a couple of months in the summer. The long-term service temperature should be about 20°C lower than the peak for stability.
First check the serial number and batch when you get the TDS; the report is only real if the institution can trace the batch from the report.
Being unable to find it is equivalent to a blank sheet of paper. On an SEBS-based soft and glutinous TPU elastic surface, although both have a 70A feel and rebound, the numbers correspond to different tactile sensations, and testing molds will inevitably fail if you only rely on the numbers.
The same Shore A 70 specimens of 2mm and 6mm can read a difference of 5 degrees.
Do not use materials with a compression set over 30% (70℃×22h) to make sealing parts that are under long-term pressure. On an SEBS-based soft and sticky TPU elastomer, even if the surface feels like 70A hardness and has rebound, the number alone does not match the actual feel; testing the mold will definitely go wrong if you rely only on the numbers.
To check TDS, first look for the testing conditions: specimen thickness, temperature, and time. For the same Shore A 70, the 2mm and 6mm specimens differ by 5 degrees; only a compression set of 70°C × 22h counts. The report number can be checked on the official website to trace the batch; that's the real report. If it can't be found, it's equivalent to blank paper.
Do not use materials with a compression change of over 30% to make long-term pressure seals.
The temperature resistance of 100°C on the TDS is a short-term peak value, not the long-term service temperature. The report number can be checked on the official website to trace the batch; that's the real report. If it cannot be checked, it's equivalent to a blank sheet.
Cologne Customer Case: Insufficient rebound not up to standard, followed by acceptance after odor testing
A modified material application factory in Wuxi had TPE parts with insufficient rebound, and the performance of functional parts did not meet standards. Cologne coordinated on-site production debugging until the yield stabilized, rebound recovered, and odor levels met the customer's acceptance criteria. The parameter window was locked, ensuring rebound stability from the source—when facing rebound issues, first check parameters, then the formulation.
Summary
Regarding TPE physical property tables, first look at the conditions, then verify with actual measurements; documented measurements are decisive, with a key focus on heat resistance, as actual measurements are the benchmark.
What we deliver is more than just a bag of material.
