How to Read a Technical Data Sheet (TDS) for Synthetic Leather

Aug 28, 2026

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B2B Technical Document Guide

A synthetic leather TDS should be read as a map of material identity, dimensions, physical properties and test conditions-not as a list of marketing claims. Start by checking the exact SKU and construction, then separate controlled specification limits from typical values. Tear strength, elongation and colorfastness only become comparable when the test method, specimen condition, direction, unit and acceptance criterion are also defined.

Author: WINIW Technical review: WINIW Quality Control Last reviewed: August 2026
TDS Reading Order

Read a Synthetic Leather TDS in Four Passes

Do not start by looking for the largest abrasion number or the highest tear value. First make sure the document describes the same material construction you intend to buy.

01 / Identity

Check product code, material family, surface, backing, color, thickness and revision.

02 / Dimensions

Review nominal thickness, tolerance, usable width, basis weight and other controlled dimensions.

03 / Performance

Read tear, elongation, abrasion, flex, peel, colorfastness and application-specific properties.

04 / Test Conditions

Confirm method, specimen direction, conditioning, unit, endpoint and whether the value is typical or guaranteed.

Field Map

The TDS Fields a Synthetic Leather Buyer Should Check

Field What It Tells You What to Verify
Product / SKU Identifies the material construction covered by the document. Match product code, color, backing, thickness and revision to the sample you approved.
Thickness Indicates nominal material gauge. Check tolerance, measurement method and whether surface grain or compression affects the reading.
Usable Width Helps determine cutting layout and usable material area. Distinguish total roll width from minimum usable production width.
Tear Strength Shows resistance to propagation of an existing cut or tear under the stated method. Verify specimen geometry, direction, test speed, unit and minimum or typical value.
Elongation Shows how much the material extends under the specified tensile condition. Check direction, gauge length, test speed and whether the result is at break or at a specified load.
Color Fastness Indicates resistance to color change or transfer under a defined exposure. Identify dry rubbing, wet rubbing, perspiration, light or another test route; these are not interchangeable.
Peel / Adhesion Evaluates bond behavior between coating, film, backing or laminated layers. Confirm peel direction, specimen width, speed, conditioning and whether initial or aged data are shown.
Abrasion Describes surface wear under one specified abrasion method. Check Martindale, Taber, Wyzenbeek or other method, load, abradant, cycles and failure endpoint.
Flexing Indicates repeated-bending behavior. Check flex method, temperature, cycle count and the defined failure mode such as cracking or delamination.
Water Vapor Measures vapor transmission under a defined method. Confirm unit, temperature, humidity, specimen orientation and whether the complete laminate was tested.
Tear Strength

Tear Strength Is Meaningless Without the Test Method

Buyers often compare two TDS files by looking only at the number beside "tear strength." That can be misleading because different specimen shapes, directions and methods can produce different results.

A valid comparison should use the same method, specimen construction, direction, conditioning and unit. For footwear, bags and upholstery, also ask whether the tested construction matches the thickness and backing you intend to purchase.

  • Check warp, weft or machine/cross direction
  • Confirm the specimen geometry
  • Confirm the unit, usually force
  • Distinguish minimum limit from typical result
  • Match the tested sample to the proposed SKU
Tear and tensile strength testing machine for synthetic leather TDS verification
Elongation

Read Elongation Together with Tensile Behavior

Elongation is not simply a measure of whether synthetic leather is "flexible." It describes extension under a specified tensile test. High elongation can help some shaped or wrapped components, while too much extension may reduce dimensional stability in other applications.

Footwear Uppers

Review elongation with lasting, seam stability and recovery around curved upper panels.

Automotive Wrapping

Compare extension with contour forming, adhesive bonding and post-aging dimensional stability.

Bags & Structured Goods

Excess stretch may work against shape retention where a firmer silhouette is required.

Upholstery

Evaluate elongation together with seam strength, recovery and long-term seating deformation.

Color Fastness

"Grade 4–5" Is Incomplete Unless You Know Which Test Was Used

Color fastness can refer to several different exposures. A good dry rubbing result does not automatically prove wet rubbing, perspiration, light or migration performance.

Color Test Main Buyer Question Typical Risk
Dry Rubbing Does color transfer under dry mechanical contact? Transfer to light-colored adjacent components.
Wet Rubbing Does moisture increase color transfer? Footwear, gloves and frequently cleaned surfaces.
Perspiration Does sweat cause shade change or transfer? Shoe linings, gloves and body-contact products.
Light Fastness How does color change after controlled light exposure? Automotive, furniture and visible fashion surfaces.
Always read the method name, exposure condition and evaluation scale before comparing colorfastness grades from different suppliers.
Taber abrasion tester used to verify synthetic leather TDS wear data
Test Method Before Number

Do Not Compare Performance Numbers Across Different Methods

A common sourcing mistake is comparing a large cycle count from one test with a smaller cycle count from another. Martindale, Taber, Wyzenbeek and flexing tests use different mechanisms, specimens and endpoints.

The same rule applies to tear, peel, tensile, vapor transfer and weathering. A TDS number is useful only when the method and test conditions are sufficiently defined.

  • Method or standard number
  • Standard edition where relevant
  • Specimen construction and direction
  • Conditioning and environmental conditions
  • Load, speed, cycles or exposure duration
  • Pass/fail or visual endpoint
Typical vs Specification

Ask Whether Each TDS Value Is Typical, Minimum, Maximum or Controlled

One of the most important questions in a technical data sheet is often not the number itself, but what that number represents.

Typical Value

Describes representative performance but may not be a contractual batch-release limit.

Minimum / Maximum

Defines a directional limit only when the test method and acceptance basis are also agreed.

Nominal Value

Often used for dimensions such as thickness; a tolerance should accompany it where production control is required.

Pass / Fail

Useful for classification tests when the method clearly defines the acceptance criterion.

Internal Reference

Ask whether the number comes from internal development testing or an externally issued report.

Customer Specification

Buyer-defined limits should be agreed separately if they are stricter than the supplier's normal specification.

Sample & Test Scope

Check Whether the Test Result Covers Your Exact Construction

Synthetic leather properties can change with thickness, backing, coating chemistry, color, surface finish and lamination. A report for one sample should therefore not automatically be applied to another SKU.

Before approval, match the document to the physical sample and record the construction used for testing. If your final component adds foam, lining, adhesive or another layer, repeat any tests that can be affected by the composite.

  • Product or SKU reference
  • Color and surface finish
  • Thickness and backing
  • Lamination or secondary processing
  • Test date and report scope
  • Applicable production batch where required
Laboratory technician preparing synthetic leather samples for TDS and quality testing
Document Hierarchy

A TDS, Test Report, Inspection Record and COA Are Different Documents

We recommend requesting the document that matches the actual sourcing decision. A TDS is useful for material selection, but it is not always evidence of the result for a specific production batch.

TDS

Product-level construction and typical or specification information used during material selection.

Test Report

Records a named sample, method, condition, date and test result.

Inspection Record

Records checks made during incoming, in-process or final inspection against an agreed basis.

COA / COC

Batch- or shipment-related evidence only when the required fields have been agreed and are available.

Red Flags

Five TDS Red Flags Buyers Should Question Before Ordering

No Test Method

A performance number without the method cannot be compared reliably with another supplier's value.

No Unit

Force, pressure, vapor transfer and peel data require clearly stated units.

No Sample Identity

Ask whether the tested construction matches the material, thickness, backing and finish being offered.

Universal Claims

Words such as waterproof, non-toxic or wear-proof require a defined scope and evidence.

No Revision Date

Technical documents should be checked against the current material and current purchasing requirement.

Typical = Guaranteed

Do not assume a representative development value is automatically a contractual batch-release limit.

RFQ Checklist

Turn the TDS into a Purchase Specification

Once you identify the important fields, convert them into the RFQ or quality agreement. This prevents a supplier from quoting a material that looks similar but has a different backing, test method or performance level.

  • Application and finished-product component
  • Material family and preferred construction
  • Thickness, tolerance and usable width
  • Color, grain and physical reference
  • Critical test method and acceptance limit
  • Required report or batch document
  • Trial quantity and annual volume
  • Destination market and project schedule

Need Help Reviewing a Synthetic Leather TDS?

Send us the application, material reference, thickness, backing, critical test methods and target market. We can help compare the available TDS, sample and supporting test information before you move to bulk evaluation.

Request TDS & Material Review
Buyer FAQ

Technical Data Sheet Questions from Synthetic Leather Buyers

What is the most important thing to check first on a TDS? +

Confirm that the TDS describes the exact material you are evaluating. Match the product code, construction, thickness, backing, surface and revision before comparing performance numbers.

Is a higher tear-strength number always better? +

Not necessarily. Results should first be compared using the same test method, specimen geometry, direction, conditioning and unit. The required level also depends on the finished product and component.

What does "typical value" mean on a synthetic leather TDS? +

A typical value generally describes representative performance rather than an automatic contractual limit. If the property is critical, agree a controlled minimum, maximum or acceptance requirement separately.

Can a TDS replace a third-party test report? +

No. A TDS and a test report serve different purposes. A test report records a named sample, method, conditions, date and result, while a TDS describes product-level technical information.

Why can two suppliers show different abrasion cycle numbers? +

They may be using different abrasion methods, loads, abradants, specimen constructions or failure endpoints. Compare cycle numbers only when the test conditions are equivalent.

What should we send when requesting a TDS from WINIW? +

Please provide the application, component, material or sample reference, thickness, backing, color, critical performance methods, destination market, trial quantity, annual volume and project schedule.

 
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