TDS, SDS and COA for Road Marking Materials: What Is the Difference?
Buyers of road marking materials often request a TDS, SDS and COA before placing an order. These documents are related to the same product, but they serve different purposes.
A Technical Data Sheet explains how the product is designed to perform and how it should normally be used. A Safety Data Sheet provides information about hazards, handling and emergency measures. A Certificate of Analysis reports selected inspection results for a particular production batch.
Understanding the difference helps importers, contractors and project managers request the correct documents.
What Is a TDS?
TDS stands for Technical Data Sheet.
It provides technical and application information about a product. The exact content depends on whether the product is thermoplastic paint, MMA material, acrylic traffic paint, primer or glass beads.
A TDS may include:
Product description
Intended use
Available colors
Physical form
Recommended application method
Mixing ratio
Application temperature
Film thickness
Drying or curing time
Theoretical consumption
Surface-preparation requirements
Primer recommendation
Packaging
Storage conditions
Shelf life
The TDS helps buyers and contractors understand whether the product may be suitable for a particular application.
Is a TDS a Test Report?
No. A TDS is not normally the same as an independent laboratory test report.
The values in a TDS may be:
Typical product properties
Recommended application ranges
Manufacturer specifications
General technical guidance
A test report usually identifies:
Tested sample
Test method
Laboratory
Test date
Individual result
Standard or requirement
Buyers should not assume that every value in a TDS has been verified by an external laboratory.
If the project requires third-party evidence, the applicable test report should be requested separately.
What Is an SDS?
SDS stands for Safety Data Sheet.
The SDS communicates information related to product hazards, safe handling, storage, transportation considerations and emergency response.
It is especially important for liquid paints, primers, solvents and reactive two-component materials.
A standard SDS commonly contains sections covering:
Product and company identification
Hazard identification
Composition or ingredient information
First-aid measures
Firefighting measures
Accidental-release measures
Handling and storage
Exposure controls and personal protection
Physical and chemical properties
Stability and reactivity
Toxicological information
Ecological information
Disposal considerations
Transport information
Regulatory information
Other information
The exact content and legal requirements may vary by market.
Why Is the SDS Important?
The SDS helps several parties manage the product safely, including:
Importers
Freight forwarders
Shipping companies
Warehouse operators
Contractors
Safety managers
Emergency personnel
It may be reviewed when planning:
Transportation
Customs clearance
Warehouse storage
Worker protection
Spill response
Fire protection
Waste disposal
The SDS should correspond to the actual product formulation and market requirements.
Does Every Road Marking Product Need an SDS?
Requirements depend on the product, classification and applicable regulations.
Liquid road marking paint and reactive MMA materials usually require careful safety documentation.
Thermoplastic powder and road marking glass beads may have different classifications, but buyers or carriers may still request safety information for transportation and workplace management.
The supplier should provide documentation appropriate to the actual product rather than reusing an unrelated SDS.
SDS Documents for Two-Component MMA Paint
For a two-component MMA system, Components A and B may have different compositions and safety information.
The buyer should therefore confirm whether separate documents are required:
SDS for Component A
SDS for Component B
One combined document may not correctly describe the hazards and handling requirements of both components.
The package labels, product names and SDS titles should match so the materials can be identified during shipping and use.
What Is a COA?
COA stands for Certificate of Analysis.
A COA normally reports selected quality-control results for a specific production batch.
It may include:
Product name
Product code
Color
Batch number
Production date
Tested items
Specification limits
Actual results
Inspection conclusion
Authorized signature or approval
The exact inspection items depend on the product and agreed specification.
How Is a COA Different from a TDS?
The TDS describes the product in general. The COA relates to a particular batch.
For example:
TDS: recommended thermoplastic application temperature
COA: selected test results for the manufactured batch
TDS: general MMA mixing ratio and curing guidance
COA: batch identification and inspected properties
TDS: typical glass bead grading
COA: measured grading for the supplied batch when tested
A TDS may remain valid across multiple production batches, while each COA should identify the relevant batch.
Is a COA the Same as a Certificate of Conformity?
Not always.
A Certificate of Analysis reports test or inspection results. A Certificate of Conformity generally states that the product conforms to a named specification, standard or order requirement.
Some suppliers or markets may use the terms differently. Buyers should check the actual content instead of relying only on the document title.
If a project requires a particular certificate format, the buyer should provide the template or document requirement before production.
Is a COA the Same as a Third-Party Test Report?
No.
A manufacturer’s COA is normally based on internal factory quality control. A third-party test report is issued by an independent laboratory or inspection organization.
A third-party report may include:
Laboratory name
Accreditation information
Sample identification
Test method
Test equipment
Test date
Detailed results
Authorized laboratory signature
A manufacturer’s COA and a third-party report can both be useful, but they are not interchangeable when the tender requires independent testing.
Documents for Thermoplastic Road Marking Paint
For thermoplastic road marking paint, buyers may request:
Technical Data Sheet
Safety Data Sheet when required
Certificate of Analysis
Available test reports
Product specification
Application instructions
Color information
Packaging details
The TDS may include information about:
Softening point
Application temperature
Film thickness
Drying behavior
Theoretical consumption
Internal glass bead content
Surface preparation
Storage
The COA should report the inspection items agreed for the relevant batch.
Documents for Acrylic Traffic Paint
For solvent-based or waterborne acrylic road marking paint, documentation may include:
Technical Data Sheet
Safety Data Sheet
Certificate of Analysis
Available test reports
Application instructions
Color information
The TDS may cover:
Application method
Recommended film thickness
Drying time
Surface preparation
Thinning instructions when applicable
Glass bead application
Storage
Shelf life
The SDS provides the safety information needed for the actual formulation.
Documents for MMA Road Marking Materials
A two-component MMA system may require more detailed documents because the components must be stored, mixed and applied correctly.
Buyers may request:
TDS for the complete system
SDS for Component A
SDS for Component B
COA for the supplied batches
Mixing instructions
Equipment recommendations
Application procedure
Available performance test reports
Color samples
The documents should state or support the correct mixing ratio and application method.
A manual-applied MMA product should not automatically be represented as a plural-component spray product unless the formulation and documents support that use.
Documents for Road Marking Glass Beads
Glass bead documentation may include:
Technical specification
SDS or safety information when required
Certificate of Analysis
Particle-size report
Roundness information
Refractive-index information
Surface-treatment information
Available third-party reports
The COA may report items such as:
Sieve analysis
Roundness
Appearance
Moisture
Coating or surface treatment
The exact inspection items should follow the agreed standard.
Check That Documents Match the Product
Before accepting technical files, buyers should compare the document details with the quotation and packaging.
Check whether the documents show the correct:
Manufacturer or supplier
Product name
Product code
Color
Component
Mixing ratio
Packaging
Batch number
Test standard
Revision date
A generic document for another product should not be used as evidence for the purchased material.
For private-label orders, the relationship between the branded name and manufacturer’s internal product code should be clear.
Check the Revision Date
Technical and safety documents may be updated.
Buyers should check:
Issue date
Revision date
Document version
Current product name
Current company details
Applicable regulations
An outdated SDS may not reflect the current formulation or current market requirements.
If a tender specifies a maximum document age, this should be communicated before the quotation is confirmed.
Check the Test Method
A technical value has limited meaning without an identified test method.
For example, performance results may vary according to:
Sample preparation
Film thickness
Curing conditions
Test temperature
Equipment
National standard
Laboratory procedure
When comparing suppliers, buyers should make sure the results were obtained using comparable methods.
A result produced under one standard should not automatically be treated as equivalent to a result under another standard.
Documents Needed for a Tender
Tender projects may require more than the standard TDS, SDS and COA.
Possible requirements include:
Manufacturer authorization
Third-party laboratory reports
ISO certificates
Product compliance statements
Previous project references
Country-of-origin documents
Sample approval
Color approval
Warranty statement
Application procedure
Inspection plan
The buyer should send the complete tender document instead of requesting a general “full certificate package.”
This allows the supplier to identify which documents are available and which require additional testing or preparation.
Documents Needed Before Shipment
Before shipment, the buyer may need:
Commercial invoice
Packing list
Bill of lading information
Certificate of origin
TDS
SDS
COA
Inspection report
Loading photographs
Packaging declaration
Pallet-treatment documents where applicable
Not every shipment requires every document. Requirements depend on the product, destination, trade term and customer agreement.
When Should Buyers Request These Documents?
Basic TDS and SDS documents should normally be reviewed before the commercial order is confirmed.
A batch-specific COA is normally prepared after production because it must identify the actual manufactured batch.
The recommended sequence is:
Review TDS during product selection
Review SDS during transport and safety planning
Confirm COA format before ordering
Receive the final COA after production
Check document and package consistency before shipment
This avoids requesting a final batch certificate before the batch exists.
Questions Buyers Should Ask
Before placing an order, importers can ask:
Does the TDS apply to the quoted product?
Is the SDS current?
Are separate SDS files available for MMA Components A and B?
Which COA items are tested for each batch?
Are the test reports internal or third-party?
Which standard and test method were used?
Can the product code be matched to the package label?
Are additional tender documents available?
Is special testing included in the quotation?
Clear questions help prevent misunderstandings later.
Road Marking Material Documents for Export Orders
We supply thermoplastic road marking paint, two-component MMA materials, acrylic traffic paint and road marking glass beads.
Technical documents can be discussed according to the selected product and project requirements. Batch-specific inspection documents are prepared according to the confirmed order and agreed specification.
Send us your product list, required standard, destination and document requirements. We can review which TDS, SDS, COA and available test reports are relevant before preparing the quotation.
