Technical documents
How to Read a Coating Technical Data Sheet
A practical method for reviewing intended use, substrate, environment, coverage, drying, mixing, storage, and limitations in a coating TDS.
Updated: · 6 min
Direct answer
First verify product, model, version, and issuer. Then review intended use and limitations, substrate, environment, mixing, theoretical coverage, drying, application, storage, and safety. A TDS is a manufacturer technical document—not a third-party test report or a replacement for site samples and market review.
Match the document to the product
Confirm name, model, date, and issuer against the quoted SKU; similar product names may have different systems.
Translate theory into site questions
Theoretical coverage changes with roughness, absorption, color difference, and loss. Drying changes with temperature, humidity, ventilation, and film build.
- Is the substrate sound and dry?
- Is the environment allowed?
- Can the crew manage ratio and pot life?
- Do recoat and cure fit the schedule?
Preserve conditions and units
Technical values have test or application conditions. Keep units and conditions whenever citing a number rather than extracting a result alone.
Separate TDS, SDS, and test reports
TDS explains product/application, SDS supports hazard and handling review, and a third-party report records results for an identified sample and method.
Manage versions
Request the current file before ordering. Reconfirm after formulation, packaging, destination, or regulatory changes and retain the accepted version.
Frequently asked questions
Is TDS coverage the actual order quantity?
No. Convert theoretical coverage using substrate, color, coats, loss, and contingency.
Does a TDS prove third-party testing?
No. Review the original report for laboratory, sample, method, and result.
Why is a site sample still needed?
The TDS sets general boundaries; the sample validates substrate, color, texture, tools, and crew execution.