How to compare rubber flooring abrasion results
An abrasion number is useful only when you know what was tested and how. Compare rubber flooring reports using the specimen, method, conditions and result metric together. A laboratory wear result does not establish a floor's lifespan, and a finished-floor result cannot be assigned to loose granules. No Bedrock abrasion performance is established here.
Explore the questionsBefore two results can be compared
- Same comparison basis
Identify the manufactured specimen, its construction and preparation.
- Compatible test conditions
Check the method, abrading surface, load, duration and conditioning.
- Same result meaning
Mass loss, volume loss and cycles to an endpoint are different measures.
Read beyond 'pass'
A pass needs the named requirement, applicable method and tested product.
Keep units and conditions together
Do not rank unlike reports by the smallest printed number.
Do not convert wear into years
Abrasion is one test of a specimen, not a complete durability or service-life prediction.
Applications
Choose the question you want to explore.
What information belongs beside an abrasion result?
Ask for enough context to identify the comparison
Request the report or a documented summary that identifies:
- Specimen: product, construction, thickness and preparation.
- Method: the named procedure, edition and any departures.
- Conditions: the abrading surface, load, test duration and conditioning used.
- Result: units, endpoint and the acceptance rule behind any pass.
- Traceability: test date, laboratory and specimen identity.
Taber’s testing guidance starts with the purpose and wear mechanism, then the method. This checklist is a buyer’s comparison aid, not an instruction to invent a new test or override the laboratory’s procedure.
Why are mass loss, volume loss and cycle counts different?
A shared heading does not make the numbers interchangeable
Taber describes several evaluation approaches, including material removed by mass, a volume-based comparison and cycles to a defined endpoint. Its guidance also stresses matched test parameters when making the relevant comparison.
ISO 4649:2024’s public scope describes a rotating-drum abrasion test for rubber. It permits reporting relative volume loss or an abrasion resistance index. Those labels are not interchangeable with a mass-loss result from a different procedure.
Ask the laboratory whether the two reports support a direct comparison. Do not convert between methods, ignore specimen construction or treat all uses of the word ‘index’ as the same scale.
Does a good abrasion result prove a durable floor?
It answers a defined wear question, not every question about use
No single abrasion figure settles a floor’s service life. ISO 4649 explicitly cautions against inferring a close relationship between that test’s results and performance in service. Use the result for the comparison it supports, not a promised number of years.
Also distinguish a test method from a finished-product specification. ASTM F3041’s public scope concerns the compound and physical characteristics of bonded rubber crumb floor coverings. A raw granule label is not proof that a manufactured floor satisfies that specification. The public scope alone does not provide the full acceptance requirements.
Have the responsible technical team identify the additional evidence required by the intended floor and use. An abrasion pass does not itself establish slip resistance, impact protection, fire behaviour or acoustic performance.
How does this help when evaluating a new granule supply?
Keep the incoming material and the manufactured result linked, but separate
If abrasion is an acceptance criterion for your manufactured flooring, identify the finished specimen and approved test plan before evaluating a new input. Keep the granule sample identity connected to the formulation and test record. The sample-to-container checklist helps carry that evaluation into the buying decision. A result then describes that tested product; it does not become an inherent lifespan rating for every product made from the same granules.
Give Bedrock the required granule specification, intended manufacturing use, evaluation needs, quantity and destination. Explore the black recycled rubber granule supply and material range, then confirm which information can be supplied. Do not assume an abrasion certificate or finished-floor approval is available.
Evaluating granules for a flooring product?
Send your incoming-material specification, manufacturing use, evaluation requirements, quantity and destination. We can discuss material options without substituting a raw-material offer for finished-floor test evidence.
Discuss material for your flooringCommon questions
Is the lower abrasion number always better?
Not without knowing the metric and comparison conditions. Material loss, an abrasion index and cycles to an endpoint do not all mean the same thing. Compare reports only on a technically valid basis.
Can I compare two products if both say 'Taber tested'?
That phrase alone is insufficient. Ask for the procedure, specimen, wheel or abrading surface, load, duration, result and acceptance criterion. Have the laboratory confirm whether the reports can be compared.
Can Bedrock promise a wear life for flooring made with its granules?
No such performance is established by this guide. The manufactured formulation, test evidence and intended use need their own assessment. Granule supply information is separate from a finished-floor lifespan claim.