Does Giallo Siena marble need to be sealed?
Yes, routinely rather than as a rescue.
Answer
How long does a Giallo Siena marble floor last in commercial use?
Keeping the surface
There is no published service life for a Giallo Siena marble floor, and this site does not invent one. What is published is the material's compressive strength of 89.4 to 175 MPa and its Mohs hardness of 6, and what decides the life of a floor is the traffic, the support and the maintenance regime.
The figures
| Property | Value | Source |
|---|---|---|
| Compressive strength | 89.4 to 175 MPa (published values across sources) | EN 1926-07 |
| Mohs hardness | 6.5 | Published technical sheet |
| Flexural strength after 48 frost cycles | 20.1 MPa mean | EN 12371-03 |
| Sealing cycle | 6 to 12 months, or by use | Published maintenance practice |
Why this stone behaves this way
A stone floor does not fail because the stone gave out. It fails at the joint, at the substrate and at the arris, and it is kept going by a maintenance routine rather than by a number of years. Publishing a service life for a material would be a claim nobody can check.
What these figures are, and what they are not There is no service-life figure published for this material and none is given here. The figures above are the material's properties, and they do not by themselves set the life of a floor.
Where these figures come from
- S1 granitalsiena.com — Giallo Siena marble technical sheet (EN standard test values; Politecnico di Torino marble laboratory)
- S6 StoneContact — Giallo Siena Unito and Broccatello di Siena entries, carrying Università di Pisa - Politecnico di Torino test values for the material
- S15 mggroupin.com — marble maintenance practice (sealing cycle, etching prevention)
Where to go next
On the same subject
More questions about Giallo Siena marble
Will acid damage Giallo Siena marble?
Yes, and permanently.
How do you clean Giallo Siena marble?
With a soft cloth or a non-abrasive mop and a cleaner made for marble, neutral in pH.
This answer sits on the Keeping the surface page, with the rest of the questions about it.
Care and maintenanceAsk for a price
A thickness, a format, a finish, a quantity and a destination will get you a quotation for Giallo Siena marble.
How long does a Giallo Siena marble floor last in commercial use?