How is Giallo Siena marble bookmatched?
Consecutive slabs from one block are opened and laid face to face, so the movement of the stone mirrors across the joint and reads as one surface rather than as a series of panels.
Answer
What does resin backing do for Giallo Siena marble?
What happens before it is a surface
It closes the small holes and cracks so the slab can be cut thin and polished. Giallo Siena marble arrives resin-backed from the extraction site and blocks are recommended to undergo vacuum resin treatment before sawing, which is what makes a 10 mm cut possible.
The figures
| Fact | Detail | Source |
|---|---|---|
| Pre-sawing treatment | Vacuum resin recommended before sawing | Published block and slab characteristics |
| Minimum cut thickness | 10 mm after vacuum resin treatment | Published block and slab characteristics |
| Why resin | Blocks are a breccia with naturally formed cracks visible in the block | Published material note |
| Consequence | Edge profiling has to be done with care at corners on a brittle material | Published material note |
Why this stone behaves this way
Giallo Siena marble is a breccia: fragments broken and re-cemented, with the calcite seams running through it. Those seams are why the published minimum cut thickness is stated after treatment, and why the corners of an edge profile are the place a piece of this stone breaks.
What these figures are, and what they are not Resin backing improves the surface and enables a thin cut. It does not make the stone a different material and it does not remove the natural cracks that are part of the block.
Where these figures come from
- S1 granitalsiena.com — Giallo Siena marble technical sheet (EN standard test values; Politecnico di Torino marble laboratory)
- S12 marlastone.co.uk — Giallo Siena material note (brecciated structure, resin backing, edge care)
Where to go next
On the same subject
More questions about Giallo Siena marble
How do you avoid the natural cracks in Giallo Siena marble?
You do not avoid them in the block — they are part of it — you avoid them in the piece.
How is Giallo Siena marble cut from the block?
With a gang saw, which takes the block into slabs along one cut plane, so every slab off that block comes from the same plane.
This answer sits on the What happens before it is a surface page, with the rest of the questions about it.
FabricationAsk for a price
A thickness, a format, a finish, a quantity and a destination will get you a quotation for Giallo Siena marble.
What does resin backing do for Giallo Siena marble?