Polished most smooth finish
with sheeny surface.
Honed a smooth finish
with a slight sheen, produced by using a polishing head.
Sandblasted sawn
stone slabs are coarsely polished: this removes saw marks and leaves
a semi-smooth, regular finish.
Flamed the top surface
of the slab is burnt off, giving an irregular textured
Quality Control
Criteria:
Granite should be grade 1 quality, and the finish as follows:
Polishing
Polishing will be uniform throughout the slabs/tiles and in gloss
meter as:
--------For black slabs / tiles: polishing +95 in gloss meter
--------For colored slabs/ tiles: polishing +85 in gloss meter
There should be no grinding wheel marks on the polished face.
Flaming
Flaming will be uniform throughout the slabs/tiles and brushed evenly
on slabs after flaming
Thickness
+/- 1.0mm in tolerance for slabs; +/-0.5mm in tolerance for tiles
Flatness
If length <= 400mm,flatness tolerance: +/-0.2mm
If 400mm < length < 1000, flatness tolerance: +/- 0.5mm
If length >= 1000mm, tolerance: +/- 0.8mm
Diagonal Out
+/- 0.5mm in tolerance for tiles
Length and Width:
+/- 0.5mm in tolerance for tiles and slabs (not apply to the random
edge slabs).
Unpolished Side: The
unpolished side of the slab/tiles should be flat and smooth.
Crack, Edge Defect, Corner Defect:
Not allowed for slabs and tiles.
Surface Treatment:
If it is possible, treat the slab/tile surface after it has been
polished. So there is no little dent. This treatment is not required,
but is recommended. |
