Zellige quality report

Zellige special characteristics

Regarding the colour

Zellige is made by placing the different pieces in the oven in order to bake them. Depending on where each of these pieces is placed they will have different tonalities, as they may have received more or less heat intensity, this is its main sign of identity. Therefore, they might be variations of colours inside a zellige box as well as between different boxes.

That is why when it comes to placing the zelliges, it is highly recommended to take zelliges randomly from the same box as well as from different boxes, in order to avoid zones with high concentration of pronounced variations.

Regarding shape and finish

Due to the artisanal methods carried out during the whole manufacturing process, there will be small imperfections which taken isolated may seem less attractive, but in a global context they will be very subtle. Therefore, there is no reason to classify them in order to use only the “perfect” tiles. Up to 5% of small imperfections should be tolerated, as we can take advantage of these tiles and used them where cut tiles are needed for the finishes, and therefore there will be almost no leftovers. Our zellige is subject to a strictly selection during the manufacturing process, nonetheless, the craft feature that characterises it, impedes to achieve the uniformity of an industrial material.

TECHNICAL SPECIFICATIONS

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Dimensions and surface appearance (UNE-EN ISO 10545-2-98)

Tiles 1 2 3 4 5 6 7 8 9 10
Length (mm) 100.12 100.65 99.65 100.12 100.10 100.36 98.95 100.06 100.23 100.42
100.23 100.15 100.10 99.95 100.05 100.10 100.26 100.41 100.12 100.32
Tile average length (mm) 100 100 100 100 100 100 100 100 100 100
Sample average length (mm) 100
Width (mm) 100.51 100.23 100.20 100.16 100.40 100.12 100.52 100.32 100.07 99.89
99.98 100.03 100.12 100.06 100.03 100.21 100.15 100.45 100.26 100.36
Tile average width (mm) 100 100 100 100 100 100 100 100 100 100
Sample average width (mm) 100
Average length deviation (%) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Average width deviation (%) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Manufacturer length deviation (%) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Manufacturer width deviation (%) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Thickness (mm) 12.65 12.43 12.48 12.65 12.45 12.53 12.59 12.58 12.54 12.60
12.48 12.25 12.50 12.60 12.65 12.70 12.65 12.50 12.58 12.58
12.36 12.54 12.53 12.57 12.58 12.65 12.45 12.60 12.58 12.77
12.41 12.67 12.55 12.53 12.64 12.43 12.53 12.59 12.63 12.63
Tile average thickness (mm) 12.5 12.5 12.5 12.6 12.6 12.6 12.6 12.6 12.6 12.6
Manufacturer deviation thickness (%) 0.0 0.0 0.0 0.8 0.8 0.8 0.8 0.8 0.8 0.8

Water absorption (UNE-EN ISO 10545-3-97)

Tile 1 2 3 4 5
Dry mass (g) 186 187 183 182 184
Humid Mass (g) 212 213 213 215 214
Water absorption coefficient, E (%) 14.0 13.9 16.4 18.1 16.3
Average coefficient, E (%) 15.7

Flexing and breaking load resistance (UNE-EN ISO 10545-4-97)

Tile 1 2 3 4 5 6 7 8 9 10
Breaking load, F (N) 265 301 245 236 241 243 267 250 268 270
Average breaking load (N) 267
Breaking strength, S (N) 212 241 196 189 193 194 214 200 214 216
Average breaking strength (N) 207
Flexing resistance, R (N/mm2) 2.0 2.3 1.9 1.8 1.8 1.8 2.0 1.9 2.0 2.0
Average flexing resistance, R (N/mm2) 2.0

Stain resistance (UNE-EN ISO 10545-14-98)

Stains that leave traces (chair legs)
Tile 1 2 3 4 5
PROCEDURE A REMOVED REMOVED REMOVED REMOVED REMOVED
PROCEDURE B
PROCEDURE C
PROCEDURE D
Stains that produce an oxidant chemistry reaction
Tile 1 2 3 4 5
PROCEDURE A REMOVED REMOVED REMOVED REMOVED REMOVED
PROCEDURE B
PROCEDURE C
PROCEDURE D
Stains that create a layer
Tile 1 2 3 4 5
PROCEDURE A REMOVED REMOVED REMOVED REMOVED REMOVED
PROCEDURE B
PROCEDURE C
PROCEDURE D
Results’ classification
Tile 1 2 3 4 5
CLASSIFICATION 5 5 5 5 5

Chemical resistance determination (UNE-EN ISO 10545-13-98)

Tile 1 2 3 4 5
SOLUTION 4.1 y 4.2 GA GA GA GA GA
SOLUTION 4.3.1 GLA GLA GLA GLA GLA
SOLUTION 4.3.2 GHA GHA GHA GHA GHA
CLASS UA, ULA and UHA No Visible Effects


Bejemat piece characteristics

Slipping resistance
Number of Tests 1 2 3 4 5
INDIVIDUAL USRV LEVEL 35 35 37 37 35 35 35 35 37 37
AVERAGE USRV LEVEL 35.8