Under its Performance Minerals segment, Imerys the world leader in industrial mineral

solutions, is your reference partner for efficient sanitaryware production.

World N°1 in prepared bodies & minerals for sanitaryware

Imerys has the largest product portfolio on the market: ball clay, chamotte, kaolin, feldspar,

talc and prepared bodies for all sanitaryware applications.

• Valued added products

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Mineral Solutions for SanitarywareTechnical datasheets

BALL CLAYS

TYPICAL DATA Hycast

VC Hycast

LR Hycast Rapide

Hycast Classic

Thaicast S1

Modiscast S1

Modiscast S4

OM#4/SB

Martin #5/L-1

KTS Classic

Certicast Vigor ID50

Vigor DV60

Vigor RC1

CHEMICAL ANALYSIS (mass %)

SiO2 53 53 53 56 63.0 64 63.4 61.7 62.2 61.9 53.0 62.9 62.5 50.8

Al2O3 30 30 30 28 22.4 22.9 22.5 25.2 24.8 24.0 29.0 23.0 24.7 31.1

Fe2O3 1.2 1.2 1.1 1.3 1.70 1.80 2.10 1.6 1.0 1.1 1.50 1.7 1.1 1.8

TiO2 1.0 1.1 1.1 1.2 0.75 0.80 0.74 1.5 1.4 1.4 2.10 0.8 1.5 1.1

CaO 0.2 0.2 0.2 0.2 0.20 0.25 0.22 0.3 0.2 0.2 0.45 0.1 0.1 0.1

MgO 0.3 0.4 0.3 0.3 0.60 0.60 0.59 0.5 0.4 0.5 0.25 0.5 - 0.2

K2O 2.0 2.2 1.7 2.2 2.15 2.00 2.10 1.2 1.6 1.2 1.35 2.0 2.2 1.4

Na2O 0.2 0.2 0.2 0.3 0.18 0.17 0.20 0.2 0.2 0.2 0.25 - 0.3 0.0

L.O.I. 12.2 12 12.5 10.7 9.0 7.8 9.0 9.3 7.9 9.0 12 9.0 7.1 13.0

Carbon 2.2 2.5 2.0 1.5 0.7 0.7 - 0.6 0.7 1.2 - - 0.39 -

PARTICLE SIZE ANALYSIS (mass %)

> 125 μm 1.5 0.7 2.0 0.8 3.0 1.5 - 7.0 0.2 - - - 2.1 5

> 53 μm 2.5 1.5 3.0 1.5 5.0 3.0 - - - - - - 5 8

< 5 μm 91 90 87 88 88 83 86 83 66 70 85 83 83 84

< 2 μm 77 76 70 76 70 66 69 67 46 51 73 69 69 70

< 1 μm 67 65 60 66 55 55 57 57 34 41 64 58 59 60

< 0.5 μm 54 54 45 55 45 45 47 46 22 30 52 48 50 51

SPECIFIC SURFACE AREA M.B.I. (mg g-1) 25.0 24.5 18.0 24.0 39.0 37.0 37 11.1 20 23.0 33 34 65 19

MoR Dried at 110 °C (MN m-2)

5.5 5.5 3.5 7.5 7.0 7.5 9.5 5.5- 2.5 6 6 - 6.5 5.8

Dried at 110 °C (p.s.i.) 780 780 500 1065 994 1065 1377.5 793 362.5 870 870 - 942.5 841

CASTING DATA

Casting concentration (mass % solids)

66.5 67.0 70.0 66.5 64.0 66.5 - 61.8 68.4 - 64 - 69 62.1

Deflocculant demand (mass % 0.7 Pa.s)

0.75 0.75 0.50 0.40 1.00 1.00 - 0.75 - - 0.7 - 0.73 2.23

Deflocculant demand (mass % 0.5 Pa.s)

1.05 1.05 0.80 0.80 1.20 1.20 - 0.98 0.7 - - - 1.0 2.62 -

FIRED AT 1180 °C

Water absorption (mass %)

5.5 6.5 8.0 4.5 0.5 0.4 - - - - 2.0 0.9 5.3 -

Brightness (%) 62.0 61.5 68.0 58.0 45.0 44.0 - - - - - - 55.7 -

Contraction (%) 13.0 12.0 11.5 11.5 9.5 9.5 - - - - 11.5 9.4 9.8 -

APPLICATION

Conventional Casting √ √ √ √ √ √ √ √ √ √ √ √ √

Pressure Casting √ √ √ √ √ √ √ √ √ √ √ √ √ √

FFC √ √ √ √ √ - - √ √ √ √ √

KAOLINS

KAOLINS FOR BODY

TYPICAL DATA Prosper LPC NSC Remblend SPK MRD Cast

MRD Lw Cast

MRD Standard

SW KT Cast OptiKast

KaoCast ND50

CHEMICAL ANALYSIS (mass %)

SiO2 48.0 48.5 48.0 48.0 48.5 48.0 48.0 48.0 45.1 45.2 48.7

Al2O3 35.5 36.0 36.5 36.5 36.0 36.0 36.0 36.0 38.8 38.7 33.8

Fe2O3 1.50 1.18 0.98 1.17 1.18 1.20 1.10 1.30 0.4 0.5 0.68

TiO2 0.05 0.06 0.06 0.05 0.1 0.04 0.04 0.05 1.6 1.6 1.01

CaO 0.06 0.05 0.06 0.07 0.05 0.01 0.01 0.01 0.1 0.1 1.34

MgO 0.25 0.30 0.30 0.30 0.3 0.01 0.01 0.01 0.1 Trace 0.04

K2O 2.80 2.42 2.00 2.25 2.62 1.90 1.90 2.10 0.1 0.1 1.25

Na2O 0.10 0.15 0.10 0.10 0.1 0.01 0.01 0.01 0.1 0.1 0.01

L.O.I. 10.2 11.7 11.9 12.0 11.5 12.50 12.5 12.5 13.6 13.6 12.7

PARTICLE SIZE ANALYSIS (mass %)

> 53 μm 0.8 Max. 1.00 Max. 0.15 Max. 0.25 Max. 0.1 Max. 3.0 Max.2.0 Max. 3.0 - - 4

> 8 μm - 24 19 19 25 27 27 26 - - -

< 2 μm 28 32 40 39 26 24 27 30 40 55 42

MoR Dried at 110 °C (MN m-2) 0.3 0.4 0.7 0.5 0.4 0.4 0.5 0.7 1.6 1.7

CASTING DATA

Casting concentration (mass % solids)

65 65.0 69.0 66.5 64.5 61 61 62 73 71 -

Casting rate (mm2 min-1) 7.5 3.0 0.8 1.90 11.0 21 14 11.0 1.4 1.7 1.9

Deflocculant demand (mass % P84) 0.34 0.44 0.45 0.48 0.40 0.56 1.06 1.06 0.45 0.3 0.3

FIRED AT 1180 °C

Water absorption (mass %) 7.7 16.0 13.0 16.5 18.0 18.0 18.0 17.0 - - 11.7

Brightness (%) 62.0 81 80 82 79 82 82 80 - - -

Contraction (%) 10.7 7.0 7.5 7.0 7.0 6.5 7.5 7.5 - - 9

APPLICATION

Vitreous - Conventional casting √ √ √ √ √ √ √ √ √ √ √

Vitreous - Pressure casting √ √ √ √ √ √ √ √ √

FFC √ √ √ √ √ √ √

KAOLINS FOR GLAZE

TYPICAL DATA Remblend KaoShine RC70 SPK MRD Cast

CHEMICAL ANALYSIS (mass %)

SiO2 48.0 46.1 48.5 48.0

Al2O3 36.5 38.8 36.0 36.0

Fe2O3 1.17 0.60 1.18 1.20

TiO2 0.05 0.40 0.1 0.04

CaO 0.07 < 0.01 0.05 0.01

MgO 0.30 < 0.01 0.3 0.01

K2O 2.25 < 0.01 2.62 1.90

Na2O 0.10 < 0.01 0.1 0.01

L.O.I. 12.0 14.0 11.5 12.50

PARTICLE SIZE ANALYSIS (mass %)

> 53 μm Max. 0.25 - Max. 0.1 Max. 0.1

> 8 μm 19 - 25 27

< 2 μm 39 42 26 24

PRODUCT SPECIFICATIONS WhiteSpar

White Flux XS 100 Rio Piron FC200 Minspar 200

% ± % ± % %

CHEMICAL ANALYSIS (%)

SiO2 66.5 1.0 73.1 1.5 82.5 < 70 68.8

Al2O3 18.2 1.0 16.5 1.5 9.7 > 16.30 18.2

Fe2O3 Max 0.10

- < 0.15 - 0.10 < 0.130 0.07

TiO2 0.01 - 0.04 0.02 0.06 < 0.05 -

CaO 0.25 - 0.3 0.1 0.02 0.2 ± 0.8 1.5

MgO 0.03 - 0.05 - 0.07 - Tr.

K2O Min. 11.0 - 3.4 0.3 6.90 > 10.0 4.1

Na2O 2.50 0.75 4.2 0.5 0.29 2.0 ± 3.0 6.5

LiO2 - - > 0.8 - - - -

L.O.I. < 0.3 1.1 - 0.6 - 0.3

PHYSICAL PROPERTIES (%) Moisture - 6 - - 0.1

PRODUCT FORM & PACKAGING 25, 40, 1200,1250

& 1350 kg bags Big bags,

25 kg bags - Big bags, 25 kg bags -

Powder Milled Sand, Milled Milled Milled

FELDSPARS

CHAMOTTES

TYPICAL DATA Clayrac™ EPUREE Clayrac™ SMD CHKC1 Molochite

CHEMICAL ANALYSIS (%)

SiO2 56.9 56.7 - 54.0

Al2O3 38.5 38.5 42.0 42.0

Fe2O3 1.5 1.6 1.2 1.30

TiO2 1.6 1.7 1.5 0.07

CaO 0.3 0.3 - 0.07

MgO 0.3 0.3 - 0.30

K2O 0.8 0.8 < 0.1 2.0

Na2O 0.1 0.1 - -

PHYSICAL PROPERTIES

Bulk density (g cm-3) 2.34 2.32 - -

Apparent porosity (%) 10 10 - -

Water absorption (%) 4.3 4.3 - 10

THERMAL EXPANSION (%) 200 °C 0.18 0.19 0.25 0.12

600 °C 0.40 0.42 0.45 0.3

MAIN PARTICLE SIZE DISTRIBUTION (μm) Other PSD on request

100 100 - -

200, 250 200, 250 200 -

320 320 300 -

500 500 - -

TALCS

TYPICAL DATA Extra 5/0 (1) Extra A (1) V8077(1)

CHEMICAL ANALYSIS (%)

SiO2 59.7 58.7 61.0

Al2O3 1.15 1.5 1.0

Fe2O3 0.90 1.20 1.0

TiO2 < 0.10 - 0.04

K2O 0.02 - 0.01

Na2O 0.10 - -

CaO 0.7 0.9 0.92

MgO 31.0 30.7 30.0

L.O.I. at 1050 °C 6.1 6.5 6.0

L.O.I. at 625 °C - 1.4 -

MINERAL ANALYSIS (%)

Talc

By thermo gravimetric analysis

- - 87.0

Chlorite - - 11.0

Talc / Chlorite - - -

Dolomite - - 0.5

Dolomite and calcite - - -

SPECIFIC SURFACE AREA B.E.T. (m2 g-1) ISO 9277 3.2 3.4 -

CERAMIC CHARACTERISTICS

Whiteness Y Minolta CR300, illuminant D65/2° 91.0 88.5 -

L* CIE - 94.6 -

a* CIE - - 0.2 -

b* CIE - 1.2 -

PHYSICAL PROPERTIES

Density (g cm-3) ISO 787/10 2.78 - -

Loose bulk density (g cm-3) EN 1097/3 0.50 0.4 -

Tapped bulk density (g cm-3) ISO 787/11 0.90 0.8 -

Screen residue ≥ 75 μm (%) Alpine Air-jet max. 2.0 < 0.5 -

Moisture content at 105°C (%) ISO 787/2 < 0.2 0.3 -

Specific gravity ISO 787/10 - 2.78 -

Refractive index 1.57 - -

pH ISO 787/9 - - -

(1) Suitable for glazes & engobes.

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These values do not represent a specification. The data quoted are determined by the use of Imerys Standard Test Methods, copies of which will be supplied on request. Every precaution is taken in production to ensure the products conform to our published data. Since the products are based on naturally occurring materials, we reserve the right to change these data should it become necessary. Sales are in accordance with our “Conditions of Sale”, copies of which will be supplied on request.

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