the application of mineral science supreme · a natural china clay product with low carbon...

Supreme™ Premium opacifying and thickening extender for decorative paints

Supreme™ premium kaolin from IMERYS gives

multiple benefits when used in decorative matt

wall paints, functioning both as an opacifying

extender and also as a rheology modifier.

The unique mineralogical make-up of the kaolin deposit

in Cornwall in the UK gives us a naturally fine platy product

that effectively spaces titanium dioxide particles in paint

formulations, as well as providing thixotropic thickening.

This allows a saving of up to 15% of the titanium dioxide in

the paint, and additionally reduces the thickener requirement.

T H E A P P L I C A T I O N O F M I N E R A L S C I E N C E

A T T R I B U T E S

- Reduces formulation cost

- Titanium dioxide extension

- Thixotropic low shear thickening

- Outstanding opacity

- Especially effective in highquality matt paints

- Good colour properties

- Easy to disperse inwater-based paints

Supreme™

A natural china clay product with low carbon footprint.

F O R M O R E I N F O R M A T I O N

t: +44 (0)1726 818000 f: +44 (0)1726 811200 coatings.kaolin@imerys.com imerys-kaolin.com

Using specially selected feed from IMERYS’ deposits in

Cornwall, Supreme™ hydrous kaolin is engineered to an

ultrafine average particle size of 0.4μm to give optimal

spacing of titanium dioxide particles. This significantly

improves coating opacity, therefore allowing a

reduction in the TiO2 content of up to 15%.

As well as its exceptional opacity, Supreme™ brings unique

rheological properties to a paint.

The thixotropic low shear thickening effect allows a reduction

in the thickener requirement, or can be utilised to improve

anti-settling properties and sag resistance. It is particularly

beneficial in high quality matt paint formulations, and in

high gel strength paints.

UKP/PC012 - THIRD EDITION - 03/17

The more thick and creamy the paint, the better in-can stability is achieved, which helps

to reduce syneresis. It also allows a reduction of expensive thickening agents.

At equivalent particle size, IMERYS UK hydrous kaolins give significantly better performance in terms

of low shear viscosity increases and gelling, with Supreme™ giving best performance of all kaolins.

G E L S T R E N G T H A N D B R O O S K F I E L D

V I S C O S I T Y A T X % L O A D I N G

O P A C I T Y I N P A I N T

Supreme™

Speswhite™

Polwhite™ B

Polwhite™ E

120

100

80

60

40

20

0

0.1 1 10

Gel

str

engt

h (g

.cm

)

Extender equivalent spherical diameter (µm)

Hydrous kaolin Talc Calcium Carbonate

Supreme™Speswhite™

Polwhite™ B

Polwhite™ E

2500

2000

1500

1000

500

0

0.1 1 10

1rpm

Bro

okfi

eld

visc

osit

y (P

oise

)

Extender equivalent spherical diameter (µm)

Hydrous kaolin Talc Calcium Carbonate

Supreme™

Speswhite™

Polwhite™ B

Polwhite™ E

93

92

91

90

89

88

88

87

86

85

84

83

0.1 1 10

Opa

city

at

20m

2 /l

Extender equivalent spherical diameter (μm)

Hydrous kaolin Talc Calcium Carbonate