RCF BALL CLAY
Aluminium Silicate (H4AI2Si2O)
General Description
Ball Clay is defined by the American Society for Testing and Materials as a secondary clay commonly characterised by the presence of organic matter, high plasticity, high dry strength, long vitrification range and a light colour when fired. Kaolinite is the principal mineral constituent typically making up to 90% of the clay.
Chemical Analysis %
SiO2 ……………………….47,7%
AI2O3 ……………………36,1%
LOI ………………………..11,8%
TiO2 ………………………..1.7%
Fe2O3 ……………………..0,8%
MgO ………………………..0,5%
CaO …………………………0.1%
K2O …………………………0,1%
Physical Properties
Kaolinite: 90%
Moisture Content: Extrusion…………25%
Critical……………..16%
Contraction: Wet-Dry…………………….6,5%
Modules of Rapture (Dried 1100 C) – 100lbs per sq. ins.
Natural Colour: Grey to black
Grading: 270 – 400 mesh
Packaging: 50kg ply paper bags
CHEMICAL Properties
|
Temperature Colour |
Fired Properties % Contraction |
% Contraction |
|
|
Dry Fired |
Absorption |
|
1050 |
3.0 |
16.5 |
|
1100 |
6.0 |
11.00 |
|
1150 |
8.0 |
8.50 |
Application
Used principally in the manufacture of Vitreous china, sanitary ware, electrical porcelain floor and wall tiles, dinner ware, refractory products, ceramic glazes and porcelain enamel slips.
Disclaimer
This technical information is submitted on the basis of our own research and the research of others, and we believe it is accurate. However, no guarantee of its accuracy is made neither can we cover every possible application of our products nor can we anticipate every variation encountered in manufacturing equipment and methods. For this reason our products are sold without warranty, express or implied, and also on the condition those purchasers conduct their own tests to determine the suitability of such products for their particular purposes. Statements concerning the possible use of our products are not intended as recommendations to use our products in the infringement of any patent.