| 摘要 |
<p>The invention provides a lightweight filler composition comprising a closed, gas-filled, discrete sphere ceramic filler, a thixotropic rheology modifier, a water-dispersible resin, and water, the weight ratio filler/water in the composition being from about 1.3:1 to about 2.2:1. Also described is a method for preparing a lightweight filler composition, which method includes the step of mixing a thixotropic rheology modifier and water in the absence of filler and using sufficient shear to form a gel therefrom, and mixing the resulting gel with a closed, gas-filled, discrete sphere ceramic filler and, if not present during said gel formation, a water-dispersible resin. The invention enables a multipurpose filler to be produced which can be applied in thick layers and is quite suitable for "DIY" plastering or rendering, amongst other uses.</p> |
