| 摘要 |
<p>Fibres or industrial wools which have been opened by carding, and granules of perlite are impregnated with silicones and together with bonding resin, they are added to the components of the product described in parent patent. The mist. when sprayed on outer walls by a machine gives a boating which adheres better, is harder and has improved impermeability. A finishing coat of resin loaded with quartz may also be added to improve the sealing and the mechanical qualities of the surface.</p> |
