OUTER CARTON OF POROSE CORPS OR PLATTERS MADE OF FISH AND A HARDED ASSOCIATION

摘要

A porous body comprises fibres 1 bonded by a cured bonding agent 2. The fibres may be of mineral wool and the body may be a tile or slab suitable for outside insulation or facing of houses. After curing the bonding agent 2 a liquid binder composition containing a solvent is applied and initially saturates the interspaces 3 but is then dried to form a film 4 along the fibres leaving open pores 3 between the fibres. As a result the surface of the body is hard and strong even though the body remains porous and permeable to water vapour. IMAGE