method of producing a brandschützenden, steamed material as well as the former coatings, insulation, kabelabschottungen, dämmschutzschichten plates.formkörpern and other shaped objects from it on the

摘要

Material is based on Mg oxychloride or Mg oxychloride-cement, starting from an aq. suspension of the MgO and/or Mg(OH)2 with MgCl2; the suspension also contains fibres esp. chopped glass fibres, and a surfactant. The suspension is converted into foam by adding a foam ant, viz. H2O2 and/or other peroxide evolving O2, plus an activator, esp. an Mn (II) cpd., and also a pore promoter, viz, a water-soluble or -dispersible cellulose-deriv., -ether, or -ester, and/or a dispersion of synthetic resin. The glass fibres are pref. chopped glass mats or fabric with fibre length 2-7, esp. 3-5 mm. The material is used esp. as a coating 0.3-12, esp. 1-4 cm thick on metal, wood, concrete, brickwork, building elements, plastics. Use of Mg powder as a foamant is avoided because the Mg constitutes a fire hazard both in the mfr. and use of this type of material.