prov:value
| - By combining the reaction mixture with foamed or solid inorganic or organic additives, such as, for example, polystyrene foam, polyurethane foam, phenoplasts, aminoplasts, gravel or expanded clay, urea or phenolic resin foams, foamed glass, glass fibers, wood, mineral wool, pumice, or other materials it is also possible to obtain composite materials characterized by special intumescent properties.
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