PRORECO

SEALING COMPOSITIONS, [ CEMENTS, PUTTIES, ] AND CAULKING COMPOUNDS IN THE FORM OF SPREADABLE PASTES DISPERSIONS, SEMI-LIQUIDS, AND LIQUIDS, GENERALLY CONTAINING ORGANIC COPOLYMERS AND CONDENSATION POLYMERS, FOR USE IN SEALING AND CEMENTING JOINTS, AS A SEALANT BETWEEN METALLIC MEMBERS AND BETWEEN METALLIC MEMBERS AND GLASS, AND AS A SOUND INSULATOR