Abstract: The present inversion provides a low corrosion external release agent for ligno-cellulose composite panels comprising two or more anionic surfactants selected from the following groups where at least one of the anionic surfactants is selected from a) or b): an ethoxylated phosphate ester or a salt thereof having the formula wherein, R, R1 and R2 are independently selected from the group consisting of H, and C6-C30 alkyl having an average of 1-20 moles of ethoxylation, with the proviso that at least one of R, R1 and R2 is H and the other one or two of R, R1 and R2 is C6-C30 alkyl haying an average of 1-20 moles of ethoxylation, and b) a phosphate ester or a salt thereof haying the formula. wherein, R3, R4 and R5 are independently selected from the group consisting of H, and C6-C18 alkyl Chain, with the proviso that at least one of R3, R4 and R5 is H and the other one or two of R3, R4 and R5 is C6-C18 alkyl chain, and c) an organic sulfur containing anionic surfactant or a salt thereof.

Abstract: The present inversion provides a low corrosion external release agent for ligno-cellulose composite panels comprising two or more anionic surfactants selected from the following groups where at least one of the anionic surfactants is selected from a) or b): an ethoxylated phosphate ester or a salt thereof having the formula wherein, R, R1 and R2 are independently selected from the group consisting of H, and C6-C30 alkyl having an average of 1-20 moles of ethoxylation, with the proviso that at least one of R, R1 and R2 is H and the other one or two of R, R1 and R2 is C6-C30 alkyl haying an average of 1-20 moles of ethoxylation, and b) a phosphate ester or a salt thereof haying the formula. wherein, R3, R4 and R5 are independently selected from the group consisting of H, and C6-C18 alkyl Chain, with the proviso that at least one of R3, R4 and R5 is H and the other one or two of R3, R4 and R5 is C6-C18 alkyl chain, and c) an organic sulfur containing anionic surfactant or a salt thereof.