A polyol component P) comprising: a) at least one polyether polyol A) having an OH number in the range from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality in the range from 5.7 to 6.4 of the monomers ai), aii) and aiii), respectively selected from the groups consisting of ai) sucrose, aii) monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, glycerol or mixtures thereof, aiii) exclusively propylene oxide as alkylene oxide, b) at least one polyether polyol B) having an OH number in the range from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality of 3.0 to 5.0 of the monomers bi) and bii), respectively selected from the group consisting of bi) 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine or mixtures thereof, bii) exclusively propylene oxide as alkylene oxide, c) at least one polyether polyol C) having an OH number in the range from 100 to 290 mg KOH/g, comprising units based on mixtures having a functionality in the range from 3.0 to 5.0 or 2.8 to 3.0 of the monomers ci) and cii), respectively selected from the groups consisting of ci) amines comprising ethylenediamine, 1,3-propylenediamine, 1,3-, 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5-, 1,6-hexamethylenediamine, phenylenediamines, 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine and 4,4'-, 2,4'-, 2,2'-diaminodiphenylmethane or mixtures thereof, polyols comprising glycerol, trimethylolpropane, monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol (2,2'-oxydi-1-propanol, 1,1'-oxydi-2-propanol, 2-(2-hydroxypropoxy)-1-propanol) or mixtures thereof, cii) ethylene oxide, propylene oxide, butylene oxide or mixtures thereof as alkylene oxides. a) at least one polyether polyol A) having an OH number in the range from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality in the range from 5.7 to 6.4 of the monomers ai), aii) and aiii), respectively selected from the groups consisting of ai) sucrose, aii) monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, glycerol or mixtures thereof, aiii) exclusively propylene oxide as alkylene oxide, ai) sucrose, aii) monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, glycerol or mixtures thereof, aiii) exclusively propylene oxide as alkylene oxide, b) at least one polyether polyol B) having an OH number in the range from 300 to 500 mg KOH/g, comprising units based on mixtures having a functionality of 3.0 to 5.0 of the monomers bi) and bii), respectively selected from the group consisting of bi) 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine or mixtures thereof, bii) exclusively propylene oxide as alkylene oxide, bi) 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine or mixtures thereof, bii) exclusively propylene oxide as alkylene oxide, c) at least one polyether polyol C) having an OH number in the range from 100 to 290 mg KOH/g, comprising units based on mixtures having a functionality in the range from 3.0 to 5.0 or 2.8 to 3.0 of the monomers ci) and cii), respectively selected from the groups consisting of ci) amines comprising ethylenediamine, 1,3-propylenediamine, 1,3-, 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5-, 1,6-hexamethylenediamine, phenylenediamines, 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine and 4,4'-, 2,4'-, 2,2'-diaminodiphenylmethane or mixtures thereof, polyols comprising glycerol, trimethylolpropane, monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol (2,2'-oxydi-1-propanol, 1,1'-oxydi-2-propanol, 2-(2-hydroxypropoxy)-1-propanol) or mixtures thereof, cii) ethylene oxide, propylene oxide, butylene oxide or mixtures thereof as alkylene oxides. ci) amines comprising ethylenediamine, 1,3-propylenediamine, 1,3-, 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5-, 1,6-hexamethylenediamine, phenylenediamines, 2,3-, 3,4-, 2,4-, 2,5-, 2,6-tolylenediamine and 4,4'-, 2,4'-, 2,2'-diaminodiphenylmethane or mixtures thereof, polyols comprising glycerol, trimethylolpropane, monopropylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol (2,2'-oxydi-1-propanol, 1,1'-oxydi-2-propanol, 2-(2-hydroxypropoxy)-1-propanol) or mixtures thereof, cii) ethylene oxide, propylene oxide, butylene oxide or mixtures thereof as alkylene oxides.