Sound damping compositions and methods for application and use

A sound damping composition, comprising:

• 47 to 70 parts by weight of a polymer;
• a polyacrylate thickener;
• and
• a polyurethane thickener;
• a surfactant comprises a C9-C16 alkyl alcohol alkoxylated,
• wherein the total amount of theology thickeners in the composition is 2 parts by weight or less.

A sound damping composition, comprising:

• a polymer derived from greater than 80% of one or more monomers selected from the group consisting of butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, methyl acrylate, ethyl acrylate, and combinations thereof and greater than 0% to less than 4% of one or more functional monomers;
• at least one thickener to increase the viscosity of the composition, wherein the at least one thickener is present in an amount of less than 10% by weight based on the total weight of the composition and includes a polyacrylate thickener;
• and
• a surfactant, wherein the polyacrylate thickener comprises sodium polyacrylate.

A sound damping composition, comprising:

• 47 to 70 parts by weight of a polymer derived from greater than 80% of one or more monomers selected from the group consisting of butyl acrylate, 2-ethylhexyl acrylate, methyl acrylate, ethyl acrylate, vinyl acetate, and combinations thereof and greater than 0% to less than 10% of one or more monomers selected from (meth)acrylonitrile, methacrylic acid, acrylic acid, vinylsulfonic acid, itaconic acid, hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, diacetone-acrylamide, and combinations thereof, wherein the polymer has a Tg of from −10° C. to −50° C. ;
• a polyacrylate thickener;
• a polyurethane thickener, and
• a surfactant;
• wherein the total amount of thickeners in the composition is 2 parts by weight or less, and
• wherein the viscosity of the composition is from 7,000 cP to 15,000 cP at a temperature of 23° C., wherein the polyacrylate thickener comprises sodium polyacrylate.