Aerosol primer composition and method of use

A method of priming a substrate to be painted or stained, comprising:

• dispensing a primer composition onto a surface of the substrate from a pressurized container, wherein the primer composition comprises:
• a film forming component comprising (by weight of the composition):
• (a) at least one of a polyurethane and alkyd from about 10% to about 20%,
• (b) cellulosic particles from about 2% to about 5%, and
• (c) an aqueous solvent system from about 20% to about 40%;
• and
• a propellant component comprising dimethyl ether,
• wherein the dispensing is conducted such that the propellant evaporates as the primer composition is dispensed from the pressurized container and the film forming component defines a coating on the surface of the substrate.

A spray assembly for an aerosol primer composition, comprising:

• a container defining a chamber configured to hold an aerosol primer composition at a pressure above ambient pressure;
• a dispensing spray outlet fluidly coupled with the chamber for dispensing the aerosol primer composition from the chamber;
• and
• an aerosol primer composition comprising:
• a film forming component comprising (by weight of the composition):
• (a) at least one of a polyurethane and alkyd from about 10% to about 20%,
• (b) cellulosic particles from about 2% to about 5%, and
• (c) an aqueous solvent system from about 20% to about 40%;
• and
• a propellant component comprising dimethyl ether,
• wherein the propellant component comprises a propellant selected to pressurize the film forming component within the chamber.