Coated substrates prepared with waterborne sealer and primer compositions

A multilayer coated substrate comprising:

• A) a substrate;
• B) a primer composition applied directly to a surface of the substrate, forming a first coating of the primer composition;
• C) a sealer composition applied directly to a surface of the first coating of the primer composition;
• and
• D) at least one topcoat comprising a colored coating composition applied on top of the sealer composition;
• wherein the primer composition comprises a waterborne curable film-forming composition having a total solids content of at least 50 percent by weight, the waterborne curable film-forming composition comprising:
• a) a first component comprising an aqueous dispersion of a pigment and
• i) polymeric urethane-shell particles having a core-shell morphology and having hydroxyl functional groups, wherein the core of the polymeric urethane-shell particles is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and wherein the shell of the polymeric urethane-shell particles comprises a polyurethane or polyurethane-urea polymer;
• or
• ii) polymeric acrylic-shell particles having a core-shell morphology and having hydroxyl functional groups, wherein the core of the polymeric acrylic-shell particles is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and wherein the shell of the polymeric acrylic-shell particles is prepared by organic solution polymerization from a monomer mixture comprising hydrophilic, ethylenically unsaturated monomers;
• b) a second component comprising a polyisocyanate crosslinking agent;
• and optionally
• c) a hydroxyl functional, water dispersible acrylic polymer.

A multilayer coated substrate comprising:

• A) a substrate;
• B) a first composition comprising a primer or sealer composition applied directly to a surface of the substrate, forming a first coating;
• and
• C) at least one topcoat applied on top of the first coating;
• wherein the first composition comprises a waterborne curable film-forming composition having a total solids content of at least 50 percent by weight, the waterborne curable film-forming composition comprising:
• a) a first component comprising an aqueous dispersion of a pigment and
• i) polymeric urethane-shell particles having a core-shell morphology and having hydroxyl functional groups, wherein the core of the polymeric urethane-shell particles is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and wherein the shell of the polymeric urethane-shell particles comprises a polyurethane or polyurethane-urea polymer;
• or
• ii) polymeric acrylic-shell particles having a core-shell morphology and having hydroxyl functional groups, wherein the core of the polymeric acrylic-shell particles is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and wherein the shell of the polymeric acrylic-shell particles is prepared by organic solution polymerization from a monomer mixture comprising hydrophilic, ethylenically unsaturated monomers;
• b) a second component comprising a polyisocyanate crosslinking agent;
• and optionally
• c) a hydroxyl functional, water dispersible acrylic polymer;
• wherein when the first composition comprises a primer composition, the first coating is applied in no more than two coats and demonstrates a dry film thickness of 50 to 150 microns, and when the first composition comprises a sealer composition, the first coating composition is applied in no more than two coats and demonstrates a dry film thickness of 20 to 50 microns.