| abstract |
The present invention is a heat-insulating coating material containing a resin emulsion (A), hollow beads (B) having an average particle diameter of 1 to 300 μm, and a thickener (C), wherein the compounding amount of the hollow beads (B) is 20 to 98% by volume in the solid content of the heat insulating coating material, 0.01 to 5% by weight of the thickener (C) in the solid content of the heat insulating coating material, and a viscosity of 2 to 100 Pa · s. To (I) a roller having a porous shape, or (II) A heat-insulating coating finishing method characterized by forming a thick-film uneven coating surface by coating once or more using a spray coating gun having a nozzle diameter of 0.3 to 15 mm. |