| abstract |
(57) Abstract: A foam-type automotive undercoat agent containing a vinyl chloride-based resin, a foaming agent, a filler, and a plasticizer, the moisture-absorbing foam inhibitor having an average particle size of 0.5 μm or less. , An undercoat agent for automobiles, characterized by containing unexpanded microcapsules. The foam-type undercoat agent for automobiles of the present invention does not cause blistering in the coating film even when left for a long time after coating, and has both good chipping resistance and soundproofing. Can be formed. |