Polymeric article coated with a thermochromic paint

In an article comprising a polymeric material subject to oxidative degradation and having a thermochromic paint thereon, said paint containing a thermochromic pigment comprising a metallic compound, the improvement comprising the addition to the paint of a non-thermochromic compound in amounts effective to inhibit degradation of said polymeric material by the thermochromic pigment, said non-thermochromic compound selected from the group consisting of the sulfates, hydrated sulfates and nitrides of boron, aluminum, tin, lead, arsenic, antimony, bismuth, zinc and phosphorus;

• the sulfides and hydrated sulfides of boron, aluminum, bismuth and phosphorus;
• the oxides and hydrated oxides of boron, arsenic, and antimony and the salts, organic compounds and free acids of the oxyanions of boron, arsenic, and antimony and oxides, salts and organic derivatives of oxyanions of phosphorus.