Organosilicate coatings containing dibasic aluminophosphate for heat resistant electrical insulation

Two compositions of heat-resistant electrical insulating organosilicatephosphate coatings are developed with the use of debased aluminophosphate Al2(HPO4)3 · 2.5H2O in the composition. The coating has resistance of 600 and 700°C and thermal shock resistance from the maximum allowable to–60°C. Electrical insulating and various physical and mechanical properties of the coatings are determined.