▎ 摘　　要

NOVELTY - Anti-crack heat insulating paint composition comprises 32 wt.% silica sol, 28 wt.% elastic pure milk wave, 15 wt.% sodium-methyl silicate, 10 wt.% nano silicon disulfide, 2 wt.% graphene microchip, 8 wt.% amino resin, 2 wt.% antioxidant, 2 wt.% dispersant and 1 wt.% defoamer. USE - Used as anti-crack heat insulating paint composition. ADVANTAGE - The composition: has excellent crack resistance; and improve the fusion performance of the paint. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing anti-crack heat insulating paint composition comprising (i) mixing silicon dioxide powder and nano-silicon carbide powder in a mass ratio of 1-3:1-5, (ii) taking silicon dioxide and silicon carbide powder with absolute ethanol as dispersion medium, where mass ratio between powder and alcohol is 1:30 and ultrasonically dispersing for 1 hour on an ultrasonic cleaner, (iii) placing ultrasonically dispersed mixture in a nylon ball mill tank, using agate balls as grinding balls, where mass ratio of pellets is 7:1, continuous milling at a speed of 150 revolution per minute for 2-4 hours, (iv) pouring ball-milled powder into powder tray together with the agate ball, drying at 80 degrees C in a oven-202-2, and (v) sieving dried powder, removing the agate ball, mixing powder until no more reunion to obtain final product.