How to calculate the consumption of dry powder putty? Theoretical consumption: 0.8 ~ 1 kg / square meter (batch scrap thickness 0.5mm ~ 1mm, once) dry powder putty dosage = theoretical consumption × batch scraping putty area batch putty area = room building area × (2.5 ~ 3)5When the putty is scraped, why should the construction temperature be above 5 °