In order to prepare 10 kg of mastic, you need about, 5 kg of plasticizer, 8, 5kg bitumen and 1 kg filler. Mastic should keep a temperature of 120 degrees. Or it will decompose. Prepare it as much as you spent in a day, you will have to throw away the rest. And when applying, the mastic immediately cools down, therefore, first of all, you first need to first so primer everything.
