... concrete, marble, granite and other building materials Description:tow-component product, nerual solidification, excellent adhesion to metal,coated glass, ... A,black to B,mixture colot is dark-grey.Package:A:190L iron barrel, B:19L iron barrel. ... .Feature: 1the product must be used special tow-component extrder2neutral solidification,non-corrosiveness to materials3excellent thermostable ability and ...