Kinetic research have shown the reactivity of the primary amine for being close to double that with the secondary amine. Utilization of a difunctional or polyfunctional amine kinds A 3-dimensional cross-connected community. Soaked the surface with the solvent acetone within a properly-ventilated area and wait around for approximately an hour. https://www.propanraya.com/id/produk/epoxy-fast-dry