Waterborne epoxy coatings contain water as the primary solvent and other cosolvents, which is up to 30 wt.% of the total solvent, making the coating environmentally friendly (80%). A reduced solvent content leads to low toxicity, low volatile organic compound (VOC) emission, and no flammability. Despite these advantages, water-borne coatings have several disadvantages, such as longer curing times, lower coating thickness ranges, and lower thermal stabilities. Hence, several additives are incorporated into the epoxy matrix to enhance the characteristic properties of the coating. The additives used are carbon black, boron nitride, barium sulfate, graphite, red iron oxide, yellow iron oxide, and various nanoparticles, such as nanosilica, nanoalumina, nanozirconia, and nanotitania. The incorporation of nanoparticles into the coating leads to an increase in the optical, mechanical, thermal, and hydrophobic properties. When nanotitania is added to the matrix, it transforms NOX and ozone into harmless compounds. The incorporation of iron oxides increases the mechanical and thermal properties of coatings with a unique particle alignment, which prevents the penetration of moisture. Carbon black is used as a UV stabilizer, which improves the characteristic properties of the coating. When graphite is added to the epoxy coating matrix, it enhances the characteristic properties by increasing the strength and rigidity of the coating. When epoxy is added to barium sulfate, it develops radio-opaque properties, which are resistant to X-rays. Boron nitride filler is used to increase the thermal properties of the coating.