Uneven curing is another issue. It'd be on account of wrong mixing or temperature problems. Make sure you blend accurately and continue to keep the temperature steady. Polyester epoxies are employed as powder coatings for washers, driers as well as other "white goods". Fusion Bonded Epoxy Powder Coatings (FBE) are https://www.propanraya.com/id/produk/epoxy-fast-dry