The easiest way to make concrete shiny is by applying a glossy concrete sealant according to SF Gate Home Guides. Once concrete is stained and cleaned, water-based acrylic sealer or polyurethane-epoxy sealer can be applied to the concrete.
ConcreteFloorPolishing.org recommends applying sealant to concrete floors a few months after installation and every two years thereafter. Another way to make concrete shiny is through resurfacing. Resurfacing removes old and worn-out concrete. Once the old concrete is removed, the remaining concrete is buffed and polished. While concrete floors take time to wear out, they do need regular cleaning with proper cleaning products. Using the correct cleaning products helps maintain shine and reduce wear on concrete flooring.