https://glamourhome.com/2022/01/can-you-apply-sealant-to-both-old-and-new-concrete/ The use of concrete sealants is an effective method to extend the life span of concrete. It blocks corrosive staining and other substances from setting in concrete. Concrete is porous and can easily be stained. The porous nature of concrete means that water will easily penetrate the concrete and lead to its weaknesses. Concrete…