Does natural stone need to be sealed?

In short, all natural stone surfaces need to be sealed periodically. This is because stone is naturally a porous material and can absorb bacteria, food particles, and liquids that we use throughout our home.

Source – tileprodepot.com

Best natural stone sealer – Tileprodepot
Natural stone sealer products is a wonderful way to add class and elegance to customer homes. Whether it be granite, marble, slate, travertine, limestone, it makes an impacting addition to bathrooms, kitchens, living rooms, and outdoor spaces.
What’s the best sealer for natural stone?
The Best Stone Sealer for Limestone, Marble, Travertine, Slate, Granite And Other Stone Tiles And Slabs.
How long does stone sealer last?
Of course, porosity of the stone and sealer quality can vary, but most granite countertop sealers should last 3-5 years and some are rated for 10 years if the stone is diligently and properly cared for.