What is the Difference Between Enhancing & Natural Sealers? 
You have several sealer options available to choose from [we’ll review those in a separate article] available from a home center or tile and stone supply center. The most common are Enhancing and Natural sealers. – Enhancing sealers darken stone and give it a ‘wet’ look. Natural sealers offer the same protection without changing the stone’s appearance. How Do You Apply a Sealer to Travertine? A sealer can be applied to Travertine using a sponge, brush, paint pad, cotton towel or sprayer. – Any sealer that has not been absorbed by the stone in 5 minutes should be removed using an absorbent paper or micro-fiber towel. – Allow at least thirty minutes of drying time between applications if two or more coats are applied. After the final coat, wait two to three hours. -Test the sealer by putting water droplets on the stone; if you notice no water being absorbed, the Travertine has been successfully sealed! – Although a sealed floor can be walked on two hours after applying the sealer, you should typically plan on twenty four hours to completely cure the surface. Definitely keep it dry for at least twelve hours.