The two most common types of flagstone sealers are silane-siloxane water repellent sealers and acrylic sealers. Silane-Siloxane water repellent sealers are the best sealer to use on flagstone. They won't change the look or color of the flagstone and they won't leave behind a visible surface film.
How do you seal a flagstone floor?
After grout clean up and drying apply sealer to stone and grout. If using Film Forming type sealer; apply 2 or more thin even coats. Allow sealer to dry 1-3 hours between coats, following individual label directions. If using Penetrating type sealer; apply liberal coat.
How do you clean and seal flagstone?
https://www.youtube.com/watch?v=eUGpZJEeQIA
Is there a sealer for flagstone?
Sealing Flagstone A sealer fills the pores in the stone and repels spills. However, be careful to avoid sealers with a glossy finish because this can compromise the natural beauty of stone. Plan to use a penetrating acrylic sealer with a matte finish so that water and oils bead up when they land there.
Does sealing flagstone keep it from flaking?
To help prevent spalling, outdoor flagstone should be coated with a sealer specifically formulated for natural stone. The sealer inhibits water from getting into and under the surface of the flagstone. If your patio has begun to shed layers, Lesslie says, remove loosely clefted pieces before sealing.Jul 9, 2011