Sealing Stone & Grout
SEALING THE STONE
PRODUCTS:
- Stone Spray-N-Seal® (Stone & Grout Sealer, Water-based)
- Grout Lock™ (Aerosol Grout Sealer)
- Dust Mop
Reason: Penetrating sealers, also know as impregnators, protect the interior of the stone by penetrating through the surface and bonding to the inside of the stone. They act as a repellent to prevent contaminants from absorbing into the stone.
Summary: The most important part of stone is the interior. A penetrating sealer should be applied to protect the interior of the stone. Mineral surfaces are very porous and act like a sponge in the presence of moisture and fluids. Without it, liquids can be absorbed into the stone thus causing corrosion, staining, and discoloring.
ADVANTAGES:
- Penetrating Sealer will increase the coefficient of friction thus creating a more slip resistant surface.
- Allows the stone to breath and release water vapor transmission which prevents erosion.
- Does not yellow.
- Prevents the growth of organic staining (mold, mildew).
- Stone Spray-N-Seal® is an excellent grout release because it prevents adhesion and penetration to the stone.
PROCEDURES:
Polished or Honed Surface:
- Floor surface must be dust mopped to remove all grit and debris.
- All topical coatings should be stripped off with STONE STRIPPER (Solvent based coatings should be removed with a solvent based stripper.)
- Follow stripping with a deep cleaning with STONE QUEST to clean out the pores of the stone. Use a soft bristled brush with this procedure.
- Surface must be rinsed with MARBALEX cleaner to reduce any alkali or acidic residue and to remove any surface soils.
- Be sure that the surface is dry for at least twelve hours.
- Apply the sealer using a new dust mop in a figure eight motion.
- If excess remains on the surface after five minutes, buff off with an all white bonnet pad.
- Always use a new bucket and wringer.
- Apply yearly in high traffic areas.
*If there are no coatings on the surface, begin the procedures with a thorough dust mopping and a rinse with MARBALEX.
Rough or Textured Surface:
- Apply STONE SPRAY-N-SEAL®.
- Sweep off all of the grit and debris with a push broom.
- Remove all topical coatings with STONE STRIPPER.
- Deep clean using STONE QUEST with a soft bristled brush after stripping.
- Rinse the surface with MARBALEX.
- Be sure that the surface is dry for twelve hours.
- Apply STONE SPRAY-N-SEAL® with a pump sprayer.
- Let application dry completely.
Vanity Tops or Wall Surfaces:
- Clean surface from any grit or debris.
- Remove all topical coatings with STONE STRIPPER.
- Rinse the surface with MARBAMIST.
- The surface must be dry for twelve hours before application.
- Apply the STONE SPRAY-N-SEAL® using a clean terry cloth towel.
- After five minutes, wipe off the excess with a soft, white terry towel.
Grout:
- Remove all grit and debris from the surface.
- Remove all topical coatings with STONE STRIPPER.
- Deep clean the pores using STONE QUEST with a a soft bristled brush.
- Lightly rinse the surface with MARBALEX.
- Grout must be dry for twelve hours before application.
- Dab or brush STONE SPRAY-N-SEAL® onto the grout and let it dry.
- After five minutes, remove any excess that remains on the surrounding surface.
Grout Release:
- Install the stone with the proper setting materials.
- Remove all grit and debris from the surface.
- Remove all topical coatings with STONE STRIPPER.
- Lightly rinse the surface with MARBALEX.
- Apply STONE SPRAY-N-SEAL to the stone following the SCI application procedures.
- Apply grout to the joints.
- Wipe off remaining residue with MARBALEX using a mop or sponge application.
OBSERVATIONS:
- If the sealer is absorbed within five minutes apply a second coat at least one hour later.
- If the sealer is not completely absorbed after five minutes, wipe off excess with a clean dry terry cloth towel or an all

