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   How to:  Clean  |  Seal  |  Restore

           Limestone: Sawn "soft" Finish           

Sealing - Cleaning - Problem Solving - Protection - Care

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home of limestone                   limestone  

limestone with shells   limestone     limestone pool deck  

limestone building cladding                 limestone stair treads
A timeless, soft feeling stone.  It has an extremely absorbent and grainy finish that benefits greatly from one of our sealers that strengthens, as well as protects.

There is no need for confusion or problems brought about by misidentification of a surface type, yet it happens all too often. If you would like to see why this is the case and how to properly identify a surfacing material ..... Click here

If you are concerned about doing it yourself - consider that the satisfaction of a project is directly related to your knowledge of what needs to be done and how. Who actually does the work is less important. We estimate that 25% of the usage of Aldon products is by "do it yourself" homeowners and we know they are happy because we hear from them.

MATERIAL DESCRIPTION - With Identifying Characteristics
Typical absorption range = low to medium

Testing your surfacing for absorption rate

Testing for acid sensitivity

Note this on your worksheet for later reference

See the pages for honed and polished limestone to see the considerable difference of a sawn type finish.

This stone is very absorbent, and therefore, very prone to staining. However, this is easily prevented by a sealer.

The stone can also be reinforced by using a sealer classified as "densifying" in How To Choose The Best Sealer For Your Project .


limestone pool deck
  • Provides a classical look.
  • Provides a "soft" look and feel.
  • Colors can be deep and rich depending on sealer
  • Many choices for finishing gloss - from none to high gloss depending on the sealer and number of applications.
CONSIDERATIONS      (All Are Preventable!)

(Click links for Aldon's solutions to these issues!)

  • Surface texture will trap grout smears.  Do not use a sealer as a grout barrier (pre-seal). Prevent grout smears, surface scratching and keep grout residue out of surface texture by coating with Aldon "Grout Easy" before grouting. "Grout Easy" is a water soluble coating that comes off easily while grout is being cleaned up with water and a sponge. Note: acid based "grout scum removers" can etch limestone.
  • Acids will dissolve limestone, therefore, never use muriatic acid for cleaning or stain removal.  It will create etching and/or white stains.  Test Aldon Grout Residue Remover/Brick and Block Cleaner diluted for removing very bad stains.
  • Efflorescence (subsurface originating white powdery stains) can occur. This can appear even before installation. However, it is easily cleaned.
  • Colors can "fade". The appearance of fading is actually from light efflorescence and can be stopped by sealing with the appropriate Aldon sealer.
  • Can scratch during installation, however, one of the "solvent-penetrating" sealers tends to make the scratches disappear.
  • Some limestone quarriers warn of potential alkali staining. This is characterized by a brown, rusty color on buff colored stone and a gray-brown color on gray stone. These usually appear during, and shortly after, construction. They are composed of water soluble materials in the underlying concrete being carried to the surface by subsurface moisture. This is the same process as efflorescence and should be preventable the same way. That is, by sealing with one of Aldon's penetrating sealers as soon as possible, and in the deep penetration technique described on the label. This will create a barrier below the surface that should stop the passage of the alkali salts to the surface. The use of a waterproofed setting bed mortar will further reduce the risk of alkali staining.

Following are recommendations for products you may need (in sequence of use ) for whichever of the categories applies to you. Please review each and mark your printed worksheet accordingly.

Layed, But Not Grouted

  1.  Grout Easy
  2. Efflorescence            Treatment       
  3. Grout Residue
    (should not be needed after using Grout Easy)     
Grouted, But Not Sealed
  1. Grout Residue
  2.  Efflorescence            Treatment       
  3. .............Sealer ( see below )
  4. Lifeguard
  5. Care ...........

Sealer Has Been Applied

Important! - First - Click here!

  1. Aldon Products Premium Stripper
  2. ...........Cleaners   ?
  3. ...........Sealer ( see below )
  4. Lifeguard
  5. Care ..........

An Aldon sealer does far more than just bead water and look pretty! To see what that is click here.

Of all the sealers Aldon manufactures, the ones shown are recommended as best suited to this surface type. (Important: If your project has had any sealer applied in the past, it must be evaluated differently. To see why, Click here!)

"Same Day Sealer"
Water Based - Penetrating Type

  • No change to color
  • No gloss
"Crystal Glaze Sealer"
Water Based - Coating Type

  • High Gloss
  • Some color enhancement.

"S-B-S Sealer"

Solvent Based - Penetrating Type

  • Some Color Enhancement
  • Typically no gloss on a material this absorbent
  • Reinforces softer materials

"Porous Stone Sealer"

Solvent Based - Penetrating Type

  • Formulated for these high absorbency stones.
  • High Gloss with buildup of applications
  • Color Enhancing
  • Reinforces softer materials


Solvent Based - Penetrating Type

  • Use for the extremely porous stones to use fewer gallons.
  • Highest solids content
  • High Gloss with buildup of applications
  • Color Enhancing
  • Reinforces softer materials


Other care products you might need for this surface type



Dust Whiz

* Note:       will add another level of gloss to any of the above sealed surfaces.
It also prevents traffic wear to the sealers finish.

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Intermountain Childrens Home
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Intermountain Children's Home





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