Removing Grease Stains From Ceramic Tile
- Procedure code:
- Hspg Prepared For Nps - Sero
- Ceramic Tile
- Last Modified:
REMOVING GREASE STAINS FROM CERAMIC TILE
THE CLEANING OR REMOVAL OF STAINS FROM TILE MAY INVOLVE THE USE OF
LIQUIDS, DETERGENTS OR SOLVENTS WHICH MAY RUN OFF ON ADJACENT
MATERIAL, DISCOLOR THE TILE OR DRIVE THE STAINS DEEPER INTO POROUS
TILE. USE THE PRODUCTS AND TECHNIQUES DESCRIBED HERE ONLY FOR THE
COMBINATIONS OF DIRT/STAIN AND TILE SPECIFIED.
A. This procedure includes guidance on removing grease
stains from ceramic tile.
B. See 01100-07-S for general project guidelines to be
reviewed along with this procedure. These guidelines
cover the following sections:
1. Safety Precautions
2. Historic Structures Precautions
4. Quality Assurance
5. Delivery, Storage and Handling
6. Project/Site Conditions
7. Sequencing and Scheduling
8. General Protection (Surface and Surrounding)
These guidelines should be reviewed prior to performing
this procedure and should be followed, when applicable,
along with recommendations from the Regional Historic
Preservation Officer (RHPO).
A. The Procter & Gamble Co.
NOTE: Chemical products are sometimes sold under a common
name. This usually means that the substance is not as pure as
the same chemical sold under its chemical name. The grade of
purity of common name substances, however, is usually adequate
for stain removal work, and these products should be purchased
when available, as they tend to be less expensive. Common
names are indicated below by an asterisk (*).
A. Sodium Carbonate (Na2CO3):
1. A sodium salt of carbonic acid used especially in
making soaps and chemicals, in water softening, in
cleaning and bleaching and in photography; A
hygroscopic crystalline anhydrous strongly alkaline
2. Other chemical or common names include Carbonate of
soda*; Sal soda*; Soda*; Soda ash*; Washing soda*.
3. Potential Hazards: CORROSIVE TO FLESH
4. Available from chemical supply house, grocery store
or supermarket, hardware store, paint store or
water and sanitation supply distributor.
Sodium Hydroxide (NaOH): (as alternative)
1. A white brittle solid that is a strong caustic base
used especially in making soap, rayon, and paper.
2. Other chemical or common names include Caustic
soda*; Hydrate of soda*; Hydrated oxide of sodium*;
Lye*; Mineral alkali*; Soda lye*; Sodic hydrate*;
3. Potential Hazards: CORROSIVE TO FLESH AND
FLAMMABLE (WHEN IN CONTACT WITH ORGANIC SOLVENTS).
4. Available from chemical supply house, drugstore or
pharmaceutical supply distributor, hardware store,
or paint store.
B. Neutral pH Detergent such as "Orvus" (Procter and
Gamble), or approved equal, using dilution as determined
by tests on material to be cleaned.
C. Clean, potable water
A. Clean natural fiber rags
B. Garden hose and pneumatic spray nozzle
C. Stiff bristle brushes (no iron wire)
D. Wood scrapers, knife blades and spatulas
A. Examine the ceramic tile surface carefully to determine
the type and cause of staining before proceeding with any
3.02 ERECTION, INSTALLATION, APPLICATION
A. Mix 10% sodium carbonate in water (use 5% sodium
hydroxide or caustic soda if required).
B. Wash the surface with the solution using a stiff bristle
brush; Allow the mixture to remain on the surface for
approximately 1 hour.
C. Rinse thoroughly with clean, clear water and allow to
D. Repeat the process as required to achieve the desired
level of cleanliness.
END OF SECTION