Removing Coffee Stains From Terrazzo Floors
- Procedure code:
- Developed For Hspg (Nps - Sero)
- Last Modified:
REMOVING COFFEE STAINS FROM TERRAZZO FLOORS
A. This procedure includes guidance on removing coffee
stains from terrazzo floors.
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).
C. For general information on the characteristics and
maintenance of terrazzo, see 09400-01-P.
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 (*).
1. A sweet syrupy hygroscopic trihydroxy alcohol
usually obtained by the saponification of fats and
used especially as a solvent and plasticizer.
2. Other chemical or common names include Glycerol;
Glyceryl hydroxide; Glycyl alcohol; 1,2,3-
propanetriol; Propenyl alcohol.
3. Potential Hazards: FLAMMABLE.
4. Available from chemical supply house, drug store or
B. Clean, potable water
A. Wooden Paddle or Trowel
B. Shallow Enameled Pan
A. Examine the terrazzo surface carefully to determine the
cause of staining before proceeding with any cleaning
3.02 ERECTION, INSTALLATION, APPLICATION
NOTE: THE FOLLOWING TREATMENT SHOULD BE USED BY TRAINED AND
EXPERIENCED PERSONNEL. IMPROPER USE MAY RESULT IN BLEACHING
THE TERRAZZO MATRIX, IF A COLOR DYE WAS ADDED AT THE TIME OF
INSTALLATION. TEST BEFORE PROCEEDING.
A. Saturate a cloth in glycerine diluted with 4 times its
volume in water and apply to stain.
B. Thoroughly the surface with clean, clear water and allow
C. Repeat the process as necessary to achieve the desired
level of cleanliness.
Note: See also treatment for blue ink stains for other stain
removing solutions, 09400-01-R.
END OF SECTION