Installation Guide

ManualsBrandsMAPEI ManualsGrout40952

Resistance to chemicals depends on the concentration, temperature and

duration of exposure. For long-term durability and improved grout appearance,

clean up spills immediately after they occur.

Laboratory tests reveal variable resistance to certain chemicals. The following

table may be considered as a general guide for Kerapoxy CQ applications at

73°F (23°C).

For recommendations regarding chemicals not listed or concentrations

exceeding the levels stated, contact MAPEI’s Technical Services Department.

Legend

++ Excellent resistance

+ Good resistance; long exposure could cause some deterioration;

clean surface rapidly with water

- Poor or no resistance

CHEMICAL RESISTANCE (tested according to ISO 13007)

Product Types Concentration Laboratory Long Time Short Time

ACIDS

Vinegar 2.5% ++ ++ ++

5% ++ + ++

10% - - -

Hydrochloric acid 10% ++ ++ ++

Chromic acid 20% - - -

Citric acid 10% ++ ++ ++

Formic acid 2.5% ++ ++ ++

10% - - -

Lactic acid 2.5% ++ ++ ++

5% ++ + ++

10% + - +

Nitric acid 10% ++ + ++

50% - - -

Phosphoric acid 50% ++ ++ ++

75% + - +

Sulfuric acid 1.5% ++ ++ ++

10% ++ ++ ++

96% - - -

Tannic acid 10% ++ ++ ++

Oxalic acid 10% ++ ++ ++

Oleic acid - - -

BASE AND SALT SOLUTIONS

Ammonia solution 25% ++ ++ ++

Caustic soda 50% ++ ++ ++

Hypochlorite solution

• Act. CL 6.4 g/L ++ + ++

• Act. CL 165 g/L - - -

Sodium hyposulfite ++ ++ ++

Calcium chloride ++ ++ ++

Iron chloride ++ ++ ++

Sodium chloride ++ ++ ++

Sodium chromate ++ ++ ++

Sugar ++ ++ ++

Aluminum sulfate ++ ++ ++

Potassium permanganate

5% ++ + ++

10% + - +

Caustic potash 50% ++ ++ ++

Hydrogen peroxide 1% ++ ++ ++

10% ++ ++ ++

25% ++ ++ ++

Sodium bisulfite ++ ++ ++

OILS AND COMBUSTIBLE PRODUCTS

Gasoline ++ ++ ++

Turpentine ++ ++ ++

Diesel fuel ++ ++ ++

Peanut oil ++ ++ ++

Tar ++ + +

Olive oil ++ ++ ++

Heating oil ++ ++ ++

SOLVENTS

Acetone - - -

Ethylene glycol ++ ++ ++

Glycerol ++ ++ ++

Methylcellosolve - - -

Perchloroethylene - - +

Carbon tetrachloride + - +

Chloroform - - -

Methylene chloride - - -

Toluene - - +

Carbon disulfide + - +

Mineral spirits ++ ++ ++

Benzene - - +

Trichloroethane - - -

Xylene - - -

Kerapox

Kerapoxy