Typical polyurethane foams have the following resistance towards the listed chemical compounds.
ENVIRONMENT APPEARANCE
Ethylene Glycol (100%)............................................. No change
Isopropanol (100%).................................................... No change
Heptane (Gasoline) (100%)....................................... No change
J P- 4 through 8 fuel (100%)..................................... No change
Carbon tetrachloride (100%)..................................... Slight Darkening
Methyl Ethyl Ketone (100%)...................................... Swelled 20-30%
Toluol (100%)............................................................. No change
Hydrochloric (2%)...................................................... Moderate darkening & slight fragmentation
Acetic (2%)................................................................ No change
Sulfuric (2%).............................................................. Moderate darkening - Intact
Sodium Hydroxide (1%)............................................ Moderate darkening & slight fragmentation
Potassium Hydroxide (1%)........................................ Moderate darkening - 25% dissolved
Sodium Chloride (Salt Water).................................... No change
Ammonium Sulfate (2%)........................................... No change
Potassium Chlorate (5%)........................................... No change
AQUACUT AQUAFLEX
Hydroxide (ph 13) No influence No influence
Sodium Carbonate (ph 13) No influence No influence
Phosphoric Acid (22%) No influence Slight absorption
Gasoline No influence Slight absorption
J P - 4 through 8 fuel (100%) No influence No influence
Nitric Acid Attacked Attacked
Hydrochloric Acid No influence Slight absorption
Lactic Acid No influence Slight absorption
Acetic Acid No influence Slight absorption
Toluene No influence Slight absorption
Sodium Hydroxide (Saturated) No influence Attacked
Water No influence No influence
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Pressure Grouting 
