There has been quite a bit of "buzz" about polyurethane form otherwise known as Poly lifting/jacking/leveling as a substitute for cementitious grout generally pumped with original traditional mudjacking. Before you jump on that bandwagon, we would like to share some vital information about polyurethane foam that should change your mind. Our sources for this information comes from: www.epa.gov www.osha.gov www.nist.gov
www.cdrecycling.org Polyurethane foam is a byproduct processed from crude oil. Main ingredients are polyois and diisocyanate, both of which are identified as carcinogens and listed as Toxic Substances by EPA. Other ingredients and exposure to its contaminants toluene diisocyanate, methylene chloride, hydrogen cyanide, Iscyanates are known neurotoxins or carcinogens causing cancer in animals. Polyurethane (even best foam) breaks down in 10-12 years under normal conditions.
Let's look at the claims made about polyurethane and compare them to the facts about cementitious grout.
Proven Quickest, Efficient, and Most Effective Controlled Jacking Method of Repairing Sunken Concrete! Less hassle, Less down time. Immediate use, once it is restored and realigned by Traditional Mudjacking.
Waiting for chemical reaction to occur. If mixed incorrectly can be toxic. As seen, this newest poly system may not raise the uneven concrete enough and/or over lift the panels attempting to jack or level them.
