Polyurea FAQ's




Q? WHAT IS POLYUREA?
A. Polyurea is an organic polymer that is the reaction of isocyanate with an amine terminated polyether resin, forming a plastic-like or rubber-like compound that may be used in many of the same ways as older technologies – polyurethane, epoxy, vinyl ester, neoprene; to name a few.




Q? WHERE CAN POLYUREA BE USED?
A. As a general rule, ArmorThane Polyurea can be employed to contain any substance that may be directly discharged into conventional sanitary sewer systems. It may be easier to give examples of environments where Polyurea should not be used. As a general recommendation for constant exposure to direct chemical attack ArmorThane polyurea products may not be installed for attack by:
Halogenated Solvents:
1. Carbon tetrachloride
2. Chloroform
3. Methylene chloride
4. Tetrachloroethane
5. Trichlorethene
6. Trichloroethane
Non-Halogenated Solvents And Ketones:
1. Acetone
2. Acetonitrile
3. Acetophenone
4. Benzene
5. Butanol
6. Camphor oil
7. Cyclohexanone
8. Diethylether
9. Diisobutyl ketone
10. Ethyl acetate
11. Hexane
12. Methyl ethyl ketone
13. Methyl isobutyl ketone
14. Pentane
15. Phenol
16. Toluene
17. Xylene
Acidic compounds with a complete composite pH range equal to or below 4 Basic compounds with a whole composite pH range similar to or above 11 Note: Polyurea may contain Non-aqueous (anhydrous and anhydride compounds in granular, crystalline, or powder form) protected by an air drying system. Consult ArmorThane. Amine Attacking And Amine-Containing Compounds Strong, inorganic acids, organic acid halides, aldehydes, isocyanates, organic anhydrides. 1. Aminoethylethanolamine 2. Aniline 3. Ethylamine 4. Methylamine 5. Pyridine 6. Toluenediamine





Q? CAN ANYONE APPLY POLYUREA?
A. Polyurea requires specialized training and equipment for field application, whether used as joint filler or as a field applied coating. ArmorThane has an ongoing program of contractor training in place. There are qualified applicators in all regions of the U.S. and an expanding network of qualified
applicators throughout the world.




Q? WHAT TEMPERATURES WILL POLYUREA WITHSTAND?
A. ArmorThane polyureas begin to develop their physical properties within minutes of application. Among several very desirable features are their quick gel time and their glass transition temperatures that average -40 degrees F and +480 degrees F. Heat of deflection under no load is +250 degrees F. Safe
upper limit of working temperature is +350 degrees F, under no pressure. Polyurea will exhibit thermal shock debonding when subject to repeated periodic blasts of live steam. While Polyurea has high glass transition and heat of deflection temperatures, it will burn when exposed to direct flame. It will self extinguish when the fire is removed.

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