Should there be concern that polyurea contains isocyanate?
Polyurea products from VersaFlex are based on diphenylmethane diisocyanate (MDI) or 1,6 hexamethylene diisocyanate (HDI) polymer technology. These polymers have a low vapor pressure which corresponds to a low evaporation rate. During the mixing, installation and curing process of all polyurea, the release of any free monomers is virtually non-existent. The chemical design of these products entails an extremely rapid reaction between the molecules in each component. This rapid reaction coupled with the lack of any evaporative characteristics allows these products to fall well within safety guidelines established under OSHA and ACGIH. The installation of these products may be made in incidental food contact locations and are certified under the FSIS procedures of the USDA. Self-leveling polyurea products have been tested under field conditions during application for CalTrans (California Department of Transportation), with the detection of no free molecules in the environment. Review of M
