IMPORTANT: MSDS comment you need to read and understand before reviewing MSDSs.
All the SX testing was done on the final mixed Part A and B. When parts A and B are mixed no special breathing equipment is necessary. A person reading just the Part B SDS might think differently.

Please refer to the table below to see the summary of the testing done by an independent testing company. The tests were on the final product (mixed Parts A and B). See Note 1 Indicates no free monomers go into atmosphere from the isocyanate. It shows the ASTM test number.