I don't know if you recall my question about repairing a crack in the cement window sill of our house. You recommended a 'good' single polymer caulking compound. We have a tube of polyurethane concrete and masonry sealant and would like to know if this qualifies as a good quality polymer. In addition, my father would like you to recommend a particular polymer brand you had in mind.
Answer:
As long as what you have stipulates that it is "Single polymer" product, it will work.
