Yes, it can happen. Osmotic Blisters can occur in urethane cement applications. But here’s how to avoid it.
Osmotic blisters are known to egregiously affect epoxy flooring applications. They make unsightly little bumps in the finish, causing unhappy customers and project managers.
But urethane cement was invented and did a great job sealing the exposed concrete. And for the most part, urethane cement does an excellent job stopping blisters from forming.
And that’s because it can tolerate a very high PSI. Compared to epoxy’s 3 PSI, urethane cement can withstand up to 20 lbs per square inch, making it almost 7 times stronger.