Does Polyurethane Stick to Concrete

Though polyurethane has many advantages over epoxy, it does not bond well to concrete and its thin dry film thickness will not work well as a self-leveling coating. Another consideration is that most polyurethanes are solvent based, meaning they can have high VOC’s, and may require a respirator to apply.

Can you use polyurethane over concrete?

Polyurethanes sealers are nearly twice as thick as an acrylic sealer and form a high-build protective film on the concrete surface that provides excellent resistance to abrasion and chemicals. … They can be used on both interior and exterior concrete to impart a transparent, non-yellowing, highly durable finish.

How do you apply polyurethane to concrete?

1. Mop the floor with odorless mineral spirits. …
2. Stir the polyurethane slowly, with a wooden paint paddle, until it is clear all the way to the bottom of the can. …
3. Pour a small amount of polyurethane onto the floor beginning in one corner of the space. …
4. Pour more finish once you have spread the first amount thoroughly.