Protecting wood’s natural beauty requires the right sealer or finish. Two of the most popular options are polycrylic and polyurethane, both offering durable protection for wood, floors, concrete, and metal—whether indoors or exposed to the elements. While their names sound alike, they differ in application, finish, cleanup, and longevity.
What Is Polycrylic?
Polycrylic is a water-based product used to finish wood, metal, and concrete. Available as a liquid or aerosol spray, it is less toxic than oil-based polyurethane. It dries faster, cleans up easier with water, and has a lower odor because it contains fewer Volatile Organic Compounds (VOC).
When dry, polycrylic provides durable rich satin or glossy finishes. Minwax is the only company that manufactures polycrylic.
What Is Polyurethane?
Polyurethane is made from synthetic resins. Originally developed as a protective finish for wood, it can be used over painted surfaces, concrete, and metal. It is highly flammable and should only be applied in well-ventilated areas while wearing a respirator.
The best-known manufacturers of polyurethane finishes include Varathane, Rust-Oleum, Minwax, and Behr.
Side By Side Comparison
| Polycrylic | Polyurethane | |
|---|---|---|
| Appearance | Clear (Possible milky white appearance). | Clear (Often turns amber over time, enhancing the look). |
| Application | Brush or aerosol. Dries quickly. Often dries too quickly to allow for smooth even finish on large projects. Runny. Difficult to apply on vertical surfaces. | Brush or aerosol. Easy to apply on most surfaces. Slow drying time allows smooth clean level finishes. |
| Availability | Home building centers, paint stores, online. | Home building centers, paint stores, online. |
| Clean Up | Warm water and soap. | Water-based. Clean with warm water and soap. Oil-based. Clean with mineral spirits |
| Coats | 2 -3 coats. | 2 – 3 coats. Oil-based product requires… |