When it comes to wood finishing, one of the key decisions you have to make is choosing between polyurethane and polycrylic. While they may sound similar, these two products have notable differences that can affect the outcome of your project. In this article, we’ll explore the distinctions between polyurethane and polycrylic, and discuss when and how to apply each one.
The Difference Between Polyurethane and Polycrylic
The primary difference between polyurethane and polycrylic lies in their composition. Polyurethane is oil-based, while polycrylic is water-based. This fundamental distinction has various implications when it comes to selecting the right product.
Consider the Type of Paint Product Used
The first thing to consider when choosing between polyurethane and polycrylic is the type of paint product you used or plan to use. If you applied an oil-based paint, it is recommended to use oil-based polyurethane. On the other hand, if you used a water-based paint, polycrylic is the more suitable choice.
The Color and Finish
Both polyurethane and polycrylic have slight color variations once dried. Polyurethane tends to have a slightly yellow color, which can be problematic if applied over white paint, as it can give the white surface an ivory yellowish tinge. Polycrylic, on the other hand, dries with a white or bluish tinge, which eventually becomes clear. However, it is worth noting that neither product is suitable for achieving a completely flat or matte finish. They tend to dry with a semi-gloss or glossy appearance.
Cleanup and Durability
Cleanup is another aspect to consider when deciding between polyurethane and polycrylic. Polycrylic offers easier cleanup as it can be cleaned with water and soap. Simply fill up a bucket of water, clean your materials, and you’re done. Polyurethane, being oil-based, requires cleaning with mineral spirits or paint thinner, which can be time-consuming and messy.
In terms of durability, polyurethane is generally stronger and more durable than polycrylic. If you’re refinishing cabinets or any other surface that undergoes heavy wear and tear, it is recommended to use polyurethane for its superior durability. However, if you opt for polycrylic, be prepared to apply more coats to achieve the same level of durability as polyurethane.
Application and Drying Time
Both polyurethane and polycrylic can be applied using a polyester bristle brush or a foam roller. Foam rollers are particularly useful for applying thin, even coats of polycrylic, which is essential for creating a durable protective finish. It is worth noting that polycrylic dries faster than polyurethane. While polyurethane requires 12 to 24 hours between coats, polycrylic only takes about an hour, allowing you to complete your project more quickly.
Toxicity Considerations
Both polyurethane and polycrylic have certain levels of toxicity. It is advisable to wear a mask when working with either product. However, polycrylic is less toxic than polyurethane, making it a more favorable choice for those who are sensitive to strong vapors or suffer from respiratory issues.
When to Use Polyurethane or Polycrylic
There are specific instances when polyurethane or polycrylic is more suitable for a project. Here are some scenarios to consider:
- For projects that require a highly durable finish, such as cabinets or tabletops, polyurethane is the recommended choice.
- If you’re working with a stain that doesn’t have a poly finish, applying polyurethane will help enhance the durability and protect the wood surface from wear and tear.
- When wanting to achieve a completely flat or matte finish, neither polyurethane nor polycrylic are the right options. Consider using other sealants or finishes specifically designed for that purpose.
- For projects where the color integrity is crucial, such as white or lightly colored surfaces, polycrylic is preferable to avoid any color distortion caused by the slight yellow tint of polyurethane.
- If you’re looking for a quick and easy cleanup process, polycrylic is the winner. Its water-based nature allows for simple cleaning with water and soap.
Remember that personal preference and the specific requirements of your project may also guide your choice between polyurethane and polycrylic.
Conclusion
In summary, choosing between polyurethane and polycrylic depends on various factors such as the type of paint used, desired color and finish, cleanup preference, and level of durability required. Understanding the differences between these two wood finishing products will help you make an informed decision on which one to use for your specific project. Whether you choose polyurethane or polycrylic, following proper application techniques and allowing sufficient drying time will ensure a professional-looking and long-lasting finish.
