Traditional solvent-based mixes have a high VOC content, making them unattractive choices for health reasons. The newer water-based lacquers lack the luster that lacquer is known for. Nitrocellulose is also also highly flammable, severely limiting its potential uses. In terms of individual bases, some come with their own perks. For example, acrylic lacquer is more durable and less likely to yellow. Meanwhile, water-based is VOC-free and dries faster, plus it’s the most cost-effective.
Water-based polyurethanes do not atomize easily, despite their thinner consistency. This is especially so when the polyurethane itself is cold. We suggest using an air-assisted or airless spray gun in order to achieve the best atomization for your water-based polyurethane. You can also thin the water-based solution in order to improve atomization. Once you have finished using your spray can polyurethane, you must allow the finish to dry completely. Maintain a long, continuous movement when spraying, as stopping and starting in the middle of a coat will result in an uneven finish.
If you want to spray a water based polyurethane or have a convenient aerosol spray can polyurethane, there are certain steps to take when applying it. Here is a simple tutorial on how best to use polyurethane spray. The whole point of using polyurethane is that it should protect the surface underneath. Of course, this is going to wear over time but you should find a product that doesn’t require another application for a while. Depending on the product, some products can last for 10 – 20 years although the quality of the product and type of sheen will affect this.
Advantages Of Oil Based Polyurethane
Alkyd is a substance found in basically any varnish or oil-based paint. By adding polyurethane resin to this, you get a much stronger and more resistant product. Thanks to the addition of polyurethane resin, this type of finish has excellent minwax vs varathane polyurethane water, scratch, and heat resistance. Water-based polyurethane finishes are a combination of an acrylic resin with polyurethane. These coatings are not as strong as the oil-based version, but they do offer a number of favorable properties.
I used an oil-based poly to seal this wall-mounted DIY wine bar. The temperature and humidity levels can affect the drying times. This fast-drying polyurethane can be recoated after 3-4 hours. It needs another 24 hours before it’s ready for “light use”. What I do understand, is when Wikipedia says polyurethane finishes for wood are “typically hard, abrasion-resistant, and durable coatings”.
First of all, stir—never shake—a can of polyurethane. Shaking a can of polyurethane will introduce numerous bubbles into the product that will show up in your final finish. Instead, just stir the product gently but thoroughly before each use.
It’s also a low-odor product that can be cleaned off application tools using only soap and water. These polycrylics and polyurethanes cure to a super hard finish and protect against grease, dirt, and stains. Also, a poly topcoat has a more forgiving cleaning process. Once fully cured, ‘regular’ cleaning products can be used unlike waxed surfaces. For waxed pieces, a slightly damp cloth is recommended for cleaning – and depending on use, reapplication of the wax may be required a few years down the road.
Prepping The Wood
They do, but I am not sure how it would protect the interior stain from fading. Probably need to confirm the UV protection and not just water protection. Interior lacks the UV protection of the exterior product, so it will fade if exposed to the sun.
Should you spray water based polyurethane or is it better to use oil-based polyurethane? Both types work well in their own ways and offer unique pros and cons. Both types are very durable and offer a great looking surfaces finish, however, there are some critical differences between them. Polyurethane is already a delicate finish to try to apply.
After application, tools are easy-to-clean using just soap and water and this product spreads on evenly and smoothly. It’s a good product for people who want to provide their floors with a high-quality protective surface. 35 years ago when I started building our house I went to the saw mill, bought 3k bdft, 1.25″ and some 2.25″ red oak, had it kiln dried, planed, sanded, etc.
It also gives off a strong odor so you’ll need to use a respirator and work in a well-ventilated location when using it. You might find a polyurethane as a viable polycrylic alternative for a shiny look on your wood. When comparing polycrylic vs. polyurethane keep in mind the benefits of polyurethane. Polyurethane is a liquid-based plastic that dries on both wood and oil surfaces.
- Coincidentally this was a period in history when the profession of a ‘wood finisher’ called a “Varnisher” became a distinct class of work, separate from a woodworker.
- Once the whole surface is screened, you can add a new coat of polyurethane.
- The water vapor transmission is more controlled and consistent due to the absence of the film build like with a polyurethane finish.
- After application, it is advisable to refrain from touching the equipment for two hours to avoid leaving unpleasant marks on the furniture.
- Durability- Lacquer is much thinner than any other protective finish which allows for deeper surface penetration and a very durable finish.
Synthetic bristle brushes, foam brushes, and lambswool applicators are all suitable options for interior wood surfaces. All three finishes give hardwood floors a rich, timeless look. Most consumers said were in agreement that Bona HD holds up well over time. It’s essential that you only apply this to freshly sanded wood.
This is why they are favored for outdoor use along with the fact that they are heavy-duty in terms of performance. These are the two main types of polyurethane and each of them has their benefits. The better products made the whole process a lot easier and are built to last so it is an important purchase. To make sure you find the right one for your needs, we have created the following guide. That’s how I fell in love with GF Georgia Cherry stain.
I’ve ‘missed’ one too many times and got fed up so now, when I work with white paint, I always seal before painting so I don’t run into any trouble. Because the polyurethane finish represents the main barrier between your floors and the outside world, you can expect that they will take some damage over time. As such, you will need to touch-up or replace the finish once in a while. You will only need to do this job once every 7-10 years, and you may not even need to do it that often. Right now, you might be groaning at the prospect of not being able to walk on your floors for the next 24 hours.
Difficult to repair a damaged finish- If the protective finish is damaged, it’s nearly impossible to fix the area without having to strip it down and start over. Chris is a freelance writer who specializes in woodworking, designs his own projects, and is experienced in commercial carpentry. Many recommended cleaners may contain some type of oil in the soap formulation to nourish the oiled substrate during the cleaning.
Unlike polycrylic, this finish is hard to remove and it will last for a long time. Contrary to what most people think, polycrylic is not completely transparent. It can leave a milky-white finish if you apply it too thickly to a surface. This problem is common when working on surfaces with dark-colored paints.
Tips For Working With Polyurethane
We can freshen the Waterlox without removing more wood. Also, there is a depth to a Waterlox finish that you do not see with poly. Our floors are so beautiful that we often have delivery people tell us how great they are.
Author: Kay Burton