Spar urethane is intended for out side use. This is where you need to add a protective finish top coat of polyurethane or polycrylic to the piece to give it a shiny appearance that is durable and resistant to damage. When you look at urethane vs polyurethane, you will notice that urethane can be molded into different shapes while polyurethane is only for hard, flat surfaces like side tables. So it is best used when you don’t want a yellowish colored layer over your furniture and more so over light colored paint. Polyurethane has also been compared to shellac. Here are a few common situations you might run into, and our recommendation for whether polyurethane or polycrylic would work best: While your woodworking project will do well with either polycrylic or polyurethane, ​if we could only pick one sealant after this polycrylic polyurethane debate, it would have to be polyurethane. Copyright 2020 by SawsHub.com - Privacy Policy | Disclaimer | Contact. Join Yahoo Answers and get 100 points today. For furniture, I use polyurethane. It has a bit of an elastic property to it so it can expand and contract with weather conditions. Both products provide a protective barrier with varying degrees of protection. Oil based polyurethane is comparatively more durable than water based especially when it comes to handling extreme heat. The strong, protective finish will extend the life of your furniture, deck, or other material. It goes on quickly, dries fast and you can apply many coats with little work between coats in terms of dust accumulation. What is the difference, and when would I use them? When you look at the differences between shellac vs polyurethane, you’ll notice that shellac is composed of an alcohol and insect secretion base and it comes in a variety of colors. Polycrylic provides good protection on a variety of wood vertical surfaces that will be used indoors. Use quick, up-and-down strokes when applying. When you apply polyurethane (especially oil-based), you need to wear a respitory mask. We purchased a bar top that was finished with polycrylic. Polyurethane comes in a variety of finishes, ranging from matte to satin to glossy. ​It is also virtually transparent, where as oil-based polyurethane has a slight yellow hue to it. For products that sound so similar, there are quite a few differences. Some may think its a little too soft for interior applications. TheSawGuy.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Still have questions? Beyond that, it is really up to you. First make sure the surface is free of dust. Water based polyurethane is good for things that are not exposed to extreme or rigid temperatures such as picture frames, side tables, bookcases and desks etc. Debris trapped up in polycrylic will create an uneven finish. SawsHub.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Those must be suspended evenly in the product when is is used. Water-based Polyurethane vs Oil-based Polyurethane, Polycrylic lacquer is much ​​less durable than polyurethane, 22 Different Types of Saws and their Uses for DIYers, Brad Nailer vs Pin Nailer: When to Use Each Nail Gun, Best Riding Lawn Mower for Hills [2020 Review], 50 Small Wood Projects That Are Simple and Easy, 25 Awesome, Easy Woodworking Projects for Kids of all Ages, ​Matte, satin, glossy, and high gloss finish, ​Best for indoor surfaces like picture frames, ​Both are suitable for finished or unfinished surfaces, Poly​urethane comes as both oil and water based (your choice) whereas polycrylic only comes water based, Polyurethane is ​easier to apply and can be done with a brush or by spraying, ​Polycrylic dries clear but polyurethane (especially oil based) dries with a slight yellow tint, ​Since polyurethane is more durable​ and holds up better to sun and water, only use it when working with outdoor surfaces, ​Polyurethane has VOC toxins that are very dangerous whereas polycrylic is far safer. Urethane based on water is a lot less dangerous, and polycrylic has hardly any of the VOC toxins mentioned. I am recommended to use a water based polyurethane to transfer a laser printed poster onto a wood. It remains runny leaving behind cracks when dried. Use water-based poly on darker wood indoors, on surfaces that don’t get a lot of contact. His first experience came in completely restoring an antique home. Just purchased a new cutting board, So which goes first to protect it and how often, the wood cutting oil or natural wax? The application process is more involved than with polycrylic finish, and it takes a lot longer time to dry. Polyurethane is more expensive and takes longer to apply, along with taking longer to dry. The long time the coat stays wet can allow dust and dirt particles to fall onto and stay on the surface. Use Polycrylic because it dries very fast and seals quickly. Both polycrylic and polyurethane offer a nice glossy appearance to your wood surface. You also might have the best option to select between matte vs satin polyurethane. Note that matte,  satin, and semi-gloss finish products need to be stirred well before application. Polycrylic can be quite the challenge to get an even application, it has a runny consistency and requires slow going. When applying polyurethane to paint, we recommend a water-based poly product. Does it need to dry quickly? Once hardened, it forms a strong protective shell over wood. Dilute your oil based polyurethane with mineral spirit and apply long even strokes of the liquid on the surface. Polycrylic works wonderful for specific situations. Polyurethane takes a long time to dry and unfortunately needs a well-ventilated area for drying. They both have different compound makeups. These can often be sanded out using 400 grit paper between coat. Varnish-Spar Urethane-Detailed information on each Topcoat-SHELLAC: Shellac is a natural product. I alway enjoy the next challenge to build to keep sharpening my working skills. Depending on the wood surface you are coating, one may be better than the other. The additives in matte paint keep the “easily dried” polycrylic from drying up. It dries quicker like oil based relatives, and has a lot of the same characteristics as its oil equivalent. How can we fix this? Copyright © 2019 by The Saw Guy – Saw Reviews and DIY Projects. Sand your piece with fine grits of sandpaper, Once the wood is free of blemish, remove any dust. The reason for working quickly is to maintain a “wet edge” while applying the coat. It is ideal for use on light wood surfaces like ash, maple, birch because it has no tint. You may also think of polyurethane as urethane, but they are actually two different components. Is this going to be an ongoing issue that could get worse? With a satin vs semi gloss polyurethane, there is no difference in the protective qualities of the coat, only in the gloss level with semi-gloss providing more shine. Flooring, countertops, kitchen tables, or surfaces that will get wet and have high traffic are all good candidates for polyurethane. Once they are dried, collected, and processed, you can dissolve them in a solvent such as alcohol. When you are completing a woodworking project, you want it to look its very best and last a lifetime. But, it is much more durable and resists scratching much better. Water based polyurethane is famous for being low odor and low toxic. This is why it is best to use the polycrylic coat on light-colored woods, where this would not be as apparent or noticeable. Shellac is not as durable as polyurethane. Other folks I know love using the stuff on indoor furniture. Polycrylic, though, is only water based. Satin will the be least shiny finish, resembling more of a “dull”, flat finish. But, you will get a much stronger and longer lasting finish. ​And, both polyeurthane and polycrylic can be applied to either a finished or unfinished surface. If you don’t want that sheen to be visible on your wood, then you’ll want to avoid polycrylic and polyurethane. Both are equally durable and will provide the same level of protection on your wood surfaces. While polycrylic and polyurethane are a protective wood clear finish that applies a sheen, they don’t have a whole lot else in common. However, the local agent in Singapore does not have the inventory of this and recommends water based polycrylic instead. ​As we mentioned before, it is available in a gloss finish, semi-gloss finish, or satin finish, allowing you some flexibility in the sheen it offers. Over standard latex paint but not over matte latex before application processed, you want to use light. Sister gave me a can of polycrylic and polyurethane stop, believe it,. 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