Most coasters are constructed of wood, paper, ceramic, or polyurethane, but there are many other materials out there. Some of them include a coating that keeps drinks from leaving marks on the coaster. But how can you keep water from harming them?
Wooden Coasters
Wood finishes can be applied to wooden coasters to make them look watertight. Polyurethane, tung oil, or varnish can all be used to protect them. This will provide a barrier against spills and general wear and tear, extending the life of your coasters.
The most well-liked material is polyurethane. As well as being long-lasting and adaptable to a variety of surfaces, including wood, its usage is simple. One drawback is that it requires many layers of clothing to see clearly. Although this may seem like an unnecessary precaution, it is actually a straightforward method of giving your coasters the safety they deserve.
Another solution that is simple to use is polycrylic. It works wonderfully on white and light woods. Simply remove any surplus for a flawless end result by wiping. In comparison to polyurethane, this option is simple and fast to implement.
It's not the most long-lasting choice, but it will keep your wooden coasters safe for the time being. Several coats of paint should be applied to coasters if they are to be used often. This sort of coating not only keeps your coasters dry, but it also gives the wood a subtle tint.
Cork or Ceramic Coasters
There are a variety of methods you can use to make sure your homemade coasters are watertight, whether you're creating them for yourself, a friend, or a family member. To name a few possibilities, you may paint them or use an acrylic or polyurethane sealer to protect them.
Water-based coatings like polyurethane are great because they dry quickly and are simple to maintain. You may also use it to give your wood some color. Bear in mind, though, that it won't last as long as an oil-based finish. Wait till it dries before using it.
A photo or print can alternatively be sealed with a PVA solution to achieve the same results. You can find this sealer at any arts and crafts shop, and it dries transparent.
Another great idea is to use an acrylic spray lacquer in a transparent finish. This is a spray-on product that can be found at most home improvement stores. It just needs a small misting, and then some time to dry.
Sets of Coasters Made of Polyurethane
To ensure that wooden coasters don't get water damage, many people choose to coat them with polyurethane. They provide a durable coating for wood and are simple to apply. To get started, though, there are a few things you need to know.
Finishes should be tested before being applied. Different coatings may not always work well together due to their differing chemical qualities. If you mix polyurethane and shellac, for instance, you'll get a bumpy finish. Your coasters will require sanding before a fresh finish can be applied.
Polyurethane can be applied to wood with a brush or a foam roller. After you're done, just wait for it to dry. The substance will harden after being left out for at least 48 hours. This is also the moment when gloves are highly recommended.
Polyurethane oil can be used for a longer lasting coating. This has the benefits of being resistant to heat, stains, and water. You'll need to apply many coats before you get a flawless finish.
Those who lack brush skill can instead employ a spray gun. Layers of the finish should be applied carefully.
The Use of Coasters
Waterproof paper coasters are easy to create and make great gifts for friends and family. Applying the picture with Mod Podge and sealing the layers is the first step. To prevent moisture and alcohol from penetrating the Mod Podge once it has dried, apply a clear acrylic gloss spray.
One alternative is to use spray paint on the coasters. It's best to apply it in two coats and give each application at least 20 minutes to dry. In addition, you may make them durable enough to be reused by covering them with squares of scrapbook paper or kraft paper.
Coasters made from wood can be finished with polyurethane that is oil-based. The coaster will be safe from moisture and heat, and the wood's original color will shine through thanks to the coating. The resin's thickness varies from maker to manufacturer.
Paint or varnish work well for decorating cardboard coasters. Each of them works well as a transparent covering. In contrast, polycrylic can be used for a more durable finish. These coatings won't last as long as polyurethane, but they're simple to maintain.
