After that, use a penetrating epoxy seal to stabilize it. In addition, urethane will establish a good chemical connection with epoxy if placed within a specified time window, so check the epoxy specks. Bob. For cutting boards, I use wenge edge grain, while for coasters, I use wenge face grain. Both are hardwood and come from the same tree, but one is vertical and one is horizontal. They look almost identical except that one has more growth rings or grains per inch than the other.
Wenge is popular in furniture making because it's strong, durable, and attractive. However, wenge is difficult to work with because it can only be worked into certain shapes and it tends to split easily, so it's not recommended for beginners who lack experience. But if you know what you're doing, then you can use wenge just like any other wood and use your knowledge of woodworking to your advantage.
Here are some tips when working with wenge: When cutting wenge, take care not to cut into its heartwood layer. This is how the board gets its name- wenge comes from a Chinese word for "kingfisher," since the bird's color fades from light to dark across its breast, much like the grain of its wood. The heartwood is usually a lighter color than the sapwood which is mostly dead tissue. Sapwood is also more brittle than heartwood.
When selecting an epoxy for casting, keep in mind that the shorter the gel time, the less you may pour at once. If the item appears to be fast warming up and you are concerned that you have gone too far, you might attempt chilling the area. It may be as easy as opening a door or using a fan to blow air over or beneath it. The object should be stable when chilled and not move much when tapped.
If the gel time is very long, your only option is to let it cool. An hour or more will allow you to pour more than one item at a time.
You can also use a liquid cooling agent such as water or alcohol to speed up the cooling process. These agents need to be kept away from open flames, hot surfaces, and vapors!
Epoxies harden when cooled, so once you start pouring, don't stop until it's done. If you remove parts before it's completely cured, you could ruin the model.
Check out our How To Cast guide for more information on how to cast with epoxy.
Pull the epoxy towards the wood's borders using a foam brush. Put the foam brush in the puddle of epoxy and start pulling the epoxy over the edges in back and forth strokes. Try to apply a uniform coating of epoxy to ensure that the entire piece of wood is coated. Let the piece of wood sit for at least 15 minutes after brushing it to allow the epoxy to fully cure.
Sand the epoxy with 120-grit paper while it is still wet. The 120-grit-150-grit sandpaper has an excellent tooth for varnish adherence, and varnish coats quickly cover scratches. Finer grits should be used with thinner finish coats. Apply two or three coats of varnish, as directed by the manufacturer. Replace the trim. Make certain that all fastener holes are epoxy-sealed.
The best way to use epoxy over lacquer is similar to using varnish over lacquer. Use a fine-tooth sandpaper to smooth out any rough edges before applying another coat. Three coats are recommended, just like with varnish.
The best way to use epoxy over polyurethane is by spraying it with a clear coating after each application of polyurethane. This will help prevent color from rubbing off and will allow you to see if any more coats are needed. Allow each coat to dry completely before applying the next one.
The best way to use epoxy over wood is with a primer first. Use a good quality acrylic or enamel paint instead. It can be thinned with some water but not enough to wash away the protective qualities of the primer.
Epoxies are easy to work with and durable. They can also be used as fillers in places where you need extra strength such as in wooden boats. However, they do require open air time before they fully cure so make sure you allow enough time for this process.
Ensure that the epoxy sealer is applied to the whole wood surface. Coat the whole exposed surface area with the prepared epoxy resin mixture for the best results. Apply numerous layers until all of the wood's porosity is sealed; some grain rising is to be expected after coating. Let the coated board dry in a dust-free, well-ventilated environment for at least 24 hours before moving on to the next step.
After allowing time for the epoxy to cure, you can then stain or paint your project as desired.
Sealing wood is useful for protecting it from moisture and other elements. Sealing also helps prevent any odor that may come from wood when it first comes into contact with air (for example, when you store wooden furniture away from public areas).
There are two types of wood sealing: exterior and interior. Exterior wood sealing protects the wood against weather factors such as rain, snow, wind, and heat. It also helps maintain the color of the wood. Interior wood sealing keeps out moisture and other substances that could damage the wood over time.
You can seal wood with an acrylic or polyurethane finish. These types of finishes are easy to apply and very durable. They can also be used to change the color of certain parts of the piece you are finishing.
Use the Liquid Wood Epoxy Consolidant to consolidate the wood. Follow the manufacturer's instructions for combining the two parts liquid wood epoxy consolidant. After that, squeeze the consolidant into the 1/4-inch holes and onto the wood in the repair area. With a little disposable brush, work it into the wood. Let the repair dry overnight before sanding or staining.
This is an advanced project that requires some skill and practice to achieve good results. If you don't have much experience with woodworking, be sure to take your time and learn as you go. Also, only try this technique on small pieces of wood; if the hole is large, you may not be able to fill it with a single application of the consolidant.