Over time, however, the natural dark color of walnut wood can lighten and fade due to exposure to sunlight and other environmental factors. This fading can result in the wood taking on a lighter, more yellowish-brown color.
Unlike cherry, maple, and oak (which all darken in color as they age), walnut wood will actually lighten slightly over time.
New walnut has a consistent dark-brown color but as it gets older, two changes occur. 1: Unlike maple and cherry, it gets lighter. 2: A rich honey color starts to come through the grain.
Old filler is often a problem with oak, walnut, and mahogany. Bleaching can also be used to even the color of a piece of furniture made with two or more woods. It can lighten the darker wood to match the lighter one. Before you use bleach on any piece of furniture, make sure the wood is suitable for bleaching.
Bleached walnut. Sometimes you want to make wood lighter than it is in its raw state. This is common when trying to match the wood to something that already exists. The way to do it is to first bleach out the color of the wood, then apply a stain, if necessary, to achieve the match.
Walnut wood can change color depending on the way it's dried or its age. The heartwood usually is a dark brown color and the sapwood is a light yellow color. When the wood is left out in the elements, such as the sun, the lighter wood will turn darker and the darker wood will turn lighter.
The kernel of a young, only torn walnut has a light color, after lying for several days, the kernel it darkens a little. This is a natural and normal process. After drying, the kernel takes on its permanent color.
Walnut is lovely wood, especially when carefully air dried so as to preserve the rich chocolate, purple and black tones in the best of it. HOWEVER, It fades like mad in sunlight. Furniture is touched by sunlight. Therefore, the lovely colors of the walnut go away — and it doesn't take centuries.
For example, the elements frequently darken pale wood and brighten dark wood, so years of sun exposure will typically lighten walnut wood furniture. While some people stain walnut wood to preserve the darker hue in perpetuity, it is commonly clear-coated or oiled.
However, walnut can start to fade and lose their luster over time. There are several reasons why this happens, but the most common culprit is direct sunlight. UV rays from the sun can damage the wood and cause it to fade. Other factors such as humidity, heat, and water can also fade.
Walnut is a fantastic choice for a lot of reasons… first, it's gorgeous but because it has a slight purple undertone to it — walnut can work best with both warm or cool undertones.
Walnut wood offers rich, brown colors that range from light to dark brown. The sapwood (outer part of the tree log) is pale yellow to white and the heartwood (center of the tree log) has brown shades that vary from light brown to dark chocolate brown with some dark brown streaks.
The peel and kernel of the walnut contains tannins such as gallic acid and tannins. Under the influence of the sun and oxygen, they oxidize and turn brown. Therefore, it is better not to leave the nut in the sun. If there is no way to hide the nut in a dark place, you need to at least remove it in the shade.
Both beautiful woods, walnut and brown maple make stunning wood furniture. Walnut has some darker colors, but still looks beautiful au natural with an oiled finish.
Many, probably most, store-bought stains are made with both dye and pigment. If wood stained with these stains is exposed to sunlight or fluorescent light for a while, the dye color will fade away, but the pigment color will remain. The effect is that the stained wood changes color.
The color of walnut heartwood varies, from greenish to dark brown when first cut. As the wood ages, initially it turns to a chocolate brown color and then darkens even more. We can certainly start an argument, but my opinion is that some of the best colored walnut comes from Missouri and the surrounding areas.
Many things can change the natural color of walnut wood. For example, the elements will often darken light wood and lighten dark wood, so sun exposure over a period of years will typically cause walnut wood furniture to lighten.
The best finish for walnut is a clear one. Several coats of Danish oil provide clarity. For protection, add a compatible clear topcoat.
The skin of the walnut kernels can get dark during the pre- and post-harvest stages of the production. Dark kernels are less palatable for most consumers but are still edible and maybe preferable, especially in the ground form, for industrial use.
Walnut wood has been the first choice of north american woodworkers since the 1700's. It is the only rich and dark wood that is naturally found in the americas. Walnut is very commonly found in mid century modern furniture for it's classic timeless look.
Harvest begins in the first weeks of September and comes to an end at the beginning of November each year. Farmers know it's time to harvest when they see the walnuts' outer green hulls drying and starting to split, allowing them to remove the walnuts from inside.
Species such as maple and walnut dry at an intermediate rate, ie a 1” walnut board air dried in the south in the summer time will dry in about 120 days, and species such as oak, mesquite, and hickory dry very slowly (ie 1” per year).
Direct exposure to sunlight over a long time will change the coloring chemicals of walnut and cause the reduction of their dark brown color. Also, the level of exposure will increase the speed of the color shift from dark to pale. However, walnut furniture fades like mad in sunlight.
As wood dries, it loses its moisture content and becomes lighter. Softwoods have a very high moisture content when they are green, so the weight difference will be more noticeable than hardwood varieties.
Special Walnut by Minwax (also available here!) is a lighter, brown walnut color. I found it to be similar to Early American but with more muted brown tones and no red tones. I've seen it used on flooring and it's another very versatile stain color.