Photo 1 (left) and Photo 2 (right)
We’re almost done with our project, can you believe it? In this installment, we’ll take care of the color, talk about fading, and we’ll crack the lacquer—something a lot of you have been waiting for—before we add some dings and dongs in the last part of this series, which is the final touch before we put it all together again.a
We also have an advice column on aging from my friend and colleague Matthias “Matti” Meyer, from the German-based Bassart Guitars. Matti is one of the best pro agers I know. Please follow his advice and recipe for aging wood at the end of this column—we will need these tools in the next and final part of this project.
Aging the Color
Over time, the colors on guitar bodies start to fade, and depending on the type of color and the paint-job method itself, discolorations can show up. The two main factors are if the guitar was exposed to ultraviolet light and if the paint job is all intact. A famous example is the Gibson Les Paul goldtop guitars with the golden color turning greenish, or the Gibson sunburst Les Pauls losing the red color of the sunburst spray job over time. But Fender guitars also suffer similar problems.
What we want to mimic is an old nitro lacquer, but with our Harley Benton guitar we have two problems:
- The mustard color is not a real TV yellow, as discussed before. TV yellow is much lighter, so even when we find a way to fade the color, it won’t look like a faded TV yellow, but a faded mustard yellow. We can’t change this easily, so we must work with what we have and love it for what it is rather than hating it for what it’s not.
- It’s not nitro lacquer on our Harley Benton but a modern, not-so-thin, ultra-durable poly lacquer. In a technical way, this modern lacquer does a much better job than any vintage nitro stuff regarding protection of the guitar. The downside is that we can’t make poly look like nitro when aging; it will only be an approximation. But again, it is what it is, and we’ll make the best out of it.
If you have the time, exposing the guitar to direct sunlight for some weeks or months will cause a fading of the color to a certain degree. Over the years, I’ve seen the oddest attempts to do such things, including regularly placing the guitar inside a home solarium. Using artificial UV light is also an option but building a well-working construction for such a big object, like a set-neck guitar, is not easy and you’d need a lot of UV lamps for that. Such devices are often used to make yellowed plastic materials look shiny white again. An overspray with the correct color is also an option. but a lighter color on a darker one is always difficult to do—especially with a semi-transparent color like TV yellow. And I doubt it’s worth the time and money. Not everything is doable and this falls into that category. But we’ll do other things to make it look old and cool, so leave the color as it is.
Let’s begin. As usual, grab your steel wool and abrasive cloth to break the shine of the high-gloss lacquer, and don’t forget the backside of the neck. The difference can be seen in Photo 1 (before) and Photo 2 (after).
Aging the Lacquer
This is what a lot of you have been waiting for and today we’ll finally do it: cracking the lacquer!We all know the look of cracked lacquer on vintage guitars, which is part of their special appearance and charm. On vintage guitars this happens over time, the softener disappears, and the paint starts to crack. Here again, facing that our Harley Benton is poly and not nitro-painted, we must follow a different route to get a good result.
Generally, there are two basic methods to do this:
- Mimicking the cracks by using a razor blade to cut the cracks into the paint.
- Using a combination of heat and cold to crack the lacquer.
In both cases this is only the first step. Next, we’ll have to make the cracks more visible, but first things first.
I decided to use the second method: using heat and cold to crack the lacquer. Please note, this will take some time and patience to do it right: It won’t be done in 15 minutes. You don’t need much for this, just a heat gun and several bottles of cooling spray. The process is easy but safety first: Only do this outside, wear gloves and goggles, and place a bucket with cold water or an extinguisher near you … a heat gun gets very hot!
You can’t do this in one step, and you’ll need to work in smaller areas, one by one. Heat up the first area with the heat gun and be careful—you only want to heat up the lacquer and not melt or burn it. If you want to intentionally add some burned spots, a heat gun is the way to go, too. Depending on the type and thickness of the lacquer as well as the power of your heat gun, it can take some time until the lacquer is ready to crack. Start to heat it up from a distance and not with the heat gun directly on the guitar, checking the temperature of the lacquer from time to time with one of your hands. Never put your hand directly under the heat gun! Take the guitar body and your hands away from the gun when you check the temperature. If you feel that it’s not hot enough, keep heating it up until it’s good to go.
Photo 3
Photo 4
There are no rules set in stone because it depends on the things mentioned above. So, you have to try and see what works on your guitar. If you think the lacquer is hot enough, take away the heat gun and immediately spray the heated area with the cooling spray to create a sudden temperature gradient. You’ll likely have to repeat the process several times until the lacquer starts to crack, and usually you can hear when it cracks, which is a good sign. Work your way all over the guitar and crack it area by area. I needed approximately 90 minutes and four bottles of cooling spray until I was finished (Photo 3).
Does it look the same as cracked nitro lacquer? No, it’s not the same cracking pattern because of two reasons. On a nitro-lacquered guitar, the cracking happens because the softener disappears over time, which is a completely different thing. Poly is hard as glass and will never lose its softener. So, the vintage guitars of the future, let’s say in 100 years from now, will look much different compared to today—no more cracks. The second reason is that only in the middle of the spray is the lowest possible temperature not on the edge of the spray. But it’s the same ballpark, so don’t worry.
After you’re done with the entire guitar, let it cool down for some time before we start to make the cracks more visible. Again, there are different ways to do this. I prefer to use a strong black tea or coffee. Warm up the guitar slightly and dip some paper towels into the black tea or coffee before covering the guitar with them. Let them sit there for some hours before you remove them. The moisture will creep into the cracks, coloring them slightly, so they are more visible. This is a permanent process: The cracks will not lose their color again over time. On poly-lacquered guitars, I’ve also seen and tried alternative methods like using Coca-Cola, potassium permanganate, coffee grounds, stains, and more. The tea/coffee method works great and with good results and is, of course, harmless. But feel free to try other methods if you want to experiment, there’s no law against it.
After removing the paper towels, let it dry for some time before removing any residues from the lacquer using a dampish paper towel. Then, heat up the guitar slightly and let it cool down again. And voila, done! You can see the cracks are now brighter in Photo 4.
Congratulations, we are only one step away from finishing our aging project! Next, we’ll add some dings, dongs, and scratches, which is a lot of fun and a great way to individualize your guitar.
That’s it for now. Next month we’ll do another cool guitar mod, so stay tuned. Until then ... keep on modding!
Teatime: How to Age Wood at Home
Matthias Meyer of Bassart Guitars
Hi PG readers,
Did you ever wonder how it’s possible to add a special gray and dark color to the exposed wood on aged guitars? Here is my recommendation for how to do this with some simple household stuff you already have.
You will need: vinegar essence, water, black tea, steel wool, paper coffee filters, and some jars.
First, twitch a good handful of steel wool and put it in a jar. Next, fill up the jar with vinegar essence, close the jar, and let it sit for one or two days. The reaction of the steel wool and the vinegar will result in iron(II) acetate, which you can use as a dye. Use a cone-shaped paper coffee filter to percolate the liquid into a new jar and you hold the panacea in your hands. By adding some water, you can mitigate the dying effect and it’s easy to make some different aging dyes this way, from very dark to light gray.
Now it’s teatime. Make a strong black tea by using 6 to 8 tea bags in a pot, let it cool down, remove the tea bags, and pour the tea in a new jar.
One way of aging the exposed wood is to use the tea first, immediately followed by the iron(II) acetate (wet on wet technique). For a different effect and color, use the tea first and let it dry before applying the iron(II) acetate. Or use both liquids individually without the other one. It all depends on your personal taste and, of course, the wood itself. Before applying these liquids directly to your precious instruments, you should try to practice the process on some wood scraps you have lying around. Different woods react in very different ways and often the aging process needs one or two days before it becomes visible.
I hope you enjoy experimenting with this process. Cheers!
—Matthias “Matti” Meyer
www.bassartguitars.de
Photo 1
When we talk about a vintage Gibson fretboard from the ’50s, we’re talking about the mystic Brazilian rosewood (Dalbergia nigra) and its certain look and feel. Our Harley Benton doesn’t have a Brazilian rosewood fretboard. If it did, the fretboard material would cost more than the entire guitar because it’s so rare and limited today. Brazilian rosewood trade is restricted by CITES and almost no guitar companies use it anymore, except for some special custom shops. Other rosewoods or alternative woods are common substitutes.
Our Harley Benton fretboard is amaranth (better known as purpleheart), but sadly it was stained or painted black, giving the guitar a different look that’s closer to ebony rather than rosewood. So, there’s no way to get it brown or make it look like rosewood other than getting a new fretboard installed, which isn’t reasonable. Maybe it’s possible to get the black color out of the wood by using chemicals, but we don’t know what we’d find underneath, either. There could be another surprise waiting for us and all the work would be useless. On a budget guitar like this, we’ll have to live with this fretboard, loving it for what it is rather than hating it for what it’s not. The fretwork is surprisingly good and close to excellent, which is far from the industry standard in this price range.
The fretboard edges of well-played vintage guitars feel comfortable and round because the edges receive pressure from a player’s hand over decades.
But to show you the process of aging a fretboard, I chose a guitar with a rosewood fretboard, so you’ll know how to do this on a guitar with this type of fretboard if you want to. It’s not complicated so here we go.
Look at the slightly pale and lifeless color of the rosewood in Photo 1. It has a nice grain but is rather dull. Brazilian rosewood has a rich chocolate brown color, which clearly shows the grain of the wood.
Let’s make it less boring:
Use some fine steel wool or sanding pads to sand the rosewood. Use a soft brush afterwards to get the dust off.
Use some naphtha or alcohol and a cotton cloth to degrease the wood and get all the fine dust and dirt out of it.
Use masking tape to protect the fretboard edges and the binding, if your neck has one. You don’t need to cover the frets. They’re easy to clean after the process. Use a Q-tip and some Vaseline to protect the fretboard dots from the dye.
You need a chocolate brown wood dye and a small soft brush to apply it.
Photo 2
Some luthier supply stores offer special Brazilian rosewood dye in different shades of brown (Photo 2). I decided on a classic chocolate brown color on a solvent base for best results. Apply the dye thin and carefully and let it dry for some minutes.
Photo 3
Now look at the difference in Photo 3. It’s easy to see! If you want your fretboard darker, repeat the process until you like it. Cover your workspace with old newspapers and have an old cotton rag nearby just in case. This dye will stain everything permanently and you don’t want it on your clothes or your kitchen table. Let the fretboard dry for a day and take off the masking tape.
Use some very fine steel wool to polish the fretboard and the frets, to get any dye off the fret material easily. Use a soft brush to clean the fretboard afterwards.
Use some naphtha and a Q-tip to carefully clean the fretboard dots from any Vaseline leftovers.
Then use the amber color from the last part of this series [“DIY Relic’ing: Hardware Continued”] together with a fresh Q-tip and apply the amber color to the dots until you like the shade.
Now that we’ve made this rosewood fretboard look much closer to Brazilian rosewood, it’s time to mimic the touch and feel of it. Brazilian rosewood has a certain smell and feel that can be described as greasy compared to most other rosewoods. This is because of the oil content of this wood. We can’t naturally “oil up” other woods, but we can get close to this certain feel by waxing the fretboard rather than oiling it. This is also an easy process so let’s go for it.
Photo 4
Get a clear, hard wax for fretboards and a soft polishing brush (Photo 4). Apply a thin layer of wax to the fretboard using a cotton cloth to massage it into the wood.
Photo 5
Let it dry for some time, then wipe off any remaining excess wax and use the soft polishing brush to get this greasy look and shine on your fretboard, as seen in Photo 5.
So far, so good. We’ve taken care of the color and the feel of the fretboard but there is another haptic thing to consider when talking about vintage necks: the broken-in feeling of the fretboard edges. The fretboard edges of well-played vintage guitars feel comfortable and round because the edges receive pressure from a player’s hand over decades. This is not what is called “rolled fretboard edge,” which is a common custom shop option, but it goes in the same direction only to a much lesser degree.
Photo 6
To bring this typical broken-in feeling to your neck, you don’t need much: just a round metal bar and some time. You can do this to any guitar neck. I prefer to use a massive metal slide for pedal-steel players, but you can also use a bigger screwdriver or something similar. If possible, clamp down your guitar and use the steel bar in a 45-degree angle to move it along the edge of the fretboard, applying pressure (Photo 6). What we’re doing with this is not making a rolled edge but compressing fibres, which is exactly the natural process over time. Repeat moving the bar while applying pressure for some time and check the result until you like it. This is not done within a minute, so take your time. With the metal slide, I usually need 10-15 minutes for each edge until I like it, but this depends a lot on how hard your fretboard material is.
Photo 7
If you’re done with that part, excellent! You just finished your fretboard. Moving up the neck, the nut is our next task. The nut of our Harley Benton is pure white plastic, which not the best choice. If you want to keep it, you can sand it with some steel wool and apply some of the amber color with a Q-tip, followed with some of our mixture of dirt, dust, and ashes we used for the plastic buttons of the tuners [DIY Relic’ing Tuners, Part 2”]. Use your fingers to wipe on some of this mixture and you’re done. If you want to upgrade the nut, nylon is the historically correct material, and such nut blanks are available from numerous luthier supply stores. I decided to use an unbleached bone nut blank and make a new nut. Afterwards, I used some of the amber color and dust to make it look old (Photo 7).
Photo 8
Further up the neck is the cover for the truss rod adjustment screw with its mounting screw. Harley Benton decided to use a modern shape for it, which doesn’t look very good to me. The typical Gibson-style covers with their bell-like shape look much different, so I decided to swap the cover for such a model, modifying it for a flat bottom so it covers the whole opening for the truss rod (Photo 8). To make it look old, you can use the exact steps we used on the jack plate: break the shine with some steel wool, add some light scratches, wipe on some amber color on the white part of the cover, and then rub in some dust and dirt. You already know how to age screws, having done it many times before in the earlier parts of this ongoing project. If you need a refresher on our aging process for screws, refer back to “DIY Relic’ing: Break the Shine” for guidance.
Photo 9
The last thing we’ll do today is begin to work on the headstock of the guitar, which is often a delicate task. A lot of modders try to reshape the headstock so it will look like it’s from a vintage guitar, and, even worse, replace the headstock logo with a fake logo from another company. I would never do that. This project is about aging a guitar and not about making it an exact copy of a vintage original. Personally, I really like the headstock shape of the Harley Benton. It looks at least a little bit Gibson-like, and I also think the Harley Benton logo looks cool the way it is (Photo 9). So, aging it is very easy: Break the shine with some steel wool and wipe off the dust. Use a Q-tip and apply some layers of the amber color to the logo until you like the shade. Adding dings, dongs, and scratches will come later. In the next part of this project, we’ll take care of the backside of the neck and the body by cracking the lacquer to mimic some old nitro lacquer.
That’s it for now. We’re almost finished with this relic’ing project, but before we wrap it up, we’ll return to guitar mods in the next issue. We’ll take a deeper look at putting vintage parts into new electric guitars, so stay tuned.
Until then ... keep on modding!