A thin acrylic lacquer finish will be basically indistinguishable from nitro, except that it wont yellow and crack over time. The firm that supplies our nitro also supplies the pigments and does the color matching mixing and tinting for us as well. Figure 11, 200ml nalgeneo spray bottle used to apply the lacquer solution to. Nitrocellulose products are generally a mixture of mononitrocellulose, dinitrocellulose, and trinitrocellulose, where each glucose unit in the cellulose chain has one, two, or three nitro groups, respectively. Polyurethane clear coat over nitrocellulose discussion in luthiers corner started by ynie92992, aug 2. Other clinical findings associated with pm include posterior staphyloma, lacquer cracks, tessellated fundus, tilted optic disc, and straightened and attenuated vessels. Anyone servicing the wood finishing market should be able to get nc lacquer, the challenge maybe the quantities. Nitrocellulose lacquer is synonymous with wellcrafted, vintage and modern instruments. These lacquer colors were created to try and match the vintage custom colors used by fender in the 50s and 60s. How to test a body finish to determine poly vs nitro.
Its relatively easy to apply and buff to a beautiful, high gloss finish. The goodhumored lead singer of the hart brothers band, formed in 1979 with brothers heamon tib hart and arman sam hart, pete is a soughtafter luthier in addition to being a talented musician and vocalist. Actually, i dont know what they paint cars with now. Nitrocellulose lacquer is made by taking cotton and treating it with sulfuric and nitric acid, generating an acidic pulp, which can be strained to produce a watery resin. Doesnt matter if its polyester, acrylic urethane, polyurethane enamel, uv curable acrylite, epoxy its poly and its bad. I had hoped to post this update much earlier in the month. A discussion started in 2002 but continuing through 2019. A short tutorial showing how to get that cracking checking effect on a nitrocellulose guitar finish. Im sure it is nitro cellulose,and it just has patches where it is like this. Not all nitrocellulose lacquer is the same, beware of inferior types which will not give as good result. I dont know about close enough, but all nitrocellulose lacquers are certainly not the same.
Deft clear lacquer is nitro so if you find a can of deft in your hardware store read the label and see who actually made it. Particularly helpful would be cases involving exposure in woodworking. When spraying nitro over acrylic, you have to do it in light mist coats and let each coat dry to the touch until you got a good 2 coats of nitro over the acrylic. The term lacquer originates from the sanskrit word laksha representing the number 100,000, which was used for both the lac insect because of their enormous number and the scarlet resinous secretion. Note lacquer should only be used in a well ventilated area. Nitrocellulose lacquer nc lacquer is still available in canada but short of musical instruments its really not used much any more but for this application its tough to beat. We use a nitro sealer beneath this which is basically a nitro with some filler in it but any compatible sealer is probably ok. One of the most disappointing of those is the tendency to check or crack with a sudden drop in temperature. When edmund flaherty invented nitrocellulose lacquer in 1921, he couldve had. Blackguard telecaster build continued nitro lacquer.
We use nitrocellulose lacquer and standard nitro compatible pigments for color mixes. The only downside is the amount of time required for the lacquer to completely cure. In addition to the nitrocellulose polymer, there are plasticizers smaller molecules which fit between the polymer strands and function to keep the polymer strands from collapsing onto each other and forming what are known as crystallites. The bestapplied sealant is the kind with invisible lines. Repairing a neck ding with nail lacquer genius or stupid. Has there been any research on the effects of inhalation exposure to nitrocellulose lacquer and related solvents in humans.
Nitrocellulose lacquer i told him how oxnard wasnt producing guitars yet with nitro, and that we had heard about problems and challenges theyre experiencing. I do custom painting projects, guitar painting, airbrushing, spray can painting, wood working, and a variety of other finishing work and tutorials. The shine is still there but more subtle and less reflective. The last thing you want are streaks to dry over the lacquer, marring your otherwise nicely finished guitar. Cracking crazingchecking from temperature and humidity changes is a well known issue of nitrocellulose lacquer finishes. Nitro finishes, however, crack and yellow with age, and they can check. One of the most disappointing of those is the tendency to check or crack with a sudden drop in. Nitrocellulose lacquer does have some nasty habits.
Nitrocellulose is produced by nitric acid reacting with cellulose. They worked great until they dried up, and i always had ideas about the car lacquer pens. Okay, i put poly in quotes because its come to be a somewhat if not outright derogatory catchall term for any finish that isnt nitrocellulose lacquer. This is a subject ive been avoiding because you cant talk about nitrocellulose lacquer finish without talking about relicing, so im going to cover both those topics. There is a website for guitar finishers called that sells it in spray bomb form us only. Take a can of that dust off stuff compressed air in a can used for blowing off computer stuff. Nitrocellulose guitar paint and lacquer guitar paint and. Ohio valley nitro offers a full line of nitrocellulose finishes in 16oz. Mohawk finishing products m1020541 mohawk finishers. Inhalation exposure to nitrocellulose lacquer and related.
Myopic choroidal neovascularization american academy of. The last step in the process is to seal the newlystained guitar. Mohawk finishing products m1020541 mohawk finishers choice clear satin lacquer, oz. Nitrocellulose also yellows with time, especially when exposed to excessive sunlight. Now, im planning to buy some reranch daphne blue paint. This nitrocellulose lacquer is used to capture the neck finishes used by fender.
Tips for completing and caring for knappster guitar. Tonetech ltd provides luthier supplies, luthier tools, guitar paint and nitrocellulose lacquers across the uk and europe. I want to put the reranch color, and then shoot some minwax poly clear on top. Looking for sources of nitrocellulose lacquer paint is. The use of lacquer nitrocellulose for the coating and.
Checking cracking a nitro guitar finish nitrocellulose relic tutorial. Prepping for a nitro lacquer paint job amateur luthiery. Looking for sources of nitrocellulose lacquer paint. Crackling lacquer quick transitions between heat and cold are another way to create a crackle effect in a lacquer finish. Im with frank on this one my initial attempts at nitro spraying many years ago resulted in longitudinal cracks throughout the lacquer on swamp ash mainly and this was definitely a result of too much lacquer, too soon with too little thinner. Fa can be helpful in detecting lacquer cracks, which appear as hyperfluorescent streaks of transmission defect in the early and transit phases. Spectraldomain optical coherence tomography sdoct is an essential tool in the evaluation of myopic cnv, which may appear as a hyperreflective lesion with fuzzy borders at the rpe, central. Its difficult to even lacquer guitars legally these days on a big scale. How to refinish a guitar with nitrocellulose lacquer. Guysville, ohio, resident myron pete hart not only plays the mandolin, he makes them as well. Also nitro has a much thinner finish on guitars and is easily rubbed off hence, vintage relics. The resulting resin is then combined with a number of fast drying solvents to produce the finished lacquer. The look, feel, and tone of nitrocellulose is hard to surpass, and it is easier than many finishes to repair or touchup.
Kerosene works better than water to keep the sandpaper from loading up, and it wont cause the wood grain to swell or raise if it gets into any little cracks or voids in an old finish. All our sample neck colour photos show three coats of the labelled nitro tint laquer on top of a clear sanding sealer base. Besides using thickened lacquer, you can also put a fan on the area to speed up the process. It would look like this clear nitro on bare wood, color coat nitro, same clear nitro on top of the color. Clear nitro cellulose lacquer can be used over the tinted lacquers, to give a protective top coat that can be polished to a high gloss. It is classified as an explosive when nitrogen content exceeds 12.
The term lacquer is used for a number of hard and potentially shiny finishes applied to materials such as wood or metal. A darker or lighter finish is controlled by how coats are applied. Scraping and sanding, using kerosene as a lubricant for the sandpaper. Gloss rubbing lacquer for pricing or to order, call. You can stress the wood causing cracks to develop both in the finish as well as into the wood itself. Nitrocellulose lacquer synonyms, nitrocellulose lacquer pronunciation, nitrocellulose lacquer translation, english dictionary definition of nitrocellulose lacquer.
Gibson hashad a very similar nitro scratch fix pen, and i had a few colors, clear and black. Once the learning curve is behind us, once the equipment is owned, its pretty easy to apply, very forgiving of mistakes the guitar turned out fine once the problem was finally remedied. The crucial bit is the nitrocellulose finish because if its poly, oil, acrylic or. No, modern nitro finishes arent exactly as they used to be, but well take them over glasslike polyester any day as a result and also due to their ease of use compared with oldstyle solventbased lacquers more robust, easiertoapply, quicker to cure, lowvoc finishes notably polyurethane and polyester were developed and are now the.
Everything you ever wanted to know about nitro guitar finishes. I was thinking if i can use a clear nitro lacquer right at the wood to act it as a primersealer mostly to even out the surface and prevent the wood from taking too much color coat. Apart from the above, small cracks can appear in a nitro. This changes the hydroxyl groups oh in the cellulose to nitro groups. I have done many, many finish touchups with ca, but imho, lacquer is the preferred method to repair nitro. Jeff, in your case being you already have nitro lacquer on the the guitar you cannot put acrylic over it. Some manufacturers have added plasticizers to their nitro formulas to soften the finish and make it more resistant to checking. They have a lot of coats so they appear very thick. He said something that i had not heard, namely, that after spraying nitro on a guitar, you need to wait 2 3 months for it to cure and settle before moving on with it.
I can buy three cans of the minwax nitro for a little less than the hazmat surcharge buying nitro online, and the results were really good, if a tad slower than id prefer. Used since the 19th century, nitrocellulose is a multiuse chemical employed. Nitrocellulose lacquer was used as a finish on guitars and saxophones for. Any of various pulpy or cottonlike polymers derived from cellulose treated with nitric and sulfuric acids and used in the manufacture of explosives. You should wear a properly fitted vapour respirator during the application and drying of nitrocellulose lacquer. Lacquer is nearly as deep and clear looking, but it requires spray equipment and safety equipment. Tips for completing and caring for your nitro lacquer finished guitar. Learn vocabulary, terms, and more with flashcards, games, and other study tools. I was also using a commercial brand of nitro which was definitely a problem when used on wood.
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