May 16, 2009 that said, nitrocellulose lacquer will check spontaneously if it is applied too thickly. As an instruments wood expands and contracts with moisture content stress is placed on the finish. Lacquer cracks are present in high myopia and can lead to choroidal neovascularisation and macular haemorrhage, which in turn can cause central visual loss but it is not very common. Looking for sources of nitrocellulose lacquer paint is. This works best with nitrocellulose and cabacrylic lacquer. I have finished a lot of ebony before without the crystalac without any problems so i tend to suspect the crystalac which was applied heavier to the ebony. I bought a couple but am wondering if it will work as well for instruments. 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. These distinctive fundus changes are actually quite common in axial myopia and may. Troubleshooting finish cracking checking on veneer.
I was trying to make some nitrocellulose lacquer colloidion, etc to seal and waterproof some paper cartridges. A discussion started in 2002 but continuing through 2019. Before you apply the lacquer, be sure all of the rough spots are smoothed and the old finish has been stripped evenly. I am 40 years old, and as a practicing attorney, am obviously concerned that my condition will either worsen in my right eye, or also develop in my left eye, thus rendering me essentially disabled. Edmund flaherty, a chemist working for the dupont chemical company, is credited for inventing nitrocellulose lacquer in 1921. Though i would agree that most cases of lacquer checking seems to happen due to abrupt temperature changes, most notably when a cold guitar is taken into. The idea is, you want the solvent to dissolve the edges of the cracks and make them flow into each other. 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. I realize that many here use behlen nitrocellulose stringed instrument lacquer for their finishes. Looking for sources of nitrocellulose lacquer paint is it. Nitrocellulose is an explosive compound produced by the reaction of cellulose and nitric acid, or other strong nitrating agent. Just like a crack in a piece of glass, the light cannot pass through and the eye. We use nitrocellulose lacquer and standard nitro compatible pigments for color mixes. Other, more modern finishes are catalyzed polymers and as they cure, they undergo chemical changes that make them insoluble in anything.
Aug 24, 2008 nitrocellulose lacquer paints were in fact developed by dupont in the 1920s specifically not to breathe, but to be a sealant against the forces of nature for automotive applications. The epa also has iris, that should have information on the different solvents plus the doesresponse and exposure. A good example here is gibson famous for old cracked lacquer finishes. Crackle lacquer ups ground only crackle lacquer crackle lacquer creates a cracked, crazed, or antique looking finish.
Ive checked it out and in most respects, it wasnt anything with any particular magic thats for sure except that the plasticisers they used, you wont find anymore. Since youre stating that youre using this strictly as a bonding coat it is safe to sand it. This type of lacquer, which dries quickly is used in auto finishes and on wood. The top countries of suppliers are india, china, and india, from which the percentage of nitrocellulose lacquer supply is 3%, 87%, and 3% respectively. It is normally applied as lacquer spray paint with polish to improve the furniture appearance and durability. Note lacquer should only be used in a well ventilated area. I would search for other names of nitrocellulose lacquer, there is a link below.
The eyes of men have a 2fold incidence of lacquer cracks as compared with those of women. Vithadermnd 24a nitrocellulose lacquer is a white, milky, turbid liquid composed of nitrocellulose resin dissolved in an organic lacquer solvent. While no longer used to lacquer automobiles it remains a popular finish for guitars and furniture, particularly on vintage restoration and reproduction pieces. Though you will have melting of the finish into one homogeneous coating if youre using a straight nitrocellulose type lacquer. Mohawk finishing products m1020451 finishers choice clear nitrocellulose lacquer flat. Lacquer grade of soluble nitrocellulose is closely related to the more highly nitrated form which is used to make explosives. A wet coat of crackle lacquer is sprayed over a dried nitrocellulose colored base coat. Lacquer drop fills on lacquer on the other hand have the potential to melt into the old finish because the solvent partially redissolves the surrounding finish. High solids nitrocellulose lacquers lawrencemcfadden lacquers. Depending on the manufacturing process, nitrocellulose is esterified to varying degrees. Nitrocellulose lacquer does have some nasty habits. This is because the ratio of solvent and types differ depending on the mfg.
The finish on those instruments is often twice as thick as martins or even significantly more that that. The trick is to build a thickness of lacquer without wetting the surface. Checking cracking a nitro guitar finish nitrocellulose. A thin acrylic lacquer finish will be basically indistinguishable from nitro, except that it wont yellow and crack over time. Nitrocellulose lacquer paints were in fact developed by dupont in the 1920s specifically not to breathe, but to be a sealant against the forces of nature for automotive applications. Nitro is also more prone to fine scratches as its a softer clearcoat. Feb 18, 2011 the idea is, you want the solvent to dissolve the edges of the cracks and make them flow into each other. One of the most disappointing of those is the tendency to check or crack with a sudden drop in temperature. Lacquer finish implies a surface finish that creates a fine smooth wood layer on furniture to improve its functional characteristics. Compressor in good working order and drained once or twice daily and pressure regulator controls, and moisture trap installed in the air line as close to the spray gun as possible within 10 to 25 feet of the gun. Dust on four or five coats of lacquer, then dissolve the coats together with a wet coat.
A short tutorial showing how to get that cracking checking effect on a nitrocellulose guitar finish. View blog tonetech luthier supplies 5 common questions. Nitrocellulose lacquer is known as an evaporative finish, in that it dries very quickly, sands easily, has a high solids content, and dries to a crystal clear finish. Nitrocellulose lacquer i told him how oxnard wasnt producing guitars yet with nitro, and that we had heard about problems and challenges theyre experiencing. Lacquer cracks have only been observed in the posterior pole of highly myopic eyes. Nitrocellulose lacquer is spincoated onto aluminum or glass discs, then a groove is cut with a lathe, to make oneoff phonograph records, used as masters for pressing or for play in dance clubs. The firm that supplies our nitro also supplies the pigments and does the color matching mixing and tinting for us as well. Im not saying nitrocellulose lacquer finishes arent good finishes, and arent good for a guitars tone, but they dont allow the wood to breathe. Nitrocellulose lacquer is made by mixing fastdrying solvents with wood and cotton pulp containing cellulose that has been broken down by nitric and sulfuric acid. Nitrocellulose yellows and cracks more also called finish checking than polyurethane and polyester finishes. The lacquer is made by dissolving nitrocellulose pellets in an appropriate solvent to bring it to a liquid state. Unfollow nitrocellulose lacquer to stop getting updates on your ebay feed. A wide variety of nitrocellulose thinner options are available to you, there are 82 suppliers who sells nitrocellulose thinner on, mainly located in asia.
It is a clear liquid to semisolid when dissolved in alcohol, acetone or an etheralcohol mixture. Nitrocellulose lacquer is also very toxic and can be flammable if not handled properly. Look for lacquer cracks in high myopes for early warning. One of the more common issues with nitro finishes is residue from oils and acids in our hands will react or stick to the surface of the nitrocellulose. Two 60s lake placid blue jazzmasters but the left guitar has a nitro top coat, which has yellowed over time.
You should wear a properly fitted vapour respirator during the application and drying of nitrocellulose lacquer. Here it is, the tutorial on how to make nitrocellulose lacqure. I was recently diagnosed with myopic degeneration in my right eye, and told that i have a lacquer crack in that eye. Clear nitrocellulose lacquer 400g aerosol spray can. It would look like this clear nitro on bare wood, color coat nitro, same clear nitro on top of the color. Hazards identification highly flammable, f harmful, xn irritating to skin. I was in a store recently that sold sculpture and mold making supplies and they had quarts of nitrocellulose lacquer. Nitrocellulose lacquer is made by taking cotton and treating it with. The resulting resin is then combined with a number of fast drying solvents to produce the finished lacquer. Add to cart add to cart add to cart add to cart add to cart add to cart.
Nitrocellulose lacquer, often referred to as nitro or cellulose lacquer, is a classic finish used on cars, instruments and furniture up to 1970s. Are all or most nitrocellulose lacquers close enough to use. Nitrocellulose can appear as a pulpy, cottonlike solid when dry. There was nothing magical about nitrocellulose finishes. 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.
You can use this method over a lacquer finish that has already fish eyed if you first sand the fish eye ridges fairly level. Nitrocellulose lacquer is a material which has many uses both inside and outside the home. Not all nitrocellulose lacquer is the same, beware of inferior types which will not give as good result. This is an extremely common, somewhat expected condition on older instruments with lacquer finishes. T0122 aa857b acrylic nitrocellulose lacquer thinner page 2 of 7 may cause damage to organs through prolonged or repeated exposure. A wide variety of nitrocellulose lacquer options are available to you, there are 281 suppliers who sells nitrocellulose lacquer on, mainly located in asia. Theres a product called blush remover that might work the same way. It is admired for its high sheen and glossy quality. Lacquer is nearly as deep and clear looking, but it requires spray equipment and safety equipment. My wish is to only sell the very best quality items.
But i tried it with dollar store ping pomg balls and nothing dissolved. 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. Nitrocellulose lacquer thats closest to the old stuff. Inhalation exposure to nitrocellulose lacquer and related. For example, black over white yields white visible in the cracks. Lacquer cracks are breaks in bruchs membrane frequently observed in the posterior pole of a highly myopic eye. A properly matched spray gun needle, nozzle, and spray cap in good working order. Ping pong balls used to be made of pure nc and dissolved in acetone made a nice cheap lacquer that burned away completely. Ive done this with some success, but its iffy at best. The solvent that causes problems is lacquer thinner, which is included in nitrocellulose lacquer, cabacrylic lacquer and catalyzed lacquer.
Sand sponges are useful for sanding the curved areas of the finish. Mohawk finishing products m1020541 mohawk finishers. A lot depends on exactly what the original finish was, and how clean it is, how clean the cracks are, and so on. The lownitrogen form of nitrocellulose is soluble in.
They are still in biz, but do not make the old stuff any more and havent for decades. Nitrocellulose lacquer yellows and cracks as it ages, an effect seen on many vintage instruments ultra thin finish allows the guitar to resonate for a classic tone available in aerosol spray cans, a touchup pot for repairs, and in tins for use in spray guns and hvlp kits. Nitrocellulose lacquer expands and contracts as well when these changes occur, but it can expand and contract at different rates than does wood. How to refinish a guitar with nitrocellulose lacquer.
Compressor in good working order and drained once or twice daily and pressure regulator controls, and moisture trap installed in the air line as close. The top countries of suppliers are india, china, and india, from which the percentage of nitrocellulose thinner supply is. Harmful to aquatic organisms, may cause longterm adverse effects in the aquatic. Lacquer finishing trouble shooting guide wood finish supply. You can use this method over a lacquer finish that has already fish eyed if you first sand the fisheye ridges fairly level.
Looking for sources of nitrocellulose lacquer paint. High solids nitrocellulose lacquers lawrencemcfadden. We use a nitro sealer beneath this which is basically a nitro with some filler in it but any compatible sealer is probably ok. The nitrocellulose and acrylic components themselves act as binding agents in the paint that then need to be mixed in solvent in order to be sprayed properly onto a guitar, or indeed a car. When the paint becomes thin, just add a few new coats. I usually dont recommend trying to fix such checks, because they are often an inevitable part of the nitrocellulose lacquer aging process. Clinically, they appear as fine, irregular yellow lines, single or multiple, linear or stellate, often branching and crisscrossing at the posterior pole, usually within an area of staphyloma. In my opinion the best thing about nitrocellulose lacquer is that it is an evaporative finish, meaning that it can always be redissolved in its original solvent. The main ingredient in lacquer paint is nitrocellulose lacquer that assists in dissolving lacquer coat. They become relatively nontoxic after approximately a month since, at this point, the lacquer has evaporated most of the solvents used in its production. All my lacquer is supplied in 400ml aerosols, which have adjustable elliptical nozzles allowing a. A professional could make this almost completely invisible. Checking will vary according to the extremes the instrument has been through.
In fact, any paint or finish that contains lacquer thinner or is thinned with lacquer thinner or with any of the active solvents in lacquer thinner for example, acetone has the possibility of attacking. Jul 07, 2008 here it is, the tutorial on how to make nitrocellulose lacqure. I do custom painting projects, guitar painting, airbrushing, spray can painting, wood working, and a variety of other finishing work and tutorials. Feb 21, 2018 this works best with nitrocellulose and cabacrylic lacquer. The term lacquer is used for a number of hard and potentially shiny finishes applied to materials such as wood or metal. Gloss rubbing lacquer for pricing or to order, call. The top countries of suppliers are india, china, and india, from which the percentage of nitrocellulose lacquer supply is. That said, nitrocellulose lacquer will check spontaneously if it is applied too thickly.
The base color shows through when the crackle layer cracks. Retinal physician easily misdiagnosed retinal entities. All our sample neck colour photos show three coats of the labelled nitro tint laquer on top of a clear sanding sealer base. You cannot do any thing to prevent it but eye specialist may do further investigation like fluorescein angiography or ocular coherence tomography oct and may decide on treatment. Making your own nitrocellulose lacquer can be done using cotton and treating it with sulfuric and nitric acid. Read the directions on the nitrocellulose lacquer for application instructions. In fact, any paint or finish that contains lacquer thinner or is thinned with lacquer thinner or with any of the active solvents. A lacquer or paint finish on an acoustic instrument is designed to protect the wood from dirty fingermarks, grease, tomato sauce spills etc.
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. Mohawk finishing products m1030540 mohawk lacquer for brass satin, clear. Like any other lacquer, it can be used to finish wood products and keep painted surfaces shining, though there is much more to it than that. Depending on the manufacturing process, nitrocellulose is esterified to. Very easy to make and perfect for homemade fuses or if you need something that catches fire easily.
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