Nitrocellulose lacquer does have some nasty habits. Especially in woods with large pore it is important to apply a sealer to cover the pores and prepare the surface for applying the finish, both polyurethane and nitrocellulose guitar. Nitrocellulose lacquer expands and contracts as well when these changes occur, but it can expand and contract at different rates than does wood. Mohawk finishing products m1030540 mohawk lacquer for brass satin, clear.
That said, nitrocellulose lacquer will check spontaneously if it is applied too thickly. Nitrocellulose lacquer is also very toxic and can be flammable if not handled properly. This makes a repair a little more difficult compared to. Knowing how to evaluate the seriousness of a crack will allow you to determine whether to call a repair person immediately or whether it might be ok to leave it alone for a. Some manufacturers have added plasticizers to their nitro formulas to soften the finish and make it more resistant to checking. Mohawk finishing products m1020541 mohawk finishers choice. Checking cracking a nitro guitar finish nitrocellulose.
The idea is, you want the solvent to dissolve the edges of the cracks and make them flow into each other. Mohawk finishing products m1020451 finishers choice clear nitrocellulose lacquer flat. The top countries of suppliers are india, china, and india, from which the percentage of nitrocellulose lacquer supply is 3%, 87%, and 3% respectively. 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. A good example here is gibson famous for old cracked lacquer finishes. Dec 20, 2017 need to remove some lacquer from a guitar or some furniture. About a year ago mid life crisis i purchased a 20 lp standard quilted top which i love and continues to inspire me to improve. But i tried it with dollar store ping pomg balls and nothing dissolved. Boutique makers are more likely to allow double that time.
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. I would search for other names of nitrocellulose lacquer, there is a link below. I realize that many here use behlen nitrocellulose stringed instrument lacquer for their finishes. We have the nitrocellulose lacquer sealer spray or can and polyurethane. This makes a repair a little more difficult compared to a stained, clearcoated top. 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. Question i am using a nitrocellulose lacquer finish and i am looking to get a hairline cracked effect to make it look aged. The finish on those instruments is often twice as thick as martins or even significantly more that that. Immediately flush eyes with plenty of water for at least 15 minutes while holding eyelids open. 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.
Nitrocellulose lacquer, often referred to as nitro or cellulose lacquer, is a classic finish used on cars, instruments and furniture up to 1970s. Surface looks as if the lacquer boiled and remained. The alcohol in the shellac isnt a solvent for the oil. I was in a store recently that sold sculpture and mold making supplies and they had quarts of nitrocellulose lacquer. Depending on the manufacturing process, nitrocellulose is esterified to varying degrees.
Looking for sources of nitrocellulose lacquer paint. These products are designed to offer high hiding properties along with perfect leveling to offer a. Sand sponges are useful for sanding the curved areas of the finish. Very easy to make and perfect for homemade fuses or if you need something that catches fire easily. Ping pong balls used to be made of pure nc and dissolved in acetone made a nice cheap lacquer that burned away completely. Lacquer cracks are uncommon findings in the posterior pole of highly myopic eyes with a prevalence ranging from 4. I was trying to make some nitrocellulose lacquer colloidion, etc to seal and waterproof some paper cartridges.
Clear nitrocellulose lacquer 400g aerosol spray can. It is a clear liquid to semisolid when dissolved in alcohol, acetone or an etheralcohol mixture. The trick is to build a thickness of lacquer without wetting the surface. Depending on the manufacturing process, nitrocellulose is esterified to. I was recently diagnosed with myopic degeneration in my right eye, and told that i have a lacquer crack in that eye.
Nitrocellulose lacquer thats closest to the old stuff. 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. Looking for sources of nitrocellulose lacquer paint is. Note lacquer should only be used in a well ventilated area. Theres a product called blush remover that might work the same way. Nitrocellulose lacquer definition of nitrocellulose lacquer. Behlen stringed instrument lacquer can instructions. Retinal physician easily misdiagnosed retinal entities. Nitrocellulose lacquer i told him how oxnard wasnt producing guitars yet with nitro, and that we had heard about problems and challenges theyre experiencing. These distinctive fundus changes are actually quite common in axial myopia and may.
You can use this method over a lacquer finish that has already fish eyed if you first sand the fisheye ridges fairly level. The lownitrogen form of nitrocellulose is soluble in. The epa also has iris, that should have information on the different solvents plus the doesresponse and exposure. The top countries of suppliers are india, china, and india, from which the percentage of nitrocellulose lacquer supply is. A short tutorial showing how to get that cracking checking effect on a nitrocellulose guitar finish. How much unthinned celly lacquer approx is needed for spraying one electric guitar. Gloss rubbing lacquer for pricing or to order, call. The term lacquer is used for a number of hard and potentially shiny finishes applied to materials such as wood or metal. A wide variety of nitrocellulose lacquer options are available to you, there are 281 suppliers who sells nitrocellulose lacquer on, mainly located in asia. A lacquer or paint finish on an acoustic instrument is designed to protect the wood from dirty fingermarks, grease, tomato sauce spills etc. Here it is, the tutorial on how to make nitrocellulose lacqure. This type of lacquer, which dries quickly is used in auto finishes and on wood. Crackling lacquer quick transitions between heat and cold are another way to create a crackle effect in a lacquer finish.
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. T0122 aa857b acrylic nitrocellulose lacquer thinner page 3 of 7 4. Edmund flaherty, a chemist working for the dupont chemical company, is credited for inventing nitrocellulose lacquer in 1921. May 16, 2009 that said, nitrocellulose lacquer will check spontaneously if it is applied too thickly. Read the directions on the nitrocellulose lacquer for application instructions. Mohawk finishing products m1020451 finishers choice clear nitrocellulose lacquer flat mohawk ultraflo clear lacquer satin mohawk finishing products m1030540 mohawk lacquer for brass satin, clear. Gibson had a lot of humidity problems to deal with. The resulting resin is then combined with a number of fast drying solvents to produce the finished lacquer.
How to repair cracks in your acoustic guitar guitar alliance. Nitrocellulose lacquer definition of nitrocellulose. Any of various pulpy or cottonlike polymers derived from cellulose treated with nitric and sulfuric acids and used in the manufacture of explosives. High solids nitrocellulose lacquers lawrencemcfadden lacquers. Inhalation exposure to nitrocellulose lacquer and related. Dyes guitar nitortint are concentrated dyes specific to paint guitars, available in various packaging and finishes, water or solvent and spray or bottle of 250 ml primers developed by specific nitorlack to paint guitar are intended to prepare the surface for topcoat application. If youre spraying lacquer over the shellac, avoid really wet coats because the lacquer thinner in the finish could dissolve through the shellac. Flush skin with soap and water while removing contaminated clothing.
Nitrocellulose lacquer has an inherent tendency to crack sooner or later. 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. Feb 18, 2011 the idea is, you want the solvent to dissolve the edges of the cracks and make them flow into each other. Duralaq 275 voc pigmented white nitrocellulose lacquer 1m. 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. Making your own nitrocellulose lacquer can be done using cotton and treating it with sulfuric and nitric acid. Too heavy of a film buildup of lacquer at one time. High solids nitrocellulose lacquers lawrencemcfadden. Im not saying nitrocellulose lacquer finishes arent good finishes, and arent good for a guitars tone, but they dont allow the wood to breathe. One of the most disappointing of those is the tendency to check or crack with a sudden drop in temperature. How to refinish a guitar with nitrocellulose lacquer. Lacquer is nearly as deep and clear looking, but it requires spray equipment and safety equipment. You should wear a properly fitted vapour respirator during the application and drying of nitrocellulose lacquer. Many factories get by with around ten days for an entire nitrocellulose lacquer finish.
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 is an explosive compound produced by the reaction of cellulose and nitric acid, or other strong nitrating agent. 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. A lot depends on exactly what the original finish was, and how clean it is, how clean the cracks are, and so on. It can be spot repaired easily and when buffed, shows a beautifull shine. Two 60s lake placid blue jazzmasters but the left guitar has a nitro top coat, which has yellowed over time. 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.
Feb 21, 2018 this works best with nitrocellulose and cabacrylic lacquer. Ive done this with some success, but its iffy at best. 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 a warm environment. 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. To my eyes your guitar looks like finished with a tinted coat. Mohawk finishing products m1020541 mohawk finishers. Lacquer cracks are breaks in bruchs membrane frequently observed in the posterior pole of a highly myopic eye. Crackingcrazingchecking from temperature and humidity changes is a well known issue of nitrocellulose lacquer finishes.
Unfollow nitrocellulose lacquer to stop getting updates on your ebay feed. A discussion started in 2002 but continuing through 2019. 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. It is normally applied as lacquer spray paint with polish to improve the furniture appearance and durability. Need to remove some lacquer from a guitar or some furniture. 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. Its hard to say as there are so many variables such as finish thickness and how good your technique is. While no longer used to lacquer automobiles it remains a popular finish for guitars and furniture, particularly on vintage restoration and reproduction pieces. Jul 07, 2008 here it is, the tutorial on how to make nitrocellulose lacqure. Forming a very thin layer it allows the wood to resonate freely with little restraint.
Lacquer grade of soluble nitrocellulose is closely related to the more highly nitrated form which is used to make explosives. Jan 02, 2016 hi all, im a total newbie to this site, and not a very good guitar player. With my thicker finish fill, i like to have a solid three weeks at least for a really good cure, after the last coat is applied. They are still in biz, but do not make the old stuff any more and havent for decades. Looking for sources of nitrocellulose lacquer paint is it. R5253 harmful to aquatic organisms, may cause longterm adverse effects in the. Are all or most nitrocellulose lacquers close enough to use. Nitrocellulose lacquer has been used on guitars since the fifties and sixties because of its excellent characteristics. They become relatively nontoxic after approximately a month since, at this point, the lacquer has evaporated most of the solvents used in its production. 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. I bought a couple but am wondering if it will work as well for instruments. All our sample neck colour photos show three coats of the labelled nitro tint laquer on top of a clear sanding sealer base. Dec 09, 2014 when that happens, the wood expands at rates different than does the lacquer, and thats how nitro usually cracks.
Before you apply the lacquer, be sure all of the rough spots are smoothed and the old finish has been stripped evenly. Add to cart add to cart add to cart add to cart add to cart add to cart. Lacquer finish implies a surface finish that creates a fine smooth wood layer on furniture to improve its functional characteristics. Seal the silicone in the wood with a sprayed coat of shellac. It is admired for its high sheen and glossy quality. Ultralaq 275 voc white precatalyzed lacquer ultralaq 275 voc water white precatalyzed nitrocellulose lacquer duralaq 275 voc water white nitrocellulose lacquer duralaq 275 voc production high build nitrocellulose lacquer duralaq 275 voc pigmented white nitrocellulose lacquer duralaq 275 voc white undercoater megavar 275 voc water white conversion varnish 275. How to repair cracks in your acoustic guitar if you own an acoustic guitar long enough, chances are good that youll have to deal with the repair of a crack in the wood. I usually dont recommend trying to fix such checks, because they are often an inevitable part of the nitrocellulose lacquer aging process. Remove the silicone from the wood in the same way you would remove any oil. 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.
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