Nitro lacquer cracks eye

After the first day of drying, the lacquer will have lost a majority of its volatile solvent, and it may even feel hard enough to level and polish. I realize that many here use behlen nitrocellulose stringed instrument lacquer for their finishes. Lacqueryielding trees in thailand, vietnam, burma and taiwan, called thitsi, are slightly different. Peripheral lacquer cracks as an early finding in pathological. Ohio valley nitro specializes in providing guitar building and refinishing enthusiast quality nitrocellulose aerosol paint products in 12oz. I thought the plug was not in correctly so i kept pumping it out. That said, in our many discussions on finishes, we always seem to rally around the notion that the reason we use lacquer is that it is so easy to repair. Checking cracking a nitro guitar finish nitrocellulose relic tutorial duration. Everything you ever wanted to know about nitro guitar finishes. June 25, 2016 dusting lacquer shellac solvent surface the finishing store waterbased wood woodfinishing woodwork woodworking wrinkle. If your kit was done in nitro or even acrylics it would be a much simpler fix. I was in a store recently that sold sculpture and mold making supplies and they had quarts of nitrocellulose lacquer. Discussion in the hokey ass message board started by truckrodder, apr 6.

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. Nitrocellulose is a highly flammable compound formed by nitrating cellulose through exposure. Nitro is made from wood so it allows the wood to breathe and resonate naturally, improving the tone. Oct, 2012 myopic macular degeneration, lacquer cracks imaging device fundus camera description lacquer cracks related files. Lacquer cracks are found in the posterior fundus of 4. Nitrocellulose lacquer does have some nasty habits. Theres a gibson forum thread on the web now on which henry j the owner goes on at length about the chemistry and working qualities of nitro lacquer thats pure folklore. I can even duplicate the depth of finish of the old lacquers with todays single stage. I usually dont recommend trying to fix such checks, because they are often an inevitable part of the nitrocellulose lacquer aging process. Lacquer cracks observed in peripheral fundus of eyes with high.

Spontaneous lacquer crack lesions in the retinopathy, globe. Some new epiphones have nitrocellulose laquer finishes. Depending on the manufacturing process, nitrocellulose is esterified to. All my lacquer is supplied in 400ml aerosols, which have adjustable elliptical nozzles allowing a vertical or horizontal fan. 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. In the present study, diffuse atrophy was defined as yellowish fundus without lacquer cracks. Bubbles in nitro lacquer finish help the gear page. Anyone servicing the wood finishing market should be able to get nc lacquer, the challenge maybe the quantities. Is this something that can be easily repaired by a violin or. One longstanding claim in particular is that the finish affects the tone, with nitro finishes being at the top of the tone heap and poly finishes at the bottom because of their supposed blanketing effect. Lacquer crack lesions in pathologic myopia sciencedirect. At the end of the day lacquer to me is the easiest to apply and touchup, and it feels the best under my hands, thats why i use it.

Looking for sources of nitrocellulose lacquer paint is it. Retinal physician easily misdiagnosed retinal entities. Depending on the manufacturing process, nitrocellulose is esterified to varying degrees. Lacquer cracks are typical clinical findings in a highly myopic fundus and should alert the clinician to the possibility of retinal hemorrhage with or without cnvm. All my lacquer is supplied in 400ml aerosols, which have adjustable elliptical nozzles allowing a. Hi doctor, my eye doctor found small lacquer cracks near the center of my right eye. There, the low mass, thinness and hardness of a nitro finish matches well with the light, thin, stiff spruce tops of violins and cellos. One of the most disappointing of those is the tendency to check or crack with a sudden drop in temperature. That said, in our many discussions on finishes, we always seem to rally around the notion that the reason we use lacquer is. 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.

Ocular response to formdeprivation and lens induced defocus is evident. In reality the lacquer is microns thick so it wont affect the instrument. Methodsthe authors studied 66 eyes 53 patients with lacquer cracks, using general ocular examinations and fluorescein angiography once every 3 to 12 months. Resultsthe lacquer cracks progressed in 37 eyes 56.

Ophthalmologists should be aware that there are numerous systemic diseases associated with angioid streaks, the most common being pseudoxanthoma elasticum. Your eye is drawn to it every time you open the case. Results lacquer crack is associated with decreased choroidal. The progression of lacquer cracks in pathologic myopia. He said something that i had not heard, namely, that after spraying nitro on a guitar, you.

My experience was with precat lacquers, not the cab acrylic, but reading the data sheets i can tell the cab stuff will have the same problems. 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. How to refinish a guitar with nitrocellulose lacquer. Looking for sources of nitro cellulose lacquer paint. Choose a lacquer repair kit which contains the substances that you can use to fill the cracks in the lacquer. Apply this paste into the cracks and gently smooth it down.

Before either solvent rinse, clean with naptha for any oily places. Lacquer crack means that there is break in bruchs membrane it is a significant finding as you are at risk of getting cnvm choroidal neovascular membranes, which means new blood vessels will start forming. At any rate, contrary to what it looks like, i am 98% sure that the nick is just in the finish, not the wood it is the lighting of the photo that creates the illusion. A short tutorial showing how to get that cracking checking effect on a nitrocellulose guitar finish. The end result is similar but softer than the chinese or japanese lacquer. Myopia is a major threat for vision health across the world. Ok, call me morbid, but i was looking at 50s and 60s j45s over the weekend. Many of our colors are formulated to match those used by fender and gibson. Jan 29, 2018 nitrocellulose lacquer can give a beautiful finish if its used properly. Its been years, but my approach to nitro lacquer was about the same using lacquer thinner, steel wool, scotch bright except 1. At least with this supplier if it says nitro there is no acrylic or urethane components and no what guitar guys love to call plasticizers.

Wherever the new lacquers solvents touch the original lacquer, they will soften and cause that area to expand a bit in the process. This may be due, in part, to the association of lacquer cracks with highly myopic patients in whom lasik is nowadays not indicated as a primary surgical procedure. Lacquer finishing problems nitrocellulose lacquers. A thorough macular examination and peripheral depressed examination are key to detecting complications related to pathologic myopia. As luck would have it, my 5 year old attacked me while i was playing, resulting in the nick in the finish in the image below boy meets music stand meets mandolin. Like the precat stuff, the cab acrylic lacquer is a three coat system, a vinyl sealer coat then two top coats. A lacquer or paint finish on an acoustic instrument is designed to protect the wood from dirty fingermarks, grease, tomato sauce spills etc. Tips for completing and caring for your nitro lacquer finished guitar. Find lacquer cracks information, treatments for lacquer cracks and lacquer cracks symptoms. Apr 19, 20 lacquer cracks conditionkeywords pathologic myopia, lacquer cracks imaging device fundus camera description color fundus photograph of a 48yearold woman with lacquer cracks in the setting of pathologic myopia. Lacquer cracks observed in peripheral fundus of eyes with high myopia. Choroidal thickness and biometric markers for the screening of.

If your electric guitar has a worndown or otherwise damaged finish, you can refinish it with a nitrocellulose lacquer, giving your axe a nice new look. This is the only case of a lacquer crack appearing in a large series. To investigate the relationship between simple hemorrhage sh associated with lacquer crack. We considered lacquer cracks fig 1b 1b as a separate category in the present study because a previous report described an important relation between myopic cnv and lacquer cracks. Looking for sources of nitrocellulose lacquer paint. Checking cracking a nitro guitar finish nitrocellulose. Vigorous eye rubbing has also been advocated as a possible predisposing factor to lacquer crack formation. Well i went out today and the boat kept taking on water. I bought a couple but am wondering if it will work as well for instruments. Because it is so slick, silicone causes fish eye the finish bunching up in ridges as it flows away from areas.

I told him how oxnard wasnt producing guitars yet with nitro, and that we had heard about problems and challenges theyre experiencing. Apply shellac to main body of the floor using a lambs wool applicator following the grain of the wood. Angioid streaks are bilateral, narrow, irregular lines deep to the retina configured in a radiating fashion emanating from the optic disc, which result from breaks in a weakened bruchs membrane. You can stress the wood causing cracks to develop both in the finish as well as into the wood itself. Photograph shows the lacquer crack inferior to fovea. This is the left eye of a 40yearold woman with visual acuity of 2070. Lacquer finishing trouble shooting guide wood finish supply. 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. Same oversize fholes, which unfortunately part from the graceful lines of original gibsons, but the naturalbodied version is a nice addition. The firm that supplies our nitro also supplies the pigments and does the color matching mixing and tinting for us as well. In all, 66 consecutive myopic cnv patients treated with photodynamic therapy andor intravitreal. The resulting resin is then combined with a number of fast drying solvents to produce the finished lacquer. Now that you have a clean and scratch free finish you can concentrate on filling the cracks. Jun 01, 2007 lacquer cracks are clinically noted in 4.

May 16, 2009 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. New york, new york pathologic myopia is a major cause of blindness, the incapacitating visual effects of which occur commonly during the pro ductive years of young adulthood. Look for lacquer cracks in high myopes for early warning. Lacquer crack lesion lcl, a complication of myopia in human patients, is characterized by loss of retinal pigment epithelium and breaks in bruchs membrane. The only thing harder for me was differential calculus. 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. When i got in i crawled under boat out of curiosity and noticed stress cracks around the rivets alond the outside edge of boat. I was recently diagnosed with myopic degeneration in my right eye, and told that i have a lacquer crack in that eye. The only times i have used it were for weird, or fussy customers who insisted on it. Being an authorized gibson anything is guarantee of no knowledge of historical finishes, or even about nitro.

A discussion started in 2002 but continuing through 2019. Mitsuki suga, kosei shinohara, and kyoko ohnomatsui. The analysis of lacquer crack in the assessment of myopic. Most modern drums are finished in polys because poly doesnt age, is not really susceptible to yellowing and spider cracks. This report describes comparable lesions in the retinopathy, globe enlarged rge chick. Some beat up, some nicely cared for but well played, and one or two near mint. Are all or most nitrocellulose lacquers close enough to use. Nitro lacquer finishes come to us via the world of classical stringed instruments. I needed some to heal some lacquer cracks in an instrument that turned out to be polysomething rather than.

I was in my local guitar shop yesterday for strings and while chatting with the owner the question of nitro as an instrument finish arose when i told him that a uk company in manchester had recently started selling spray cans of it and i thought it may have been of interest to him. I spoke with an experienced luthier last night at a thanksgiving dinner and we got on the subject of nitrocellulose lacquer, with which he has work experience. Aug 04, 2018 the only one ive ever done in black nitro lacquer. Latephase fluorescein angiogram reveals hyperfluorescence characteristic of cnvm and. It would look like this clear nitro on bare wood, color coat nitro, same clear nitro on top of the color. If youre going to be working with it, there are some things you should know. Tips for completing and caring for knappster guitar. Fender did nitro over fullerplast which was a thick undercoating that the guitars were dipped in. Longterm natural outcomes of simple hemorrhage associated. I doubt theres any problem in finishing more frustrating than fish eye. Look for lacquer cracks in high myopes for early warning of. This will fill the gaps but it will always be slightly visible. Jan 15, 2014 over the course of four years, the patients left eye has exhibited progression of chorioretinal atrophy and recurrences of choroidal neovascularization with asneeded treatment and visual acuity of 20200, while the right eye has had a stable lacquer crack.

I cant tell you the number of times in the past like you i have had to start over on a failed lacquer 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. Several vintage as well as modern day high end guitar manufactures use nitrocellulose lacquer on their products. Im debating on returning the guitar, but i sound hypocritical in that the cracks are ok but the bubbles bother me. When fender started doing nitro finishes on some of th emass produced guitars, guys were up in arms that they had a urethane or epoxy undercoating similar to the old fullerplast treatment.

Recently, the doctor has found lacquer cracks in my eyes. 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. Nitrocellulose lacquer is a material which has many uses both inside and outside the home. Nitrocellulose lacquer was used as a finish on guitars and saxophones for most of the 20th. Burmese lacquer sets slower, and is painted by craftsmens hands without using brushes. 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. The aim of this study was to clarify the characteristic findings in myopic choroidal neovascularization cnv and the relationship with lacquer crack lc. This works best with nitrocellulose and cabacrylic lacquer. Apr 06, 2006 no reason at all to use lacquer any more. 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. Lacquer cracks in pathologic myopia retina image bank.

We use nitrocellulose lacquer and standard nitro compatible pigments for color mixes. I was hoping that someone here might be able to help me with another finish related issue. Apply shellac to 2 or 3 board widths at a time, laying the product down in a. In eyes with lacquer cracks, stellate lacquer cracks are associated with thinner. I was also using a commercial brand of nitro which was definitely a problem when used on wood.

Looking for sources of nitrocellulose lacquer paint is. In particular, lacquer cracks, myopic schisis, or choroidal neovascularization in the macula area and holes or tears in the periphery of the retina. Jan, 2016 many guitarists, particularly those who love vintage instruments, believe everything affects the sound of those great old guitars we love so much. We use a nitro sealer beneath this which is basically a nitro with some filler in it but any compatible sealer is probably ok. You should wear a properly fitted vapour respirator during the application and drying of nitrocellulose lacquer. 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.

Emerson, md, phd retina center of minnesota coauthors. 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. I have tried a few non nitro lacquers and have had problems with finish cracking. All of them had fairly significant lacquer crazing, especially on the top sheet. The authors studied 66 eyes 53 patients with lacquer cracks, using general ocular examinations and fluorescein angiography once every 3 to 12. Nitrocellulose lacquer can give a beautiful finish if its used properly. The ad copy makes it sound like theyre going for a vos effect in the finish. At what point will our 2000 vintage models start to do the s. Patchy atrophy and lacquer cracks predispose to the. A properly matched spray gun needle, nozzle, and spray cap in good working order. Fine wood finishing using shellac natural handyman. Nitrocellulose lacquer is made by taking cotton and treating it with.