Q. 1) Sand out all defects with a 90 deg hand sander using 180 grit disk pad. Stainless steel can have a very shiny mirror-like finish. 4 finish. Either sand the surface by hand, or using a sanding tool. Wash the aluminum using a liquid dish detergent. 2) Go over entire part with Trizact A45 using hand drum sander. affil. Polished Stainless Steel or othe Mirror Finish I've just upgraded to 2015 Navisworks Simulate and when applying polished stainless steel or any chrome like finish to solids it shows up as a shiny dark gray. A finer abrasive will create a lighter brushed finish. (You're on the 1st page of this topic) The glossy look does take time, patience and methodical work. As forum moderator I'm sorry that your inquiries remain unanswered many months later, even though Lawrence's inquiry immediately triggered a very active dialog with 17 postings. if you want to achieve a mirror finish you will need to use wet/dry sandpaper working your way up from 600 to 5000 grit using silicone oil to reduce friction. A. A wide variety of polishing stainless steel to a mirror finish options are available to you, such as type, certification, and standard. 301 is also not an issue. How to polish stainless steel to a mirror finish. link Use a light oil to thin your polishing compounds and pastes if they are too heavy. We have polished smaller parts in the past for the medical industry just nothing of this size and magnitude. however we are still getting a pitted surface. We receive the SS sheet of material with a brushed looking finish on them. Something else, can you get diamond paste 15 and some hair brushes? I can speak about low volume, relatively large and heavy parts with complex and selective surfaces to be polished to A-1 (mirror class defined by the Society of Plastics Engineers close to optically perfect with a total roughness and waviness value around 2 or less microinches). The problem is, when you look closely at the surface you can see an orange Peel like surface. Your questions are very broad & general (requiring answers of many pages, usually better met by being patiently tutored by a book than a terse forum response); and you've revealed nothing about your job, your situation, what your tried already, what problems you encountered when you tried them, and what you didn't try yet. What is the machine you use and the type of abrasive you use? They are roughly four foot square but have an odd shape. This technique works for just about anything--furniture, automobiles, guitars, etc. Properly finished stainless steel is easier to keep clean for hygienic and commercial applications, such as hospitals and restaurants. (90 deg to last cut) Mirror finish stainless steel sinks can add a modern touch to your home, but they require frequent care and cleaning to look their best. Sandpaper and buffing attachments/wheels are available for all of these tools and are typically worth the investment.That being said, power tools aren’t necessary. If you have something that’s more of a showpiece and you want to make sure there are no fingerprints left behind, you can use a little eco-friendly glass cleaner. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. A. Is it possible that we are not going deep enough at the … #4 Finish - Also called brushed, di-rectional or satin finish A number 4 finish, characterized by fine polish- ing grit lines that are uniform and directional in appearance. The orange peel should go away. If you go 90 degrees to the last operation you will be able to see the lines you have not taken out yet. start with a course sand paper, the grade being dependent on the original condition of the finish of the surface. ©1995-2021 finishing.com, Inc., Pine Beach, NJ, How Google uses data when you visit this site. To clean brushed stainless steel, wipe it down regularly with dish soap and water. For large volume of small parts you'll have to ask a mass finisher. - YouTube We are now able to produce the mirror polished finish that we were trying to obtain. A. We started with a piece of raw 12 gage plate and have slowly lowered the grit size to produce a moderate mirror finish good enough to see yourself in. Where can we purchase the Oil and Mold makers' stones? A.) Electropolishing is not an option as my parts are 7 feet tall by 12 feet long by 4 feet deep. Start of suggested clip. About 0% of these are Abrasive Tools, 0% are Abrasives. If you read the previous post you will hear this over and over. This is by far the best sanding belts we have found to date. The benefit to a mirror finish, is not just that it looks great, but that it is highly corrosion resistant. 5. AF Were could I get information on a large mass finishing machine. Thank You for all the responses! For the best experience on our site, be sure to turn on Javascript in your browser. I want to share the information that we found on our quest in hopes that it will help others obtain their goals. Regarding the polished finish, the stainless steel watch can have a satin or a grained finish or a mirror/ brightened polish. Q. Lawrence: We are having a problem Polishing a 301 Stainless Steel part to a mirror finish. The brushed steel finish is produced by applying friction to the surface of the metal. In consumer p… A. Reread your info. A. O.K. But any thing below that would be really not a great idea. Laurence, you are my new best friend! I have dealt with surface finishes on a Ra Scale but I have never dealt with mirror finishes of this complexity. For the best experience on our site, be sure to turn on Javascript in your browser. Have the welder bend and weld it, then polish tiny marks (if there are any) left by the bender. Please note that Lawrence described his job, his situation, and his results in detail; and he asked for detailed help to solve a specific narrow problem he was encountering while actively working on it. 1. })}); Not a lecture hall but a roundtable with a seat for you! Q. I have a flat sheet of stainless steel. Did you ever explore using Engineered abrasives. All polishing compounds have been on our shelf for less than 1 month. Too much pressure might cause overheating and discoloration. If this layer forms before you have removed all the scratches one will try to remove the scratches with a grit or sandpaper that is not coarse enough the remove this layer. How do I do this. from Abe Books A mirror polish finish is achieved by pre-grinding the metal to remove surface defects, and then bright-buffing the metal to a smooth, reflective finish. This is the general-purpose cold-rolled finish that can be used as is, or a preliminary step to polishing. The correct sequence depends on what you or your customer define by mirror, the volume of parts, their weight and surface geometry among other variables. We put it on a hand drum sander with an air pneumatic drum (Dynisher). This is a form of brushed metal that is created by polishing the metal with a 120 to 180 grit belt before it is softened with a lower-grit greaseless compound or abrasive pad. Steel is commonly used for home appliances and mixed media art projects for its smooth, pristine appearance. 3. I feel that 12 gauge is not such an issue. Press the stainless steel against the wheel, applying slight pressure. Any suggestions on the total polishing process will be greatly appreciated. I was referring to the sandpaper and diamond past we were using. Now that our bright areas are polished to a mirror finish, we will put the matte/brushed finish back on to the other areas. End of suggested clip. We are then sanding it with 180, 240, 600 & 4/0 grit sandpaper. Hi, L.S., Kenneth, and Thanm. I was ending up with an uneven "granularity" that looked like a cross between brushed stainless and smeared fingerprints. The final abrasive used in the process is 150 to 220 grit. } (adsbygoogle = window.adsbygoogle || []).push({}); Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. Our specially formulated Stainless Steel Polishing Compound has been especially designed to finish stainless steel to a high luster mirror like finish. "background": "#237afc" If not you must. A. Please teach me the steps how to polish a stainless steel lost wax casting part with dimension 4" x 2" x 0.25" to mirrorable. I am the Quality Manager at a Precision Machine Shop where we make parts for the Military, NASA, Aviation Industry and Medical Industry. Are you using any lubrication or cooling media, if yes I would also like to understand that too. We are also using Nushine II made by Nuvite for the final polishing. No worries about fingerprints. Sorry about my confusion on size. }); 2007 but continuing through 2020. This statement "We started with a piece of raw 12 gage plate and have slowly lowered the grit size to produce a moderate mirror finish good enough to see yourself in. It is obtained by a final light roll pass of the sheet through polished rolls. elements_selector: "iframe" Please see if you can get the kind of help which Lawrence got by posting in his style if you can. "button": { or. Polishing Stainless Steel to a Mirror Finish < Prev. Some prefer to add texture to the steel by giving it a brushed look. A. Dear Lawrence, We found that too much downward pressure is counter productive. Next page >. They are low volume now but may become higher in the future. Follow their advice they are right! ? link As with the stainless steel, you can achieve a chrome-like mirror finish on an aluminium surface. My name is Lawrence. It does not get the lines out faster! Thanks in advance. What is size of your component? "background": "#fff", (90 deg to last cut) Q. I hope you are well! 3) Don't put too much pressure on your tool. "Lapping and Polishing Handbook" ", indicates to me you are blasting these parts before trying to polish. It actually creates larger grain lines forcing you to back up a polishing step or two just to get the grain out (It also wears belt out prematurely). Thank you for the feedback. Polishing helps in getting rid of such rust spots and also protects the gun against it. For large projects (cars), power sanders and buffers are helpful. During brushing, an abrasive material is rubbed over the surface to create many small scratches. Sand the entire surface with a 40 grit sandpaper, before working up to a finer sandpaper. Are you getting scattered pits or are they throughout the surface. Stainless Steel Polishing Compound, 1 lb. I would like to bring the mirror look out in it. Thanks! Finish Type. Polishing of any type improves the texture, appearance and consistency of stainless steel. No matter which method you use, make sure to wipe your … It resembles a very hazy mirror, with some reflection evident. How to Polish Stainless Steel Gun. And, above all, patience...a lot of patience. Right now we are using hand power tools. Could it be proportionally around 2000 according to the depth of lines left? 3) Go over entire part with Trizact A16 using hand drum sander. Any problems with that, ask me. new LazyLoad({ } "Stainless Steel for Design Engineers" A bright, cold-rolled finish is the most commonly "Mill" finish for light gauge stainless steel sheet. Some stainless steel can have a brushed finish, which gives the surface a non-reflective dull surface, as if brushed by a fine-bristled brush. from Abe Books Using stitched cotton mops and grain pastes, you simply work your way through finer grains … Finer grit lines and higher reflectivity than n No. Try cleaning your sink with a paste of baking soda and water. The orange peel you're seeing is due to large grain size. affil. Satin Finish Stainless Steel Balustrade A satin finish lacks the brilliant sheen of a mirror polish finish. Thank You in advance! Much too expensive and questionable results. The orange peel is cause by a combination of things. I would say it is about a 64 Ra finish. This is due to the polishing procedure which removes deep scratches which can harbor corrosive particles. #6 Finish - Polished finish achieved with the equivalent of a 240-grit abrasive. Is it possible that we are not going deep enough at the first stages to cut this out of the stock or could it be something in our process? Q. Several well known brands (Boride, DME and Gesswein) come to mind. A. Q. Hi everyone, just cut to length (leave a little extra), and chuck it up to your power drill and sand away. it's easy to polish when the steel is in a straight stick form. 4. Good luck. Start by using the polyimide tape to protect the bright polished areas you just did from getting a brushed finish. We receive the SS sheet of material with a brushed looking finish on them. Ra of 1 microinch even in 11 GA material has not been a problem. They have a window opening in them making them around three inches wide from the outside of the part to the inside cut out. The type of finish you choose can be an asset or a liability in the kitchen. Q. Hello Everyone! How do I get the shine back on my stainless steel sink? You will need to work methodically to get this shiny finish. I am also looking for a way to avoid or quickly remove this layer. We invited 3M to come out to our facility and they recommended a product line called the Trizact series. Power tools are magic when it comes to polishing. link 1) One of the biggest things we learned is not to rush through the polishing steps. 2. How close are you after that paper to a reflecting surface? ©1995-2021 finishing.com, Inc., Pine Beach, NJ - About finishing.com - Privacy Policy The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. Q. AF the size of the part in the 3rd post. How to polish stainless steel to a mirror finish. DON'T DO THAT! Using oil has helped a lot (Thanks Guillermo for that tip!) You'd be amazed how well a green scotch brite works on stainless steel for a brushed finish, all I can say is try it as for using compounds and mops for polishing, I use them all the time to polish my motorcycle parts, especially alloy to a mirror finish so I know lol "Stainless Steels" How can we get rid of this and bring the luster out better? The mirror finish on stainless steel enhances its appearance and consistency, making its cleaning easier. window.addEventListener("load", function(){ It is a must to determine where you start! From there we are polishing with diamond past grade #6, #3 & # 1. How do I clean and remove the scratches? Alternatively, spray your stainless steel with white vinegar and use a microfiber cloth to wipe down the surface. If this is plain steel you'll also need to apply a water based polyurethane finish to protect it. "palette": { A lot of people ask what the need to polish a gun is. YouTube. Alibaba.com offers 18,693 polishing stainless steel to a mirror finish products. These parts are for the outside surface of an aircraft window. It also masks the after-effects of welding and hides surface damage, if any. Keep in mind that SS has a very low thermal conductivity so it builds up heat quite fast. Using oil has helped a lot (Thanks Guillermo for that tip!) Good luck. }, The heat and friction of the spinning wheel will be enough to transfer a small amount of the compound onto the wheel for polishing. If you need a product/service, please check these Directories: Jobshops Capital Equip. I would say it is about a 64 Ra finish. by ASM To apply, simply spin a buffing wheel on a motor or drill and gently press the compound to the wheel. Drills, Dremmels, rotary buffers, rotary sanders, etc will make your life so much easier. That's It! How to Sand And Polish Stainless Steel to Mirror Finish – YouTube. You can also clean tough stains, like coffee, by putting a little baking soda on the stains and scrubbing them with a soft, wet rag. Is there an electrostatic solution to this problem? The stick will melt into the buffing wheel. However, the raw material substrate must be from the best steel mills in the world to avoid problems with pits and pinholes. Explain to me please. affil. Begin by sanding the surface with a coarse sandpaper, around a 40 grit. A very clean environment (including hands, cloths and hair of the operator). Then I came across this thread and read Laurence's words: "If you go 90 degrees to the last operation you will be able to see the lines you have not taken out yet." Large hardware stores or those specialized on abrasives will have the stones or just type "polishing mold maker stones" on a search engine. Mirror polish finish as you described is not a problem in sheet form (4'x 10') up to 11 GA or 3.0 mm thick. 6. They are roughly four foot square but have an odd shape. A discussion started in The smoother you get the aluminium, the more mirror-like it will be when you are finished. Well-polished aluminum can look like chrome but it takes time, effort and patience to get the glossy mirror finish. window.cookieconsent.initialise({ Nam. Rotary Tools, Attachments, Chucks & Mandrels, Skip to the beginning of the images gallery. This method would work well on something like a tealight holder. Please note the following; 119 seconds. Mechanical grinding of the surface causes a "Bielby Layer" to form. The most important thing to keep in mind when polishing aluminum is that the smoother you get the surface, the more mirror-like it will be when you are finished. Give'em a chance at moderate speed. They are bent to the shape of the aircraft within .06 (in) and they have countersunk holes about every inch or so. I no longer have access to 2014. Well, there is a list of reasons that answer this question: Although stainless steel is resistant to rust, it can still corrode. or. I can see right now that our environment is going to be a problem because we sand blast in the same area. I noticed you are using 4/0 paper, we don't use that number here. They have a window opening in them making them around three inches wide from the outside of the part to the inside cut out. Mirror finish. For finishing stainless steel to a mirror like finish Not recommended for buffing plastics and softer metals such as gold and silver Applied on buffing wheels. To apply, simply spin a buffing wheel on a motor or drill and gently press the compound to the wheel. new LazyLoad(); There are a large variety of decorative finishes available, so it is key to find out the most suitable finish for the application needed. Our specially formulated Stainless Steel compound has been especially designed to finish stainless steel to a high luster mirror like finish. I'm having the same problem (more or less). Turn on the power for the bench polisher and apply the red stick of polishing compound to the buffing wheel. But for small things, it's gr… The grinding motion follows a single back and forth direction. Consult'g, Train'g, Software Environmental Compliance. Applying a Mirror Finish (by Hand): How to apply a high-gloss finish by hand, using abrasive polishing. Then afterwards using rouge rubbing compound and a felt attachment for a drill or dremel to remove any blemishes. to polish stainless steel or any metal to a mirror finish the process is generaly the same for most metals. For Wholesale and Large Quantity Discounts Call (631) 940-8550, For use on stainless steel as well as other hard metals, For finishing stainless steel to a mirror like finish, Not recommended for buffing plastics and softer metals such as gold and silver. Sometimes, the polishing compounds tend to produce pits due to excessive pressure exerted trying to clean previous sandpaper lines, but if you look carefully you can trace them back and find out if they were already there or you caused them. A. 6) Finally go over entire part with Nuvite Grade A polishing compound. A. The goal of this step is to make the surface of the tube free of welding marks and further polish the already waxed and polished tube to achieve a mirror effect.
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