how to polish brushed stainless steel to a mirror finish

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. A. Mass finishing equipment can work and produce mirror finishes on parts less than 12" square very effectively and efficiently; however, over that size it becomes a little more difficult. Finish Type. from Abe Books YouTube. Q. Hello Everyone! 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. If possible use material which has been cold worked and not annealed. Use a light oil to thin your polishing compounds and pastes if they are too heavy. Start by using the polyimide tape to protect the bright polished areas you just did from getting a brushed finish. affil. Well, there is a list of reasons that answer this question: Although stainless steel is resistant to rust, it can still corrode. 3) Go over entire part with Trizact A16 using hand drum sander. The benefit to a mirror finish, is not just that it looks great, but that it is highly corrosion resistant. ", indicates to me you are blasting these parts before trying to polish. I noticed you are using 4/0 paper, we don't use that number here. from Abe Books You also sound like a smaller shop that doesn't have access to a large mass finishing machine, so your best process is probably to work these parts with a non-woven wheel or belt system. The mirror finish on stainless steel enhances its appearance and consistency, making its cleaning easier. 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. I can see right now that our environment is going to be a problem because we sand blast in the same area. (You're on the 1st page of this topic) The orange peel you're seeing is due to large grain size. 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. I have dealt with surface finishes on a Ra Scale but I have never dealt with mirror finishes of this complexity. The appearance of stainless steel is a critical design element for highly visible applications, an error in when choosing the finish can change the intended effect. or. Have the welder bend and weld it, then polish tiny marks (if there are any) left by the bender. "text": "#237afc" Next page >. Mirror finish on SS should be achieved at around 3000 Grit (If you want it absolutely impeccable) I know of people stopping at 2000 and being happy. The felt bobs are pretty much like polishing wheels (they are also known as felt buffs) but are made of non-woven wool (vegetable or synthetic fibers are more prone to over-heat or scratch the surface). Sounds like a heat problem due to lack or little lubricant or rush. How do I do this. The resulting heat and friction just "smears" the Bielby layer causing the orange peel. ©1995-2021, Inc., Pine Beach, NJ, How Google uses data when you visit this site. start with a course sand paper, the grade being dependent on the original condition of the finish of the surface. Regarding the polished finish, the stainless steel watch can have a satin or a grained finish or a mirror/ brightened polish. Nevertheless, the care and maintenance of mirror-polish stainless steel just requires a little extra attention and specialized tools. Try cleaning your sink with a paste of baking soda and water. Steel is commonly used for home appliances and mixed media art projects for its smooth, pristine appearance. Something else, can you get diamond paste 15 and some hair brushes? For large projects (cars), power sanders and buffers are helpful. Our specially formulated Stainless Steel Polishing Compound has been especially designed to finish stainless steel to a high luster mirror like finish. Using stitched cotton mops and grain pastes, you simply work your way through finer grains … These parts are for the outside surface of an aircraft window. Now that our bright areas are polished to a mirror finish, we will put the matte/brushed finish back on to the other areas. I am the Quality Manager at a Precision Machine Shop where we make parts for the Military, NASA, Aviation Industry and Medical Industry. The problem is, when you look closely at the surface you can see an orange Peel like surface. To apply, simply spin a buffing wheel on a motor or drill and gently press the compound to the wheel. Several well known brands (Boride, DME and Gesswein) come to mind. Otherwise you can use flat sandpaper and scotchbrite wheels mounted on rubber cups and high speed rotary motors (you need at least 10,000 feet per min). 4 finish. "Lapping and Polishing Handbook" Applied on buffing wheels. A discussion started in Mirror finish. 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. Polishing helps in getting rid of such rust spots and also protects the gun against it. Rotary Tools, Attachments, Chucks & Mandrels, Skip to the beginning of the images gallery. It resembles a very hazy mirror, with some reflection evident. 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. They are bent to the shape of the aircraft within .06 (in) and they have countersunk holes about every inch or so. 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. And "NO" we are not sand blasting these parts (We do know better than that). If you go 90 degrees to the last operation you will be able to see the lines you have not taken out yet. A. O.K. (90 deg to last cut) 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. Then felt bobs and diamond paste down to 3 microns. Satin Finish Stainless Steel Balustrade A satin finish lacks the brilliant sheen of a mirror polish finish. 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. Too much pressure might cause overheating and discoloration. To apply, simply spin a buffing wheel on a motor or drill and gently press the compound to the wheel. 2) Go over entire part with Trizact A45 using hand drum sander. Laurence, you are my new best friend! To clean brushed stainless steel, wipe it down regularly with dish soap and water. A bright, cold-rolled finish is the most commonly "Mill" finish for light gauge stainless steel sheet. They are low volume now but may become higher in the future. 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 The orange peel is cause by a combination of things. In what stage do they appear or when do they become visible? During brushing, an abrasive material is rubbed over the surface to create many small scratches. Best of luck. I feel that 12 gauge is not such an issue. How Google uses data when you visit this site. All polishing compounds have been on our shelf for less than 1 month. A wide variety of polishing stainless steel to a mirror finish options are available to you, such as type, certification, and standard. Thanks in advance. I no longer have access to 2014. Finer grit lines and higher reflectivity than n No. just cut to length (leave a little extra), and chuck it up to your power drill and sand away. If you have any query, it will be my pleasure to assist you. 5. Where can we purchase the Oil and Mold makers' stones? Any suggestions on the total polishing process will be greatly appreciated. If you need a product/service, please check these Directories: Jobshops Capital Equip. Q. Hi everyone, Is it possible that we are not going deep enough at the … You will only need them if the previous condition is really rough and the surface has unacceptable bumps or waviness. Mechanical grinding of the surface causes a "Bielby Layer" to form. "background": "#237afc" This is by far the best sanding belts we have found to date. 2) Make sure every line from the previous operation has been taken out before you continue to the next step. Begin by sanding the surface with a coarse sandpaper, around a 40 grit. Right now we are using hand power tools. } We are also using Nushine II made by Nuvite for the final polishing. Late response though I hope it reaches you. But any thing below that would be really not a great idea. We are now able to produce the mirror polished finish that we were trying to obtain. I'm having the same problem (more or less). This is the general-purpose cold-rolled finish that can be used as is, or a preliminary step to polishing. Good luck. Are you using any lubrication or cooling media, if yes I would also like to understand that too. Thank You in advance! Is there an electrostatic solution to this problem? For the best experience on our site, be sure to turn on Javascript in your browser. from Abe Books Polishing of any type improves the texture, appearance and consistency of stainless steel. Explain to me please. I'm not sure you can find enough specific info about this on any website. Then afterwards using rouge rubbing compound and a felt attachment for a drill or dremel to remove any blemishes. We have polished smaller parts in the past for the medical industry just nothing of this size and magnitude. We put it on a hand drum sander with an air pneumatic drum (Dynisher). I would say it is about a 64 Ra finish. What is size of your component? or. Start of suggested clip. however we are still getting a pitted surface. What is the machine you use and the type of abrasive you use? For large volume of small parts you'll have to ask a mass finisher. No worries about fingerprints. link Large hardware stores or those specialized on abrasives will have the stones or just type "polishing mold maker stones" on a search engine. it's easy to polish when the steel is in a straight stick form. A. Polishing Stainless Steel to a Mirror Finish < Prev. If this is plain steel you'll also need to apply a water based polyurethane finish to protect it. Brushed/Satin Finish Step 1. The heat and friction of the spinning wheel will be enough to transfer a small amount of the compound onto the wheel for polishing. We found that too much downward pressure is counter productive. I hope you are well! You need oil or mold maker stones down to 600. sandpaper down to 1500 or better. }, } Thanks in advance! "Stainless Steels" 4. How close are you after that paper to a reflecting surface? 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? A very clean environment (including hands, cloths and hair of the operator). The orange peel should go away. window.cookieconsent.initialise({ Problem maybe because of over heating. (90 deg to last cut) The final abrasive used in the process is 150 to 220 grit. I was referring to the sandpaper and diamond past we were using. We are then sanding it with 180, 240, 600 & 4/0 grit sandpaper. How to polish stainless steel to a mirror finish. A. Reread your info. Stainless Steel Polishing Compound, 1 lb. In 2014 it was a mirrror like finish. Is there a way to get this finish back as it is more realistic? It also masks the after-effects of welding and hides surface damage, if any. I would like to bring the mirror look out in it. Finish with a fine sandpaper, a 320 or a 600 grit. Please note the following; Either sand the surface by hand, or using a sanding tool. We are then sanding it with 180, 240, 600 & 4/0 grit sandpaper. Any problems with that, ask me. The grinding motion follows a single back and forth direction. Q. 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. "Stainless Steel for Design Engineers" Lawrence, I think Mirrorization of Stainless Steel is not at all Difficult, just that it is Different. ©1995-2021, Inc., Pine Beach, NJ   -   About   -  Privacy Policy Applying a Mirror Finish (by Hand): How to apply a high-gloss finish by hand, using abrasive polishing. elements_selector: "iframe" 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. 6. "background": "#fff", 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. Q. AF the size of the part in the 3rd post. Stainless steel can have a very shiny mirror-like finish. Nam. A lot of people ask what the need to polish a gun is. Power tools are magic when it comes to polishing. I want to thank everyone for the help and advice you have given me. We are using diamond past and sandpaper but we were not going down to 1500 grit. You will need to work methodically to get this shiny finish. 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. Sorry about my confusion on size. We invited 3M to come out to our facility and they recommended a product line called the Trizact series. offers 18,693 polishing stainless steel to a mirror finish products. However, the raw material substrate must be from the best steel mills in the world to avoid problems with pits and pinholes. Could it be proportionally around 2000 according to the depth of lines left? 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. 119 seconds. Using oil has helped a lot (Thanks Guillermo for that tip!) 2007 but continuing through 2020. Stainless steel sinks come satin, polished, mirror or matte finishes. & Install'n Chemicals & Consumables 3) Don't put too much pressure on your tool. Properly finished stainless steel is easier to keep clean for hygienic and commercial applications, such as hospitals and restaurants. My name is Lawrence. Keep in mind that SS has a very low thermal conductivity so it builds up heat quite fast. And, above all, patience...a lot of patience.       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. If you read the previous post you will hear this over and over. A. It is a must to determine where you start! The specification that was given to me said that you have to be able to see a badge clearly with no distortion from one foot away and you have to shine a light from four feet away and have no cloudy spots visible. 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. A. Thank You for all the responses! Some prefer to add texture to the steel by giving it a brushed look. That's It! We are having a problem Polishing a 301 Stainless Steel part to a mirror finish. Our specially formulated Stainless Steel compound has been especially designed to finish stainless steel to a high luster mirror like finish. Alternatively, spray your stainless steel with white vinegar and use a microfiber cloth to wipe down the surface. "button": { They have a window opening in them making them around three inches wide from the outside of the part to the inside cut out. 2. In consumer p… From there we are polishing with diamond past grade #6, #3 & # 1. to polish stainless steel or any metal to a mirror finish the process is generaly the same for most metals. however we are still getting a pitted surface. Consult'g, Train'g, Software Environmental Compliance. I was ending up with an uneven "granularity" that looked like a cross between brushed stainless and smeared fingerprints. Much too expensive and questionable results. 1. Ra of 1 microinch even in 11 GA material has not been a problem. 1) Sand out all defects with a 90 deg hand sander using 180 grit disk pad. Give'em a chance at moderate speed. For the best experience on our site, be sure to turn on Javascript in your browser. Mirror finish stainless steel sinks can add a modern touch to your home, but they require frequent care and cleaning to look their best. JavaScript seems to be disabled in your browser. window.addEventListener("load", function(){ It does not get the lines out faster! - YouTube What is the finish of the plate before you start any activity. If not you must. About 0% of these are Abrasive Tools, 0% are Abrasives. Thank you for the feedback. Ciao! I'm sorry that I was misleading on the grit size. 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). This technique works for just about anything--furniture, automobiles, guitars, etc. Polishing is important because it improves the appearance and the consistency of the watch while also helping in the fabrication, blending, and repair of the stainless steel after welding, masking off the minor damages while also making cleaning easy. "popup": { The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. })}); Not a lecture hall but a roundtable with a seat for you! How to Polish Stainless Steel Gun. ? They are roughly four foot square but have an odd shape. 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. The glossy look does take time, patience and methodical work. How do I get the shine back on my stainless steel sink? From there we are polishing with diamond past grade #6, #3 & # 1. Are you getting scattered pits or are they throughout the surface. It’s something you could clean once, set on a shelf and then not touch again. How do I clean and remove the scratches? Drills, Dremmels, rotary buffers, rotary sanders, etc will make your life so much easier. A. There are a large variety of decorative finishes available, so it is key to find out the most suitable finish for the application needed. This is due to the polishing procedure which removes deep scratches which can harbor corrosive particles. This method would work well on something like a tealight holder. (Make sure ALL defects are out.) Mirror finishes are often chosen for stainless steel products that need to look attractive, like balustrades, architecture, kitchen/bathroom tap-wear, or artworks. new LazyLoad({ 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). How can we get rid of this and bring the luster out better? Q. }); We receive the SS sheet of material with a brushed looking finish on them. 3. or. They have a window opening in them making them around three inches wide from the outside of the part to the inside cut out. 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." (adsbygoogle = window.adsbygoogle || []).push({}); Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. 5) Go over entire part with Nuvite F9 polishing compound. Thanks! Here is our sequence: It is obtained by a final light roll pass of the sheet through polished rolls. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. I am also looking for a way to avoid or quickly remove this layer. 4) Go over entire part with Trizact A6 using hand drum sander. I don't mean to sound ignorant but what are bobs? Our quality compounds have a shelf life of at least 10 years. They are roughly four foot square but have an odd shape. Q. I have a flat sheet of stainless steel. As with the stainless steel, you can achieve a chrome-like mirror finish on an aluminium surface. Is it Hot Rolled or Cold Rolled link M irror-polish stainless steel is really attractive, but not quite as user-friendly a surface as its brushed finish counterparts. new LazyLoad(); Wash the aluminum using a liquid dish detergent. AF Were could I get information on a large mass finishing machine. 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. Press the stainless steel against the wheel, applying slight pressure.

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