My arch observation about primate behavior didnt send, and good riddance, but is there any sense in the idea of my colleagues pouring a self levelling table for his hopeless Chinese cnc, about 80x120cm? I think they make people sound arrogant which I am being accused of here. If I am wrong, it has nothing to do with you, and it should possible to tell me HOW Im wrong, or WHAT is wrong with my reasoning. Among other things I have studied philosophy, psychology, accounting, finance, and other things. Try not to comment about posts by others if you are largely ignorant about the issues. Its called talking down to people. The following questions about epoxies crop up frequently. This Incredible Solutions epoxy is designed specifically for countertops. Hence the usefulness for an optical bench? A sand-epoxy mix will be stiffer than epoxy alone. If I am wrong, it has nothing to do with you, and it should possible to tell me HOW Im wrong, or WHAT is wrong with my reasoning. The former is straightforward, and most kits are designed for the job. Tint with our EZ-Tint. Expert advice from Bob Vila, the most trusted name in home improvement, home remodeling, home repair, and DIY. I stopped reading at that point. The manufacturer doesnt provide an exact temperature rating, but its heat resistance is not high. The interface between the composite, the adhesive and the steel is controlled by the higher modulus of the steel, it restrains the thermal expansion of the composite to that of the steel. If a cloth and warm water dont remove marks, use a little dish soap as well. I will respond with little more than endless lists of the fallacies and biases that your comments contain. We are too enamoured in our society by the idea that a credential of some sort conferes unusual expertise. Yes, it is. Jonas liked Anatomy of a Philips VideoWRITER. Epoxy also can be used to refinish or protect existing surfaces. Dont try this at home! Fortunately, modern formulations produce low or zero VOCs and emit less odor. Now I see why most of your post is stating your qualifications: what youre saying is nonsense. Full cure takes 7 days. When considering ease of application, a couple of features come to mind. Additionally, it produces minimal odor during application and is food safe when fully cured. In fact I know rather a lot about them. However, I do not think that it is possible to make a machine capable of better than 0.01 precision with high repeatability using these materials to cast bases of any useful size. Those with phuds rarely trumpet their phud unless it is in some lame category with little academic merit such as education, journalism or some sort of fake studies field. Tony Warren (if that IS your real name): Dont tell me what you understand better than I do. Youre seeing this ad based on the products relevance to your search query. The U.S.-made formula is low VOC, provides a high-gloss finish that the manufacturer calls super wet, and offers good UV resistance. The core has excelent mechanical properties as a result. Sand is ridiculous. The comment from Dave is interesting to me. I appreciate the text summary. The only method I have found that was permanent or close to it, and that increased the surface energy enough to allow the adhesive to wet out the surface is to use very nasty chemistry. Spherical powders are commonly added to epoxies to increase strength and change other properties. I know how to design experiments using sophisticated means and have deep knowledge of finite element analysis methods. You self-righteous ass. As to hard working having merit on its own; hard work is a given. As soon as the two components combine, they start to cure, so application time is important. Most people apply a skim (thin) coat and one or more additional coats to achieve a total thickness of between and inch. Even then, experts suggest only light use since a full cure can take from 7 to 30 days, depending on the product. But clearly composites do not seem to be your biggest strengths. You have no idea if any of those claims are true, and you have no idea if it is a comprehensive list. Once fully cured, epoxy resin provides a high-gloss shine that resists water, general wear, scratches, and cracking. This is not correct on your part. Adhesives can be brittle and glassy or flexible or rubbery.. I can only think it is due to costs. As I said, this past year I worked on a weird project that required a serious epoxy system. If the mold could be filled inside a chamber with reduced pressure, pouring the resin and filler mix in a narrow stream to let air gas out, that would help reduce trapped air bubbles. You can even use epoxy to pour a complete new epoxy resin countertop if desired. Would you magically feel better if I claimed I had a PhD in materials engineering, or perhaps organic chemistry, or aerospace engineering, or some other advanced education? Us old guys imagine that we are always correct about the things we choose to blather about. Although its dry to the touch in around 12 hours, leave it at least 3 days before using it. You dont understand those issues but I do. With all these considerations in mind, its time to start shopping. Well, something I clearly understand better than you, is communications. Okay, high aspect ratio additives. Then any metal parts such as linear motion tracks, motors, spindles and what not are glued into place. Very intersting. Get a clue this is the Internet, and nobody cares what you claim to be. But I wouldnt be surprised to see some dimensional creep with enough thermal cycling (And even then, I bet the compressive creep would be an order of mag less than the wear on the ways, considering how flame-hardened Hardinge ways end up with a few thou easily, and 6061 is like swiss-cheese comparatively.). https://www.kaneka.com/kaneka-americas/products/kaneace, Functional additives can be found at this site. Do you want to claim that details about how I came to conclude these things is evil, because I have used actual science to inform my conclusions? If my reasoning is flawed or if someone can point to a better way of formulating the resin system using materials I dont know about or havent experienced we all learn something we didnt know. http://donkey32.proboards.com/board/17/geopolymers. The resin thoroughly impregnates both the fibres and the core. I did not go into great detail on the flaws of the experiment other than to say that I had low regard for them. I said they were amateur. It emits low VOCs, levels itself, produces minimal air bubbles, and offers good UV resistance. WHAT should the author of the video have done to improve the stiffness of his machine? As I said earlier on, I am certain that are many things that you have a great deal of expertise on and from which I may be able to learn something. That was part of why I explained why they would work better than sand and some pigment. They are not strong as filament additives but can still be an improvement versus clean epoxy. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. So far, no one has actually made a comment about why this advice is bad advice. And seriously: fiberglass? The bottom of many older mills and lathes is typically hollow for filling with sand or water. Example 2: machining or just trimming glass fiber composite with precision sounds like a demanding task. At the molecular level, over time, lots of time, the bondline will degrade and part the adhesive and cause cohesive failure. Do you wish to claim that I am wrong in my proposed formulation? Perhaps you are correct in that I made an assumption because of your questions. My new model is to eschew pedantry. There are some interesting experiments being done to find castable stone formulas for wood stove design. You can find it as previous article posted under epoxy granite tag used on this one. Im only an old fortepiano builder, my colleague a wildly prolific harpsichord builder, both new to cnc and quite sure that this will replace relentless heavy duty handwork, just in time. Ease of application also is affected by the nature and texture of the original surface. For example, most can be dyed, so the color can be changed to match new kitchen cabinets. Again, agreed, you cant prove them, and I cant disprove them. I have the advantage of being able to either design my own epoxy system, or as is usually the case, having a colleague with far better skills than mine do that work for me. Compared to epoxies, sand is very stiff. Other potential fillers for this application include; feldspar, ceramic centospheres and microfibres, short fibre reinforcements, various carbon nanomaterials, and others. The explanation is more along the line of a book or certainly white paper length discussion of the issues at play in attempting to make the best epoxy granite.. A better path would likely be to use fibreglass lay-up techniques in simple tools and machining those after proper cure to achieve the ultimate shapes required. A second coat can be applied once the first has hardened, which takes 12 to 24 hours. It would self-level but the main reason is optics tables need weight and damping. Until then, dont rag on others hard work when you have nothing but a paragraph of empty words to show us.. It is an interesting site. If you want a big CNC machine you need a strong, vibration-resistant base. For example I havent heard of core-shell rubbers before, yet where to source them. Epoxy granite is your best bet, but what epoxy granite is the best? It is always open season on those, facing such criticism can only make me see the errors in my thinking and to improve upon it. However, a few questions may still remain. Clear Table Top Epoxy Resin That Self Levels, This is a 1 Gallon High Gloss (0.5 Gallon Resin + 0.5 Gallon Hardener) Kit Thats UV Resistant Its DIYER & Pro Preferred with Minimal Bubbles. 11 Ways to Make the Most of Your Towns Curbside Cleanup Day, 14 Instant Fixes for a Total Pantry Makeover, 10 Clever DIY Ways to Store Kitchen Spices, 10 Kitchen Countertop Materials for Every Budget. What followed has never been anything about ad hom fallacy and personal bias in attacking me. But thats just the start. I post under my own name, it adds credibility in my opinion. As time passes, the epoxy becomes thicker and more difficult to spread. If I said something that indicated ignorance or misunderstanding, you should be specific, rather than just going to I know this stuff better than you do. But whatever. While a pan straight from the oven can burn it, it typically resists heat well enough to allow cups containing hot beverages to sit on it. To save money, use epoxy to create a durable work surface for your home that looks beautiful. If you did understand what I was talking about, you would know that a tool in this instance is a die or a mold. Who shouldnt even come into the discussion, but YOU brought it in. This question, like the others you refer to demonstrate your lack of knowledge in this particular field. Using epoxy resin to revitalize an old countertop or make a new one allows for many creative possibilities, including the opportunity to mimic expensive quartz and marble at a fraction of the cost of real stone. Curing time will be several days, so your countertop will probably be out of use for at least a week. It needs a combination of bis a, bis f and novolac resins and a cooler jeffamine curative. Once assembled the structure is put into a simple oven that can be made easily. The comment of the R&D guy was priceless; he kept saying over and over again, I am seeing it, but I dont believe it. Sand is ridiculous. One area of expertise I have is in making wear resistant thermoset repair products and coatings. He reminds me much of another HaD poster who is oft accused of being off his meds because he takes a similar approach to commenting which puts peoples backs up and rightly so. Resistance to the ultraviolet (UV) rays in sunlight varies, but depending on location, that may not be a factor. Ahh yes, the good ole your opinion isnt valid until you have done the exact same thing trope Comment sections are meant for comments and Tony was stating his opinion, if you had a problem with his opinion then you are more than welcome to retort with a logical argument with how his comment was wrong in any way. Then it needs a post-cure heat cycle. Thats the question [Adam Bender] answered in a series of experiments that resulted in a great-looking CNC machine. All that said, so far the only comments on my ideas have been ad hom attacks on me and not on what I wrote. So imagine this. Instead you and others merely engage in ad hom attacks and then attempt to claim that I am forestalling disagreement when I offer alternative construction methods taken from my past experience. Most of these products have similar coverage, and manufacturers frequently provide guidance about the required amount. Good bye Jimmy. I happen to know a lot of highly educated people in a very large number of different fields. What he was investigating was the use of an epoxy granite overmold on an aluminum frame FOR AN OPTICAL INSTRUMENT, and really doesnt care that much about tensile strength. Clear Table Top Epoxy Resin from Pro Marine is a low-odor, easy-to-use, high-gloss product. In this case nano-rubber spheres are encapsulated in bisphenol A or F or Novolac resins. This is an optical device, and so a colorant has important physical properties. If the shine does eventually wear off in places, rejuvenate it with mineral oil or liquid countertop polish. Thats an opinion of mine. This colorable Stone Coat Countertops epoxy kit offers outstanding durability and versatility. That materials I listed in my OP have the same properties to a great extent. Tony, I dont have experience in this field, but I find this topic interesting. I have three final points: Ad hom attacks are prima facie absurd and meaningless; I wonder if English is a second or third language for you; and I made the mistake of thinking that Hackaday was a serious site for people working in diverse fields, trying to solve problems on a small and personal scale of effort. Some epoxy resins are not designed for outdoor use, so use care when choosing a product. Solid countertops could last much longer, and if the surface eventually starts to dull, a light wipe with mineral oil will usually revitalizes them. If you are interested in finding out more about the composit in my first post, or about how to perhaps find a better way of making a machine base with more robust structure, I am happy to first inform you regarding sourcing materials and why they are useful and secondly how think through the construction process. So far you have not squeaked out one word on that formula. And dont forget epoxys most useful feature: it sticks to things VERY WELL. Samples using rock didnt turn out that great and still had trapped air. The latter offers the opportunity to create something unique and special, but it can take considerable time and effort. The mix needs functional additives with as few natural harmonics as possible. You put it far better than I have. Who shouldnt even come into the discussion, but YOU brought it in. Unmixed, they can be stored for a year or more without degrading. Better would be to increase the pressure in the chamber after the lower pressure filling. Cite relevant principles or STFU. interfaces of the different density materials of this composite impede the propagation of the ringing vibrations since each material has a different resonant frequency. Have plenty of cleanup materials on hand before starting the project. It needs a combination of bis a, bis f and novolac resins and a cooler jeffamine curative. I however have. Well, Tony, we dont have a chance to criticize your arguments on their own merits, because all of your claims come down to youre wrong because Ive been doing this stuff longer than you have, and I know more than you all. (Which in itself is absurd, since you have no idea how much experience the people you are putting down have.). They act as dampeners. I work in the field of composite materials using both thermoset systems and thermoplastic systems. In a huge number of shear, peel, and other variants of ASTME tests, the adhesive almost never disbonds from the plastic. If one were to ask, I could put them in touch with formulators who can do the work for them on a commercial basis. 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At just 7 days, it cures comparatively quickly. I really dont care what your credentials are. My guess is that you have never been involved in the aerospace industry and have never created an advanced composite structure. It works well with all kinds of composite and laminate countertops (including formica) as well as with solid wood, concrete, or stone. Broken, Chips or Cracks. Epoxy concrete has been used for machine beds for multiple decades. Users can create marble, granite, or quartz effects or include metallic powders to add another dimension to the surface. One sample was held in place by the traditional welded washer attachments the other was glued on with epoxy. Stone Coat Countertops 1 Gallon Epoxy Resin Kit DIY Countertop Epoxy Kit for Kitchens, Bathrooms, Table Tops, Bar Tops, and Woodworking! Versatile and relatively inexpensive, it might have taken the top spot except for its modest temperature resistance at 135 degrees Fahrenheit. Jonas wrote a comment on project log Disk dumping in progress. He taught me a huge amount about how to make adhesives tougher and more wear resistent. Instead of complaining about my personal flaws, it would be more useful to me and others if someone took apart my posts to tell me why they think I am wrong about some particular point or another. Since epoxy has become increasingly popular, a number of resins are on todays market, which can make choosing the right one a challenge. Couple that with another sort of bias pertaining to being a geezer. Most epoxies allow for around 45 minutes of application time, so plan the job in advance and have everything required at hand. Keep reading to discover the important points to consider before making a purchase, as well as the benefits and practical aspects of using epoxy for countertops. Historically, epoxy resins have not been particularly pleasant to use, producing strong odors and containing high levels of volatile organic compounds (VOCs), which are now recognized as a health hazard. Nice if you want to make a counter that looks nice, worthless if your counter has to support high loads. Ask yourself this question. Granite Marble Quartz Stone Tile Formica. Nice work! Disclosure: BobVila.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for publishers to earn fees by linking to Amazon.com and affiliated sites. Instead the best that you or anyone else has been able to come up with is complaints that I am either overly pedantic or unqualified. For a good quality, budget-friendly alternative, consider the Incredible Solutions epoxy kit. We made sure to also include several options that are completely food safe for added peace of mind. You have no idea what I understand, and are likely wrong. Not unless its kept somewhere that experiences wild temperature swings. Then it needs a post-cure heat cycle. Do you want to claim that experience is nothing? I have inventions involving the use of thermoplastic honeycomb cores that have been used for everything from ultra-lightweight helicopter landing pads, to explosive resistant tank parking pads. Well, Tony, we dont have a chance to criticize your arguments on their own merits, because all of your claims come down to youre wrong because Ive been doing this stuff longer than you have, and I know more than you all. (Which in itself is absurd, since you have no idea how much experience the people you are putting down have.). Always use a white cloth so the fabric color wont transfer to the surface. But at this point, I really dont care to hear anything more from you, since in the absence of any demonstration of competence, I am now convinced that your exceptional knowledge base is all in your imagination. EasyPour Epoxy 1 Gallon Kit - Crystal Clear High Gloss Resin and Hardener, 2 Mixing Cups, Silicone Spatula, Plastic Spreader - Make Wood Tabletops, Epoxy Countertop Resin, Epoxy Castings, LCATM BLACK, Light Cure Acrylic DIY Surface Repair Kit for Granite, Marble and Porcelain, procaliber products 10-11-711 clear lca clear granite/marble/quartz chip repair kit, 1 ml, syringe, Undermount Sink Clips Support Brackets - 10-Pack, Universal Epoxy Sink Clip Kits for Kitchen Marble Granite Countertop Bathroom Vanity Sinks, Light Cure Acrylic Repair Kit - Multi Shade Grey Tones, Black Swan Manufacturing 139219059 9 oz 01190 Marble Plus Plumbers Putty, Seville Classics UltraHD Height Adjustable 4-Foot Heavy-Duty Wood Top Workbench, Granite Gray, Adhesive for Granite, Marble & Stone - Clear SCA. Until then, dont rag on others hard work when you have nothing but a paragraph of empty words to show us. This article has explored some of the top epoxies available, offered some useful tips on their use, and suggested several of the best epoxy products for countertops to buy. Many products do comply with the relevant certification (Code of Federal Regulations Title 21, part 175.300 and 175.105), so if the intended use is for a kitchen countertop, consider this as well. epoxy. Instant Install 29~20 oz. My experience has shown over and over again that those ideas are for the most part wrong. It will also be denser and more wear-resistant. Yes, in the past they use to make floating concrete slab over a square hole filled with sand to minimize vibration from and to the building. Its fully cured in 72 hours and heat resistant to 230 degrees Fahrenheit.