{"id":10579,"date":"2026-11-06T19:01:58","date_gmt":"2026-11-06T19:01:58","guid":{"rendered":"https:\/\/www.masspolishing.com\/news\/isf-isotropic-superfinishing-process-chemistry-and-control.html"},"modified":"2026-11-06T19:01:58","modified_gmt":"2026-11-06T19:01:58","slug":"isf-isotropic-superfinishing-process-chemistry-and-control","status":"publish","type":"post","link":"https:\/\/www.masspolishing.com\/fr\/news\/isf-isotropic-superfinishing-process-chemistry-and-control","title":{"rendered":"ISF Superfinition Isotrope : Processus, Chimie et Contr\u00f4le"},"content":{"rendered":"

ISF isotropic superfinishing is a chemically accelerated mass finishing process, not an ultra-fine abrasive polish. An active compound softens a very thin layer of the metal surface, and a non-abrasive media wipes that layer away on the asperity peaks only, so the surface flattens into a plateau with no organised direction. The result is a texture that behaves much the same whether you measure along a shaft axis or across it. The process changes texture, not form: it will not correct a taper, a chatter mark or an out-of-round bore. Getting it to work reliably depends on three decisions made before the first part enters the barrel, namely the pre-finish you supply, the chemistry matched to the alloy, and the measurement method written on the drawing.<\/p>\n

What ISF Isotropic Superfinishing Actually Changes<\/h2>\n

The name describes the outcome rather than the method. Isotropic means the texture has no dominant direction, so roughness and contact behaviour are approximately equal in every direction you measure. Superfinishing means the surface is taken below the roughness left by grinding or honing, into the range where the remaining peaks are too small to dominate contact.<\/p>\n

The method behind it is chemically accelerated mass finishing. Three elements act at once inside a vibrating bowl, a trough or a rotating barrel: a media with controlled size, shape and density; a water-based compound containing an oxidiser and a complexing agent; and mechanical contact pressure between media and part. The compound reacts with the metal to build a soft, friable film a fraction of a micron thick. Where media touches a peak, the film and the metal immediately beneath it are wiped away. Where the media cannot reach, in a valley, the film stays and protects the metal under it. The film re-forms continuously, so the cycle repeats: soften, wipe, soften, wipe.<\/p>\n

Because removal follows contact pressure, it concentrates exactly where the surface sits highest. That is the opposite of conventional abrasive polishing, where a fixed grit removes high and low areas at similar rates and the outcome depends on how long the operator keeps going. Peak-selective removal is also why the process produces no lay. There is no belt, no wheel and no single direction of travel, so there is no direction for scratches to align with. Put an ISF surface beside a belt-polished surface under a microscope and the difference is plain: the polished surface carries parallel scratches, the superfinished surface carries a random, plateaued texture.<\/p>\n

One consequence deserves its own sentence. ISF changes texture, not form. The depth of material removed is measured in microns, sometimes less, and it comes preferentially off the peaks. A wavy bore stays wavy. A tapered shaft stays tapered. A chatter mark deeper than the removal depth may be reduced but will not be erased. If the drawing problem is geometry, ISF is the wrong tool. If the drawing problem is the texture sitting on top of correct geometry, it is the right one.<\/p>\n

Why an Isotropic Surface Beats a Directional Polish<\/h2>\n

Two surfaces can report the same Ra and behave nothing alike. A fine-turned shaft at Ra 0.2 microns and an ISF plateau at Ra 0.2 microns have the same average deviation from the mean line, yet the turned surface is a screw thread of microscopic ridges while the superfinished surface is a field of flat plateaus separated by shallow, randomly distributed valleys. Under load, the ridges touch first.<\/p>\n

Contact begins at the highest asperities. On a directional surface those asperities are aligned, so the real area of contact grows along lines instead of spreading evenly. Local pressure at the ridge crests can be several times the nominal contact pressure, and that is where micropitting, fretting and adhesive wear start. Remove the peaks while keeping the valleys and the same load is carried by a larger real contact area, which lowers local stress. The mechanism is geometric rather than mysterious.<\/p>\n

A plateau also keeps lubricant where it can do work. If a finishing process removes peaks and valleys together, the surface becomes smooth but the oil has nowhere to sit. ISF is selective, so the valleys survive while the peaks disappear. For gears, bearings and hydraulic components that combination matters: a high material ratio at shallow depth gives a load-bearing plateau, while retained valley volume holds oil. These are two separate properties, and a single Ra callout cannot tell you whether you have both.<\/p>\n

Direction changes sliding behaviour as well. A lay running across the direction of sliding interrupts the oil film at every ridge; a lay running with it channels oil out of the contact. An isotropic texture suffers neither effect to the same degree, because there is no organised direction to line up with the motion. This is why identical Ra values can produce different friction and different running temperature depending on how the surface was produced, an effect that is easy to see on a test rig and invisible on a drawing.<\/p>\n

Isotropy is measurable, not a marketing word. Areal texture analysis reports the texture aspect ratio, Str, on a scale from 0 to 1, where a value close to 1 describes a surface with no dominant direction. That makes Str a more direct descriptor of this finish than Ra. A bright, low-Ra surface from a long low-energy barrel cycle with fine media can still carry a directional or randomly scratched texture, because brightness and isotropy are different properties and only one of them is what the process is named after.<\/p>\n

\n

A long, low-energy barrel cycle with fine media is one route to a bright appearance, and it helps to know exactly where that route stops. <The Secret to Perfect Finishes Rotary Barrel Tumbling<\/a>> covers rotary barrel tumbling<\/a> as a finishing route in its own right.<\/p>\n<\/blockquote>\n

None of this makes a directional finish wrong. A ground or honed surface with a controlled lay can be precisely what a plain bearing or a sealing face needs. The point is that the finish has to be specified in terms of function, and Ra on its own does not do that.<\/p>\n

The Steps That Must Come Before the ISF Cycle<\/h2>\n

The chemistry can only act on a surface it can reach and wet. Most results blamed on the ISF stage are actually inherited from what happened before it, so the sequence leading into the barrel deserves more attention than the barrel setting itself.<\/p>\n

Deburring and edge break come first. A burr is a peak of a different kind, a folded or torn piece of metal with a root, not a roughness feature. Contact pressure will bend it back and forth rather than remove it, and a burr that folds flat can trap compound underneath and reappear after cleaning. Removing it mechanically also protects the media and keeps edge radius consistent from part to part.<\/p>\n

Pre-finishing sets the amount of work the chemistry has to do. ISF removes peaks quickly, but it does not erase a deep grinding pattern in the same time it takes to plateau a honed surface. Economic cycle time comes from matching the incoming finish to the target, which is a decision about grinding or vibratory pre-finish rather than about the compound.<\/p>\n

\n

Roughness is mostly removed before the chemistry is ever introduced, and the platform used at that stage sets the workload for everything downstream. <Vibratory Finishing Machine the Ultimate Guide to Industrial Surface Excellence<\/a>> covers vibratory finishing<\/a> as an industrial surface preparation route.<\/p>\n<\/blockquote>\n

Cleaning is not a formality. An oil film, a fingerprint or a residue of rust inhibitor blocks contact between compound and metal, so the film never forms in that patch and no finishing happens there. The outcome is a mottled surface that gets blamed on the chemistry.<\/p>\n

Masking is conditional but belongs in the plan early. Threads, splines, press-fit bores, coated areas and any feature where a change of a few microns matters may need protection, and deciding this after the first batch is expensive.<\/p>\n

Rinse, neutralise and dry close the loop. The compound is acidic and carries dissolved metal. If it stays in a blind hole or a lap joint, it keeps working after the part has left the barrel.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Step<\/th>\nRequired or optional<\/th>\nWhat it controls<\/th>\nIf it is skipped<\/th>\n<\/tr>\n<\/thead>\n
Deburr and break edges<\/td>\nRequired<\/td>\nRemoves folded metal with a root<\/td>\nBurrs smear and reattach, edge quality ends worse than it started<\/td>\n<\/tr>\n
Pre-finish to the working range<\/td>\nRequired<\/td>\nGives peak-selective removal a surface it can plateau<\/td>\nCycle time climbs without reaching target and peaks come off unevenly<\/td>\n<\/tr>\n
Clean and degrease<\/td>\nRequired<\/td>\nLets the compound wet every area at the same rate<\/td>\nPatchy finishing, water breaks, spotting<\/td>\n<\/tr>\n
Mask threads, bores and coatings<\/td>\nConditional<\/td>\nKeeps functional features out of the bath<\/td>\nPolished threads or undercut coating, then rework<\/td>\n<\/tr>\n
Coupon or first-article trial<\/td>\nRequired<\/td>\nConfirms chemistry, media and time for that alloy<\/td>\nA recipe borrowed from another alloy, target missed<\/td>\n<\/tr>\n
Rinse, neutralise and dry<\/td>\nRequired<\/td>\nRemoves metal-bearing residue<\/td>\nStaining or corrosion hours to days after finishing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"EB40<\/p>\n

Deburring in a barrel before the finishing stage is a common way to make that first row repeatable rather than dependent on an operator’s eye.<\/p>\n

\"Centrifugal<\/p>\n

Choosing the Machine and Chemistry for the Cycle<\/h2>\n

The machine’s job is to deliver controlled contact pressure at every point on the part surface, repeatably, for the whole cycle. The chemistry’s job is to make the metal at those contact points soft enough to be wiped away. Both must be right. One without the other gives either a slow abrasive polish or a stained surface.<\/p>\n

Platform choice follows geometry and batch size more than it follows the finish target. A high-energy barrel reaches small and medium parts that can tumble freely. A vibratory bowl or trough handles longer, heavier or more delicate parts at lower contact pressure. A disc machine suits flat-faced parts that need short cycles. Drag finishing, where parts are clamped in holders and pulled through the media, gives uniform access to complex geometry at the cost of fixturing and throughput.<\/p>\n\n\n\n\n\n\n\n\n
Platform<\/th>\nContact energy<\/th>\nBest fit in an ISF route<\/th>\nMain constraint<\/th>\n<\/tr>\n<\/thead>\n
High-energy centrifugal barrel<\/td>\nHigh<\/td>\nSmall to medium precision parts, short cycles<\/td>\nBarrel envelope limits part size, dividers needed to stop part-on-part contact<\/td>\n<\/tr>\n
Vibratory bowl or trough<\/td>\nModerate<\/td>\nLarger, longer or more delicate parts<\/td>\nLonger cycles because peak pressure is lower<\/td>\n<\/tr>\n
Centrifugal disc<\/td>\nHigh but single-sided<\/td>\nFlat-faced parts, edge and face work<\/td>\nLess uniform access on complex three-dimensional shapes<\/td>\n<\/tr>\n
Drag finishing<\/a><\/td>\nHigh and localised<\/td>\nComplex or delicate parts needing uniform access<\/td>\nFixturing cost and lower throughput<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

A high-energy centrifugal barrel of the EB type shows how the energy is generated: four barrels sit on a rotating turret and turn in the opposite direction, so the media charge slides and compresses against the parts at the outer wall of each barrel rather than tumbling freely. That is what produces the contact pressure that makes a short cycle possible. The same platform family built by Mass Polishing uses polyurethane-lined barrels, a process timer and inching control on the automatic models, which matters because the recipe has to be repeatable run after run.<\/p>\n

\n

A high-energy barrel is not the only platform that can run this chemistry, and the platform decision is really a question about part geometry and batch size. <Vibratory Finishing vs Centrifugal Barrel Finishing<\/a>> covers the comparison between those two routes.<\/p>\n<\/blockquote>\n

Compound control is where most production drift appears. Concentration, pH, temperature, bath life and drag-out all shift the removal rate. Manual addition works on a single machine and becomes unreliable across a cell, so dosing by a liquid feeding system and checking concentration on a schedule is the difference between a process and a habit. Chemistry is also alloy-specific: a compound developed for hardened steel will not behave the same way on titanium or on a nickel-based alloy, and carrying a recipe across alloys is the most common cause of a missed first article.<\/p>\n

Media selection follows three rules. It should be non-abrasive or only mildly abrasive, because the chemistry is doing the cutting and hard media would introduce the directional scratching the process is meant to avoid. It should be small enough to reach the surface but large enough not to lodge in holes, slots or threads. And the charge volume and media-to-part ratio have to be fixed, because both change contact pressure.<\/p>\n

\"EB80<\/p>\n

\"Vibratory<\/p>\n

How to Prove the Finish With Measurement and Documentation<\/h2>\n

An Ra figure without a method is not a specification. Ra is a profile measurement taken over a stated cut-off, and the number changes when the cut-off, the filter or the evaluation length changes. ASME B46.1 and the ISO profile standards define those terms; ISO 21920-3 defines how a complete specification operator is put together, which is what a drawing actually needs if two suppliers are to measure the same thing.<\/p>\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nWhat it captures<\/th>\nWhy it adds value on a superfinished surface<\/th>\nLimitation<\/th>\n<\/tr>\n<\/thead>\n
Ra<\/td>\nAverage deviation from the mean line<\/td>\nSimple, widely specified, easy to compare<\/td>\nIdentical values occur on directional and isotropic surfaces with very different function<\/td>\n<\/tr>\n
Rz<\/td>\nPeak-to-valley height within a sampling length<\/td>\nShows whether deep valleys remain<\/td>\nSensitive to a single scratch or inclusion<\/td>\n<\/tr>\n
Rpk, Rk, Rvk<\/td>\nPeak height, core roughness, valley depth<\/td>\nSeparates peak removal from valley retention<\/td>\nOnly meaningful on a stratified, plateaued surface<\/td>\n<\/tr>\n
Sa, Sz, Str<\/td>\nAreal height and texture aspect ratio<\/td>\nStr describes isotropy directly<\/td>\nRequires areal instrumentation and an agreed filter<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Three measurement habits separate a useful report from a misleading one. First, record the direction of the trace relative to any prior machining direction, and take a second trace at 90 degrees so a directional surface cannot pass as isotropic. Second, state the instrument and stylus tip radius, because a 2 micron tip cannot resolve features that a finer tip will show. Third, fix the sampling plan: how many parts, how many areas per part and at what frequency during production.<\/p>\n

Documentation matters as much as the measurement. The recipe is the process, so concentration, pH, media specification, charge volume, cycle time, amplitude or barrel speed, rinse sequence and drying method all belong in a control plan. Changing media supplier or compound type is a process change and should trigger revalidation, even when the certificate looks identical. Aerospace and medical customers usually treat this as a special process, which is why Nadcap chemical processing accreditation and first-article inspection reports are normal expectations rather than unusual requests.<\/p>\n

A drawing callout that actually works names the standard, the parameter, the value, the cut-off and the evaluation length, and adds a second requirement where function depends on it, such as an Rpk limit for a contact surface or a Str value for a sealing face. If that sounds like more work than writing “Ra 0.1”, it is also the only version that survives a supplier change.<\/p>\n

Where ISF Pays Off and Where It Does Not<\/h2>\n

The applications that justify the cost share one characteristic: the surface is a functional interface rather than decoration. Gear teeth are the classic case, because peak removal addresses the stress concentrations that drive micropitting and contact fatigue. Bearings, cam and tappet pairs, compressor and turbine airfoils, fuel system components, hydraulic spool valves, surgical instruments and orthopaedic implants all have surfaces where the texture controls performance rather than appearance.<\/p>\n

Transmission and drivetrain work in wind, motorsport and aerospace is where the economics are clearest, because a surface improvement is often cheaper than a design change and can be applied to an existing part number. Medical work is driven by cleanability and fatigue life, where a random, direction-free texture is easier to validate than a scratched one.<\/p>\n

There are also clear exclusions. ISF will not correct form, so parts rejected for taper, roundness or waviness stay rejected. Very large parts may not fit a high-energy barrel, and drag finishing becomes the alternative only if the geometry justifies the fixturing. Soft, ductile alloys can smear rather than plateau and need their own development work. Porous castings and parts with blind cavities that cannot be rinsed thoroughly are a corrosion risk rather than a finishing opportunity.<\/p>\n

Cost belongs in the same list. Consumables are not the main line item; the main line items are barrel time, media replacement and the waste stream. Spent compound is acidic and carries dissolved metal, so neutralisation and metals removal are part of the operating cost, and a closed-loop water treatment step is often what makes the process acceptable on an environmental permit. For a low-value part where a simple vibratory deburr meets the drawing, ISF adds cost without adding function.<\/p>\n

A Practical Checklist for a First ISF Trial<\/h2>\n
    \n
  1. Write down the function first. Contact fatigue, friction, sealing, cleanability or appearance each point to a different parameter and a different acceptance test.<\/li>\n
  2. Characterise the incoming surface, not just its Ra but how it was produced, because a honed surface and a ground surface at the same Ra respond differently to the same chemistry.<\/li>\n
  3. Choose the platform by part envelope and batch size before choosing a compound.<\/li>\n
  4. Screen chemistry and media on coupons cut from the same material lot as the production parts, and run more than one cycle time so the curve is visible.<\/li>\n
  5. Run a first article and measure it exactly as the drawing will be checked, including a trace at 90 degrees to confirm the texture is genuinely direction-free.<\/li>\n
  6. Freeze the recipe into a control plan with concentration, pH, time, media charge and rinse steps, and define what counts as a process change.<\/li>\n<\/ol>\n

    Start With One Part and One Drawing<\/h2>\n

    A finish requirement is only useful when it travels with the information needed to reproduce it. Send the alloy and its condition, the finish callout from the drawing including the standard, cut-off and evaluation length, the incoming surface and how it was produced, the part envelope and weight, the features that must be masked, the quantity per lot and the functional reason behind the requirement. Those details let a finishing route be proposed and screened on your parts rather than on a generic sample, and they can be submitted through the contact form at www.masspolishing.com.<\/p>\n

    One boundary is worth stating plainly. A roughness number without a measurement method is not a specification, and no recipe should be frozen before a first article has been measured the same way the drawing will be checked.<\/p>\n

    FAQ<\/h2>\n

    Is ISF a coating or a metal removal process?<\/h3>\n

    It is a removal process, and a very shallow one. The compound builds a soft film on the surface and the media wipes that film away where contact pressure is highest, taking a thin layer of metal with it. Nothing is added to the part, so there is no adhesion issue, no coating thickness to control and no risk of a layer delaminating in service. The depth removed is measured in microns and comes preferentially off the peaks, which is why form and dimensions barely move while texture changes substantially.<\/p>\n

    Does ISF produce a mirror finish?<\/h3>\n

    It can produce a bright surface, but brightness is not the objective and not the same property. A mirror finish is judged by how it reflects light, and a surface with a fine directional lay can look mirror-bright while still being anisotropic. The defining characteristic of this process is the random, plateaued texture with retained valleys, which is why a specification should reference a texture parameter rather than an appearance standard. If appearance is the requirement, test panels are the only honest way to agree on it.<\/p>\n

    What surface roughness can ISF achieve?<\/h3>\n

    There is no single number that applies across alloys and starting surfaces, and any supplier quoting one without qualification is describing a best case rather than your part. What matters is the starting roughness, the alloy, the media and the cycle time, and the achievable result should be established on a first article measured with the agreed method. Practically, the process is a finishing step applied to a surface that has already been prepared, and its value is the shape of the resulting texture rather than a single average height.<\/p>\n

    Does ISF change critical dimensions?<\/h3>\n

    It changes them slightly. Material removal happens on peaks, so the change in a nominal dimension is small, but it is not zero and it is not uniform across every feature. Threads, splines, press-fit bores and coated areas are usually masked to keep them out of the process entirely. For close-tolerance features, measure the first article before and after the cycle so the shift is documented and the drawing tolerance is confirmed rather than assumed.<\/p>\n

    References<\/h2>\n

    [1] ASME B46.1-2019, “Surface Texture (Surface Roughness, Waviness, and Lay),” American Society of Mechanical Engineers, 2019.<\/p>\n

    [2] ISO 21920-2:2021, “Geometrical product specifications (GPS) \u2014 Surface texture: Profile \u2014 Part 2: Terms, definitions and surface texture parameters,” International Organization for Standardization, 2021.<\/p>\n

    [3] ISO 21920-3:2021, “Geometrical product specifications (GPS) \u2014 Surface texture: Profile \u2014 Part 3: Specification operators,” International Organization for Standardization, 2021.<\/p>\n

    [4] ISO 25178-2:2021, “Geometrical product specifications (GPS) \u2014 Surface texture: Areal \u2014 Part 2: Terms, definitions and surface texture parameters,” International Organization for Standardization, 2021.<\/p>\n

    If you’re interested, check out these related articles:<\/p>\n

    Take You to See the Three Dimensional Vibration Polishing Machine<\/a>
    \n    What Are the Characteristics of Centrifugal Barrel Finishing Machines<\/a>
    \n    Plastic Industry<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    ISF isotropic superfinishing is a chemically accelerated mass finishing process, not an ultra-fine abrasive polish. An active compound softens a very thin layer of the metal surface, and a non-abrasive media wipes that layer away on the asperity peaks only, so the surface flattens into a plateau with no organised direction. The result is a […]<\/p>\n","protected":false},"author":3,"featured_media":9778,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[107],"tags":[],"class_list":["post-10579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/posts\/10579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/comments?post=10579"}],"version-history":[{"count":0,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/posts\/10579\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/media\/9778"}],"wp:attachment":[{"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/media?parent=10579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/categories?post=10579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.masspolishing.com\/fr\/wp-json\/wp\/v2\/tags?post=10579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}