MICACEOUS IRON OXIDE

Micaceous Iron Oxide = MIO

CAS: 1309 37 1
Chem. Formula: Fe2O3 (Iron-III-Oxide)
Color: grey to reddish brown, metallic
Density: 4,8 g/cm³
Hardness: 6,0–6,5 Mohs

The mineral known as Micaceous Iron Oxide (MIO: Micaceous Iron Oxide) has been widely used as a protective coating in the last one hundred years, all over the world.
MIO-based finishes are used in environments where the long-term protection is critical.

Micaceous Iron Oxide is a natural product based on hematite, whose crystalline form is lamellar (only when is a top quality one) and similar to mica (hence the name).
Micaceous Iron Oxide is an inert material, insoluble in water, organic solvents and alkalis.
Micaceous Iron Oxide is inert to most chemical agents and is highly thermally stable.

MIO, also known as specular haematite and flaky haematite, is a natural mineral ore that, after it is refined, consists mainly of Fe2O3.
Micaceous Iron Oxide differs in form and shape from the well-known iron oxides that are used as pigments for red, yellow, brown and black pigmentation.

Micaceous Iron Oxide shows a flaky, lamellar structure and is dark gray with a metallic sheen.
The term “Micaceous” is used because the lamellar particles are similar to mica.

Micaceous Iron Oxide is insoluble in water, organic solvents and alkalis and is only slightly soluble in strong acids at elevated temperatures.
Micaceous Iron Oxide is non-reactive with most chemicals and is heat-stable up to its melting point of over 1,500°C.
MIO – Micaceous Iron Oxide – is considered an anti-corrosive additive used in many kinds of paints and

Coating for over 100 years and is perhaps the most important barrier pigment used in coatings to protect Structural steel
The flake-like gray or red MIO particles align parallel to the coated surface producing a layer of shield of overlapping plates.

Features of Micaceous Iron Oxide:
-High lamellar micaceous iron oxide content
-Available in a range of particle sizes for different aesthetic effects.
-Abrasion resistant with a Mohs hardness of 6
-Chemically resistant
-UV resistant

Benefits of Micaceous Iron Oxide:
-High lamellar MIO content imparts enhanced barrier properties to anti-corrosive paints and damp proof membranes.
-Platy particles provide reinforcement in coatings and plastics.
-Can be used to dampen vibrations in plastics, rubber and polymer compounds and offers acoustic insulation properties.
-Provides a unique decorative effect in paints and plasters.

Typical Applications of Micaceous Iron Oxide:
-Anti-corrosive paints.
-Decorative paints and plasters
-Damp proof membranes.
-Plastics, rubber and polymer compounds.

Micaceous Iron Oxide also Used In:
-Coatings
-Composites
-Construction
-Industrial
-Rubber
-Thermoplastic Compounds
-Thermoset

Properties & Uses of Micaceous Iron Oxide:
Being a derivative of iron, Micaceous Iron Oxide is red in color.
The protective properties of Micaceous Iron Oxide(MIO) derive from its flake-like particle structure and chemical inertness.
Micaceous Iron Oxide is mainly used in marine paints and can be easily mixed with other colors.

Micaceous iron oxides are very well known and often used pigments in the protective and marine coatings industry for many years.
Micaceous Iron oxide (MIO) or specular hematite, a plate like a pigment, utilizes its lamellar film structure to contribute to corrosion control.

MIO USAGE of Micaceous Iron Oxide:
Micaceous Iron Oxide is used widely in protective coatings due to its outstanding anti-corrosive properties.
When Micaceous Iron Oxide is incorporated into a coating at an appropriate level, the flakes align parallel to the substrate surface, producing a shield or barrier of overlapping plates.
The flakes are impermeable—a physical barrier is formed to the ingress of the water, oxygen and ions that corrode steel and degrade the binder system.

Micaceous Iron Oxide flakes are strong UV absorbers and very weather-resistant.
This protects the surface of the binder system from the degrading action of UV and other weathering elements.
Micaceous Iron Oxide reinforces the binder matrix and increases the substrate adhesion and inter-coat adhesion.

Micaceous Iron Oxide is considered an anti-corrosive additive used in many kinds of paints and coating, it is perhaps the most important barrier pigment used in coatings to protect structural steel.
Micaceous Iron Oxide is also used for durability and reliability on electrical and industrial equipment.

Industrial Applications of Micaceous Iron Oxide:
Due to high percentage of purity (91 to 98%) Ferric Oxide content, Micaceous Iron Oxide Powder has various industrial applications.
Natural Micaceous Iron Oxide Powder is used in manufacturing of Electric Welding Rods and Electrodes (Arc Welding) Industries.
Micaceous Iron Oxide Powder is used as one of the ingredients of flux mixtures.

Micaceous Iron Oxide Powder is used for bridge structural protective coatings, oil rig structural protective coatings, and protective coatings for all types of electrical and industrial equipment where durability and reliability are important.
Micaceous Iron Oxide has been successfully used in various paint primers with single or multiple topcoats in alkyd, epoxy, vinyl, acrylic, polyurethane, and chlorinated rubber.

What Does Micaceous Iron Oxide Mean?
Micaceous iron oxide is a naturally occurring mineral substance used as the primary ingredient in protective coatings and primers due to its anticorrosive properties.

Micaceous iron oxide is water resistant and aligns to metallic surfaces to which it is applied.
Micaceous Iron Oxide forms a protective barrier of overlapping plates and effectively prevents corrosion infiltration.
The flakes formed by micaceous iron oxide are weather-resistant and UV-absorbent.

Micaceous Iron Oxide Fe2O3 Applications:
Micaceous Iron Oxide Fe2O3 can be made into a variety of primers, intermediate coatings, and top coats, which are used in railways and bridges, vehicles (made of electrophoretic cloud iron primer), iron towers, petroleum storage tanks, ships, agricultural machinery, containers, metallurgy, chemical industry (chlor-alkali workshop), pipelines, large water gates, cooling towers, telecommunication towers, blast furnace chimneys, large-scale steel structure spraying, etc.

Barrier effect of Micaceous Iron Oxide:
When Micaceous Iron Oxide based paint is applied to a surface, the flaky pigment particles orientate themselves in multiple layers roughly parallel to the substrate in such a way that interleaving and overlapping take place.
This barrier effect will reduce the diffusion of moisture and pollutants such as NaCl and SO2 through the medium, thus decreasing the chances of corrosion and blistering.

UV shielding effect of Micaceous Iron Oxide:
Micaceous Iron Oxide particles are impervious to UV radiation and therefore protect organic binders from early degradation by light and UV rays.
This is due to the coherent barrier and to the drastic Micaceous iron oxide absorption in the ultraviolet region.

Film reinforcement of Micaceous Iron Oxide:
Paint film reinforcement, which reduces film distortion, is due to the high aspect ratio of MIO and its preferable orientation parallel to the substrate.
Consequently the film shows high mechanical properties and an improved cracking resistance.

Adhesion improvement of Micaceous Iron Oxide:
On galvanized surface, it has been shown that Micaceous Iron Oxide enhances the adhesion of paint layers.
Even allows one coat system to be efficient principally for high-voltage transmission towers.
Moreover this pigment helps to obtain better re-coat ability, especially for epoxy coatings and thus reduces expensive and not very compliant surface treatment.

Thermal expansion of Micaceous Iron Oxide:
Major content of MIO is Fe2O3, which has a similar coefficient of thermal expansion to the metal substrate and consequently reduces flexing and cracking of the paint applied to the metal substrate.

Low soluble salts content of Micaceous Iron Oxide:
Soluble salts can form electrolytes in the paint system, and forming galvanic cells leads to film breakdown.
Micaceous Iron Oxide is extracted in deposits, which have particularly low soluble salts content.
Moreover its air classification process removes most of the amorphous superfine particles, which lead to high soluble salt levels.
Micaceous Iron Oxide shows the surface to be clean of superfine particles.

Food contact of Micaceous Iron Oxide:
Since Micaceous Iron Oxide is free of toxic ingredients, it is extremely useful for nonpoisonous finishes applied to food processing plants such as sugar refineries, dairy plants, breweries and distilleries.

Coloration of Micaceous Iron Oxide:
Micaceous Iron Oxide is grey with metallic sheen and is easily mixed with a large range range of pigments to obtain interesting dark shades (brown, red, grey…).
TiO2 can be added to lighten the shade.
Once again, by removing most of the amorphous super-fine particles, which are natural red oxide, air classification techniques help to ensure greater batch color control and consistency in batch-to-batch coloration

Physical Properties of Micaceous Iron Oxide:
a) Lamellar content= > 70%
b) Standard granulation: 63 microns and finer

Chemical Properties of Micaceous Iron Oxide:
Iron content (expressed as Fe203 according. to ISO 1248)= > 85%

Typical Applications of Micaceous Iron Oxide:
Bridge structural protective coatings, oil rig structural protective coatings, and protective coatings for all types of electrical and industrial equipment where durability and reliability are important.
Micaceous Iron Oxide has been successfully used in various paint primers with single or multiple top coats in alkyd, epoxy, vinyl, acrylic, polyurethane, and chlorinated rubber.

Micaceous Iron Oxide has been used in corrosion and weather resistant paint throughout Europe for more than 100 years.
The Eiffel Tower is one outstanding example.
The horizontal layering of the lamellar (micaceous) particles, overlapping like scales on a fish, gives strength to the paint and acts as an inert barrier to the vertical penetration of corrosive elements and ultraviolet light.

Description of Micaceous Iron Oxide:
A naturally occurring lamellar form of ferrous oxide for use in manufacturing paint coatings.
When viewed under an optical microscope by transmitted light, magnification X 200, the thin flake micaceous iron oxide particles appear as sharply defined red translucent platelets.

Due to the high stability and mechanical strength of the paint film, high purity, high temperature resistance, and especially good anti-chalking properties, the Mica Iron Oxide Pigment can be made into a variety of primers, intermediate coatings, and topcoats.
Micaceous Iron Oxide can also be used to make high-temperature paint and infrared detection paint.

Specification of Micaceous Iron Oxide:
Fe2O3: ≥90%
Moisture: ＜0.5%
Residue on sieve: ＜1.0%
Oil Absorption: ＜17%
Water Soluble matter: ＜0.5%
SiO2 %: ＜3.0
pH of water suspension: 7-9

The mineral known as Micaceous Iron Oxide has been widely used as a protective coating in the last one hundred years, all over the world.

KEYWORDS:
1309 37 1, MIO, Micaceous hematite, Natural lamellar hematite, Specular iron oxide, MIO, Natural specular hematite ore, Iron Oxide, Fe2O3, Iron-III-Oxide

Micaceous iron oxide (MIO) is a crystalline form of iron oxide that differs from the more familiar red, yellow, and brown forms of iron oxide pigments.
Micaceous Iron Oxide's crystals are very easily fractured into thin flakes, giving it a physical form similar to mica.
The use of coatings containing Micaceous Iron Oxide pigments is increasing rapidly in many parts of the world, accelerated by globalization of the manufacturing and specifying industries.

However, Micaceous Iron Oxide has not been adopted in the same way in the United States.
With new sources of high quality Micaceous Iron Oxide becoming available and a reduction in prices caused by greater competition, U.S. specifiers can now seriously reevaluate the use of MIO-containing coating systems.
This article discusses how these pigments work, the factors that affect performance, and key specifying criteria.

Micaceous iron oxide (MIO) is naturally occurring iron oxide with a distinct lamellar/platy morphology.
In coatings, Micaceous Iron Oxide particles align themselves to the substrate and the overlapping platy particles give a formidable barrier to the ingress of water for example for anti-corrosive protection.
Micaceous Iron Oxide also imparts great durability and uv protection to coatings.
The mineral morphology also lends itself well to applications in plastics, rubber and polymer compounds for applications with vibration dampening and acoustic insulation properties are required.

Without doubt, Micaceous Iron Oxide is the most important barrier pigment used in coatings to protect structural steelwork from corrosion.
Micaceous Iron Oxidet has a 100 year record of successful use on many types of steel structures throughout the world.

Micaceous Iron Oxide forms overlapping plates like mail armor.
Micaceous Iron Oxide reflects ultaviolet light, allows water vapor to escape from the substrate, and is chemically resistant.
Micaceous iron oxide is a rare variety of crystalline iron oxide in its natural lamellar form, which gives it anti-corrosion pigment properties with a strong barrier effect.

BENEFITS of Micaceous Iron Oxide:
The lamellar-kind feature of MIO (this is the characteristic that determines the unique quality), in the application phase are oriented to each other parallel to the paint film (something that the normal granular product on the market couldn't obviously do), creating a very strong barrier effect against the influence of UV rays; in the same way, the barrier effect obtained with layers of paint having a thickness of at least 50 microns, prevents the absorption of oxygen, water, organic solvents and alkalis through the product film and this, in particular, increases the anti-corrosive features.
Micaceous iron oxide (MIO) paint is a two-pack polyamide cured epoxy primer/intermediate that has excellent water resistance due to the lamellar shape of MIO anti-corrosive pigment.

Benefits of Micaceous Iron Oxide:
-Excellent abrasion and impact resistance
-Excellent barrier coating for steel structures
-Can be used as primer or intermediate

Property and characteristics of Micaceous Iron Oxide:
1. Shielding effect to prevent corrosive substances and moisture intrusion effect:
Chemically inert sheet-iron pigment in the film within the laminate, moisture penetration difficulties, such as alkyd paints with water, chlorinated rubber and epoxy resin used in conjunction, can greatly improve the ability of anti-rust.
Micaceous Iron Oxide should be used in hot and humid areas, factories, mines and marine areas.

2. Good weather resistant:
Micaceous iron oxide can reflect, absorb ultraviolet light, protecting the paint from damage, have special effect against chalking.
Photo sensitivity weak encountered sunlight, rain, dew, frost, snow, difficult to be damaged, ultraviolet radiation resistant function can be used for anti-corrosion finish.
Does not have chemically react with the paint, the film can maintain long-term flexibility.
Also, the flake pigment is not easy to remove during pulverization than the particulate pigment , still play barrier, thus extending the life of the film.

3. Easy construction, suitable for thick film:
Micaceous iron oxide paint can air spray, high pressure airless spray, roller or brush.
Usually long oil alkyd, a dry film thickness of 20-40??m, iron and alkyd paint a cloud of dry film thickness of 40-60m.
Layered structure having a high hiding power but other oxide coatings does not have.
Low shrinkage during cure the coating, so that the mechanical strength is increased.

4. Strong adhesion between paint film:
Topcoat laminated sheet-iron have appropriate roughness can remain stable adhesion, after use outdoor two, three months, the film surface partially exposed micaceous iron crystals, which can help increase the adhesion on.
Micaceous iron oxide pigments in the paint film can be formed on the uneven surface to improve adhesion of the second coating.

5. Excellent heat resistance:
Micaceous iron oxide grey itself withstand 900C high temperature, and with the silicone paint, can be made into high temperature paint.

6. Non-toxic environmental protection:
MIO itself substantially free of lead, chromium and other heavy metals, and can replace red lead and other anti-rust paint.
Flame cutting or welding can be performed, not as red lead and other toxic lead paint hazards easy welders, serious occupational lead poisoning.

7. Low price:
Micaceous Iron Oxide is the lowest-quality, cost-effective anti-rust paint, it has been widely used in heavy-duty areas.
For intermediate coat over zinc-rich primer coating, both for the entire film play a good shielding effect closed, effectively improve the permeability of the coating and corrosion protection, increased thickness of the coating, reduced smear cost layer.

Micaceous Iron Oxide properties:
-Micaceous Iron Oxides have good dispersibility and a smooth texture.
-AM-200P has a lustrous, natural red color, and BM-200P has a deep, silvery black color.
-These products conform to various standards, including Japanese Standards of Quasi-Drug Ingredients 2006, Europe’s E172, and US’s FDA.

Chemical Name: Micaceous iron oxide
Chemical Formula: Crystalline Fe203

MIO – a Rare Mineral:
Micaceous Iron Oxides (MIO) are rather scarce, and significant natural resources are known to be available in Europe (Austria), Asia (China), Australia and Africa.
There are differences in mineralogy and iron content.

The most important quality criteria of MIO products according to EN ISO 10601 are:
-Content of lamellar particles (minimum 65 % for Grade A, EN ISO 10601)
-Fe2O3 content (min. 85 %)
-Color of product (grey with metallic sheen)
-Particle size distribution (PSD)

MIO (Micaceous Iron Oxide) paints provide protection of structural steel by incorporating flakes that act as fish scales within the paint formula.
Due to the scale like formation, the steel is protected by a shiny barrier that protects against water ingress, UV light and degradation of the steel surface.
As standard, the natural colour of MIO pigment is a dark, charcoal grey.

Some Micaceous Iron Oxide coatings also contain aluminium flake (another lamellar pigment) to lighten the colour.
Micaceous Iron Oxide coatings are formulated for high performance in harsh environments such as steel bridges, oil rigs and offshore environments.

What Is Micaceous Iron Oxide?
Micaceous Iron Oxide (MIO) Coatings contain micaceous iron oxide pigment that imparts outstanding durability and abrasion resistance.
The micaceous iron oxide pigment particles interlock in the film to form a barrier against moisture ingress and improve resistance to degradation by UV light.
Micaceous iron oxide (iron oxide, Fe2O3) is a naturally occurring iron oxide with lamellar shape similar to mica (hence the name).

Micaceous iron oxide is characterised by:
-Black colour
-Lamellar structure
-High inertness in various media (the iron in the mineral has already been oxidised).

Basic properties of Micaceous Iron Oxide:
Property: Value Unit
Moisture: 0.1 [%]
pH: 9 [-]
Hardness (Mohs): 6 [-]
Electrical conductivity: 60 [µS/ cm]
Colour: black [-]
Lamellarity: > 70[%]
Soluble matter: < 0.1 [%]
L.O.I.: 0.6 [%]
Density: 4.7 [kg/ dm3]

Micaceous haematite, or micaceous iron oxide (MIO), was found to make excellent anti-corrosion paint.
In later years virtually all the output from Kelly Mine and other MIO mines was used for this purpose.
With the rapid expansion in the industrial uses of steel, mining activity at Kelly Mine greatly increased, the paint finding use on major structures such as warships for the Admiralty and the Royal Albert Bridge at Saltash for the Great Western Railway.

The paint colour - Battleship Grey - takes its name from this paint.
Nowadays MIO paint is a widely available excellent quality protective paint, as a search of the internet will reveal.
Modern use extends to such structures as bridges, pylons, electrical distribution equipment and oil rigs; at Kelly Mine it is used to protect the pipe to the water turbine!

Nowadays, MIO is mined many countries: Austria, Turkey, Spain,Australia, etc.
The quality of the MIO tends to vary and the softest material makes the best paint.

A paint has three components:
Pigment which is the solid material giving the paints its colour and bulk
Medium which binds the pigment particles together.
Solvent or thinners which make the paint speadable and evaporates after application.

Micaceous haematite has a laminar or flaky structure and the individual flakes are inert and impervious to ultraviolet light and the pollutants which cause corrosion.
When an MIO paint, using micaceaous haematite as the pigment, dries or cures on a surface, the haematite flakes orientate themselves into layers more or less parallel to the surface.
This results in interleaving and overlapping somewhat similar to fish-scales or roof tiles, resulting in a tight seal which acts as an effective barrier to corrosion from water, sea-spray, sulphur dioxide, ammonia and other pollutants; they cannot permeate the packed layered structure of the paint.

MIO flakes are also impervious to ultraviolet light therby greatly reducing deterioration of the binding medium.
Thus MIO paint is an excellent anti- corrosion even by todays exacting standards.

Natural Micaceous Iron Oxide(iron content expressed as Fe2O3according to ISO1248=>85%.) which is a layered mineral with a subtle metallic lustre.
Micaceous Iron Oxide's flake-like shape or lamellar appearance gives protection against Ultraviolet light.

Micaceous Iron Oxide's overlapping layers create a tough barrier for water, salt & other damaging materials.
Micaceous iron oxide is chemically stable & highly efficient in preventing corrosion.
That’s why Micaceous Iron Oxide is highly used in various paint primers with single or multiple coats in alkyd,epoxy,vinyl & chlorinated rubber & in protective coatings,automotive coatings, marine coatings, aerospace coatings,electrodes.

Micaceous Iron Oxide is an alkyd-based coating pigmented with micaceous iron oxide.
Micaceous Iron Oxide is recommended for use as a protective coating on steel structures.
Micaceous Iron Oxide may be overcoated with alkyd based finish or left uncoated.

Micaceous Iron Oxide is a pigment often incorporated into multicoat paint systems to improve weathering and corrosion resistance.
Micaceous Iron Oxide's lamellar nature forms a barrier to penetration of the film, and it is very resistant to degradation.
Used in the final coat Micaceous Iron Oxide gives an attractive grey sparkle finish, or if a colour is required it is normally overcoated with 2 pack polyurethane.

Product Features of Micaceous Iron Oxide:
-Chemical resistant
-Weather resistant

The significant features and uses of micaceous iron oxide (MIO) in zinc-rich primers are discussed.
Micaceous Iron Oxide is widespread in protective coatings due to its outstanding anticorrosive properties, and is used in paints to provide long-term durability.

Micaceous Iron Oxide is insoluble in water, organic solvents and alkalis and is only slightly soluble in strong acids at elevated temperatures.
The recent developments in Micaceous Iron Oxide technology have led to the introduction of a range of ultra-thin pigments with a flake thickness of only 1 to 2 μm.

Micaceous iron oxide (MIO) coatings are called for wherever maximum corrosion protection is essential: Steel bridges, power poles, and even famous structures like the Eiffel Tower or Sydney Harbour Bridge are shielded against the elements with a layer of this specific type of paint.
To ensure the coating actually lasts as long as foreseen by the manufacturer, a certain layer thickness must be applied and checked.

Micaceous iron oxide (MIO) is not – as often assumed – ground iron but is rather a form of the naturally occurring mineral hematite; mixed as an additive into paint, MIO forms an additional, protective barrier against corrosion.
A crystalline iron oxide mineral consisting mainly of iron III oxide, powdered MIO is flaky in texture; when suspended in viscous epoxides, the minerals align themselves parallel to the surface as the paint dries, forming a dense, nearly impenetrable shield of overlapping plates that repels water and other rust-forming elements.
Known as "scale armour paint", Micaceous Iron Oxide coatings are used for extremely heavy-duty applications.

Micaceous iron oxide (MIO) is widespread in protective coatings due to its outstanding anticorrosive properties.
A less obvious use for MIO is as a replacement for zinc dust in zinc-rich primers.
MIO pigment is used in paints to provide long-term durability.

Micaceous Iron Oxide areas of application:
Typical for MIO paint is its red-brown tint.
Famous structures such as the Eiffel Tower in Paris, the Giant Ferris Wheel in Vienna, the Sydney Harbour Bridge and Istanbul’s Bosphorus Bridge are all protected with it.

Micaceous Iron Oxide (MIO) Eisenglimmer is a natural Iron Oxide (Fe2O3) with a fish-scale and plate-like structure.
MIO paints are well approved in heavy corrosion protection and are preferential substances in building protection wherever long life performance is needed.

The MIO Eisenglimmer AS/SG has an excellent lamellar structure.
This lamellar structure creates that barrier effect which is responsible for the long-lasting corrosion protection.
Micaceous Iron Oxide avoids actively the penetration of humidity (salt water, tropical moisture) and air pollution.

This scale-like structure is also the reason for the excellent adhesion to the substrate of anti-corrosion coatings as well as in intermediate layer in multilayers coatings.
Micaceous Iron Oxide acts as an UV filter and protects the binding resin.

The deciding parameter for the immediate corrosion protection is the electrolyte content of pigments in the coating system.
The MIO Eisenglimmer offers a characteristic steelgrey colour with metal shine.

Micaceous iron oxide (MIO) is not – as often assumed – ground iron but is rather a form of the naturally occurring mineral hematite; mixed as an additive into paint, MIO forms an additional, protective barrier against corrosion.
A crystalline iron oxide mineral consisting mainly of iron III oxide, powdered MIO is flaky in texture; when suspended in viscous epoxides, the minerals align themselves parallel to the surface as the paint dries, forming a dense, nearly impenetrable shield of overlapping plates that repels water and other rust-forming elements.
Known as "scale armour paint", MIO coatings are used for extremely heavy-duty applications.

Typical for MIO paint is its red-brown tint.
Famous structures such as the Eiffel Tower in Paris, the Giant Ferris Wheel in Vienna, the Sydney Harbour Bridge and Istanbul's Bosphorus Bridge are all protected with it.

While found primarily on galvanized steel parts, MIO coatings can also be used on non-galvanized steel, iron and aluminium.
However, the reliability and longevity of the corrosion resistance depend on the thickness of the coatings, which are generally applied about 80-120 microns thick.
Just like with normal paint layers, the thickness of MIO coatings can be measured using the magnetic induction method, as hematite itself is antiferro-magnetic; thus, the MIO coatings are usually not magnetic either.

The addition of platelet-shaped minerals to so-called MIO coatings boosts the corrosion protection for structures that are constantly exposed to weather.
Using the handheld instruments from the FMP series and the durable F20H probe, the thickness of MIO coatings can be measured quickly and accurately.

Micaceous iron oxide red is a red powder pigment, it owns high fastness to light, heat and weather, good anti-corrosion resistance, it doesn't change colors even at 1000℃.
Micaceous iron oxide red is recommended for anti-corrosion paints and coatings.
The fineness available is 500mesh, 600mesh, 800mesh, 1000mesh and 1250mesh.
Furthermore, we can produce micaceous iron oxide red according to customers' standard samples.

Applications of Micaceous Iron Oxide:
Micaceous iron oxide red is mainly used in primer, intermediate paint and finish paints of anti-corrosion paints.
As well as anti-rust fillers of adhesives and sealants.

Typical Physical Properties of Micaceous Iron Oxide:
Appearance: Red
Content of Fe: (as Fe2O3, ≥105℃), % 93.0 min.
Oil Absorption,: %   9-12
Volatile at 105℃, %: 0.5 max.
Water Solubles,: %   0.1 max.
Reside (63μm mesh),: %   1.0 max.
Content of SiO2, %: 3.0 max.
pH Value: 6-8

Micaceous iron oxide pigments were previously included in ISO 1248 (classified in the colour group “grey with metallic sheen”) but are explicity excluded from the revised edition published in 2006.
In this revised edition of ISO 10601, the requirements for micaceous iron oxide pigment have been defined more clearly and relate to an essentially lamellar particle shape.
Micaceous iron oxide pigments can vary in composition, particle size range, and particle shape depending on whether they are produced synthetically or, if a refined natural oxide, on the location where the ore was mined.

General Description of Micaceous Iron Oxide:
Micaceous iron oxide red’s main content is α- Fe2O3, the crystal is sheet or plate like hexagonal, it is a large radius to thickness ratio, with diameter from tens of microns to a hundred microns, thickness from a few microns to tens of microns.
Mohs hardness of micaceous iron oxide gray is 5.5-6.5, it has good light resistance, heat resistance, weather resistance, and excellent rust resistance, micaceous iron oxide gray does not change colors even at 1000°C.

Micaceous Iron Oxide Gray - AS Type is a gray pigment with over 65% lamellar content, mainly composed of α-Fe2O3.
Micaceous Iron Oxide has good light resistance, heat resistance, weather resistance, and excellent rust resistance.
Micaceous iron oxide gray is widely used in primer, intermediate paint and finish paints of anti-corrosion paints, heavy duty corrosion protection, decorative metal protection, partial replacement of Zinc-Dust, thin film corrosion protection, powder coating, coil coating, anti-corrosion coating applications, and more.

Synonyms of Micaceous Iron Oxide:
Micaceous hematite
Natural lamellar hematite
Specular iron oxide
MIO
Micaceous iron oxide
Natural specular hematite ore