6 Best Abrasion-Resistant Coating and Lining Suppliers for Cement Cyclones and Chutes

Abrasion-Resistant Coating Suppliers: Key Points

• Six suppliers with named abrasion products for cyclone and chute duty: Polylloy Coatings, Kalenborn, Castolin Eutectic, Chesterton, Belzona and Densit (ITW).
• Polylloy's WearGard®-625S is a thin nano-ceramic coating for hot abrasion to 625 °C (1,157 °F), with Taber abrasion below 30 mg on its bulletin.
• Cold sliding abrasion and heavy lump impact are often better served by ceramic tiles or thick trowelled linings such as Kalenborn KALCRET or Densit WearFlex.
• Erosion-corrosion is wear and acid attack feeding each other: particles strip the corrosion layer, fresh steel corrodes, and the roughened surface erodes faster.
• Published dry service limits differ widely: 160 °C for Chesterton ARC 858, 270 °C for Castolin MeCaWear 350, 400 °C for KALCRET ANX and WearFlex 2000, 625 °C for WearGard-625S.
• Polylloy formulates and supervises; certified partners apply. Pricing is project-specific for every supplier.

Abrasion-resistant coating suppliers for cement cyclones and chutes include Polylloy Coatings (WearGard-625S), Kalenborn (KALCRET), Castolin Eutectic (MeCaWear 350), Chesterton (ARC), Belzona (1812) and Densit (WearFlex). Polylloy fits hot abrasion to 625 °C on steel; cold sliding abrasion and heavy impact often suit ceramic tiles or thick trowelled linings better.

Abrasion-Resistant Coating Suppliers for Cement Cyclones and Chutes

Abrasion-resistant coating suppliers are manufacturers of hard, well-bonded coatings and trowelled linings that slow material loss from sliding abrasion, impact and particle erosion on steel equipment such as cyclones, chutes, hoppers and transfer points. Their products range from thin ceramic-filled polymer or nano-ceramic coatings to thick cement-bonded or chemically bonded ceramic linings.

Who This List is For

The list covers steel cyclones, chutes, hoppers, transfer points and separators in cement plants. Preheater tower cyclones are normally refractory-lined, so the focus is unlined steel such as dedusting, separator and coal mill cyclones, ducts and chutes. Polylloy Coatings publishes the page; all six entries follow the same structure, from each maker's published information.

Erosion-Corrosion and Abrasion Damage in Cement Cyclones and Chutes

Erosion-corrosion and plain abrasion both remove steel from cement cyclones and chutes, but they need different protection.

What Erosion-Corrosion Is

Erosion-corrosion is metal loss in which particle impact or flow removes the protective corrosion layer while acid or moisture attacks the freshly exposed steel, so each process speeds up the other. The cycle runs in three steps:

1. Particles strip oxide and corrosion product from the surface.
2. Bare steel corrodes in condensate.
3. The roughened, weakened surface erodes faster.

What Causes Abrasion Damage in Material Handling Equipment

Abrasion damage in material handling equipment comes from three wear modes. Sliding abrasion acts along chute floors and hopper walls, impact acts at chute landing zones and transfer points, and particle erosion acts where dust-laden gas strikes cyclone inlets, scrolls and cones. Particle hardness, velocity, impingement angle and temperature set the rate.

Cement cyclones wear quickly because hard raw meal, clinker dust and quartz move at high gas velocity with continuous throughput. Cool walls can also drop below the acid dew point, typically 120 to 160 °C depending on sulfur trioxide (SO3) and moisture (International Cement Review (ICR), May 2026), adding condensate to the wear. Zone-by-zone detail is in wear resistant coatings for cyclones and chutes.

How to Stop Erosion-Corrosion

Stopping erosion-corrosion means addressing both halves. Choose a protection with documented abrasion resistance and chemical resistance to the condensate, keep metal above the dew point where possible through insulation and air in-leakage control, and reduce velocity or correct distorted inlets where the process allows.

Selection Criteria for an Abrasion-Resistant Coating Supplier

Each abrasion-resistant coating supplier was assessed against five criteria:

• The wear mode the product is built for: fine-particle erosion, sliding abrasion or impact.
• Published service temperature, dry and wet.
• Form: thin bonded coating versus thick trowelled or cast lining, and the weight and anchoring that implies.
• Corrosion resistance where condensate is present.
• Maker-stated cyclone, chute or hopper use and available test data.

Taber abrasion data (ASTM D4060) needs care. Lower mass loss means better rub-abrasion resistance under that test, but compare only results with the same wheel, load and cycles, and remember that Taber does not reproduce high-velocity particle erosion.

Abrasion-Resistant Coating Suppliers at a Glance

The table lists the six suppliers with each maker's published dry limit; SiC means silicon carbide. Coatings and linings sit together because buyers shortlist both for the same zones.

Polylloy Coatings: WearGard-625S for Hot Abrasion to 625 °C

Polylloy Coatings formulates, supplies, specifies, trains and supervises; certified partners apply its coatings.

Suited To

WearGard-625S suits hot, dust-laden steel wear zones where temperature rules out polymer liners. Its bulletin lists high-temperature ducts in cement and lime and fans and ducts in coal power and waste incineration; cyclones, chutes, hoppers, transfer points and separators are Polylloy's portfolio scope, not bulletin applications.

What It Is

WearGard-625S is a two-component nano-ceramic abrasion-resistant material rated to 625 °C (1,157 °F), applied over Society for Protective Coatings (SSPC) SSPC-SP10 near-white blast with a profile above 3 mils (75 µm). It is one of Polylloy's corrosion protection solutions for severe service.

Key Features

• Bulletin data: Taber abrasion below 30 mg (CS-17, 1 kg, 1,000 cycles); Shore D above 95; adhesion above 1,000 psi (ASTM D4541); one-week immersion below 1.0% in 50% sodium hydroxide (NaOH) and below 0.5% in 36% sulfuric acid (H2SO4).
• Related dust-service record: FlueGard®-225SQC on a fan housing at a French cement plant, exposed to hydrogen fluoride (HF), hydrogen chloride (HCl), sulfur oxides (SOx) and high-velocity dust below 250 °C continuous, has about 24 months in service. Options for induced draft (ID) fans are compared under ID fan housing corrosion protection.
• FlueGard-455CHT (Taber 20 mg, 455 °C (850 °F)) on a Swiss cement plant duct carrying 1 to 2 g/Nm³ dust at about 13 m/s showed no visible widespread delamination in inspected areas at about 17 months.

Cost Factors

WearGard-625S cost is project-specific: wear-zone mapping, area, preparation, access, freight and outage timing. It is heat-cured, and final heat cured activation is completed during start-up using process heat.

Pros and Cons

Pros

• A published 625 °C service rating for hot abrasion on thin steel.
• Chemical resistance data for erosion-corrosion zones, and no tile joints on curved scrolls and cones.

Cons

• No completed WearGard-625S case study is published yet, so proof is bulletin data plus related FlueGard dust service; cyclone and chute scope rests on Polylloy's portfolio statement.
• Heavy lump impact and cold sliding abrasion are often better served by ceramic tiles or thick linings.
• Not immersion-rated; needs start-up heat and SSPC-SP10 preparation.

Kalenborn: KALCRET Trowelled Hard-Material Linings for Cyclones and Chutes

Kalenborn supplies KALCRET as trowelled hard-material linings.

Suited To

KALCRET suits cyclones, bunkers, chutes, silos, classifiers, pipelines, troughs and channels handling abrasive bulk material, where a thick lining is acceptable.

What It Is

Kalenborn describes KALCRET ANX as a cement-bound trowel compound based on hard materials such as basalt, applied onto reinforcement.

Key Features

• Application temperature up to 400 °C per the maker.
• Supplied in 25 kg bags, with prefabricated moulded parts also offered.

Cost Factors

KALCRET cost is project-specific: zone area and geometry, thickness, access, labour and outage timing, plus lining weight and reinforcement.

Pros and Cons

Pros

• Maker-stated cyclone and chute use.
• Lining depth for sliding abrasion where coatings wear through.

Cons

• 400 °C limit for ANX; other KALCRET grades need their own data sheets.
• A thick cement-bound lining adds weight, and the product page states no resistance to acid condensate.

Castolin Eutectic: MeCaWear 350 Ceramic Epoxy for Erosion at Elevated Temperature

Castolin Eutectic offers MeCaWear 350 for severe erosion.

Suited To

MeCaWear 350 suits severe erosion at elevated temperature on cyclones, chutes, bag houses, scrubbers, wear plates, air heaters, pulverizers and fly ash separators.

What It Is

Castolin Eutectic lists MeCaWear 350 as a two-component, 100% solids ceramic epoxy composite with zero volatile organic compounds (VOC), on novolac chemistry, reinforced with fine silicon carbide.

Key Features

• Dry service to 270 °C (518 °F) and wet service to 150 °C (300 °F) per the maker.
• Stated sag resistance of 1,000 µm (40 mils).

Cost Factors

MeCaWear 350 cost is project-specific, set by zone area, thickness, preparation, access and outage timing.

Pros and Cons

Pros

• The maker names cyclones and chutes.
• Published dry and wet service limits.

Cons

• Dry limit 270 °C, so hotter cyclone and duct service needs another product; wet limit 150 °C.
• The product page does not address heavy lump impact.

Chesterton: ARC Ceramic Composites for Erosion and Corrosion

Chesterton's ARC range covers trowelled ceramic composites for repair and protection.

Suited To

Chesterton ARC suits rebuilding and protecting fans, housings, pipe elbows, pump casings and similar parts that suffer erosion, corrosion and chemical attack at moderate temperature.

What It Is

Chesterton lists ARC 858 as a trowelable ceramic composite applied at 1.5 mm (60 mils) or more. A Chesterton case study describes industrial dryer cyclones at a waste recycling plant lined with ARC 855 primer and trowelled ARC BX1 and BX2 as an alternative to ceramic tiles.

Key Features

• ARC 858: dry service to 160 °C (320 °F) and wet service to 70 °C (160 °F) per the maker.
• Cyclone case: stainless substrate blasted to Sa 2.5 with a 75 µm profile.

Cost Factors

ARC composite cost is project-specific, with trowelled thickness a main driver.

Pros and Cons

Pros

• A documented cyclone application and a broad repair-composite range.

Cons

• 160 °C dry limit for ARC 858; ARC BX1 and BX2 temperature limits to confirm on Chesterton data sheets.
• Trowelled composites are thicker and heavier than a sprayed coating.

Belzona: 1812 Ceramic Carbide FP for Fine-Particle Abrasion

Belzona offers Belzona 1812 for fine-particle abrasion.

Suited To

Belzona 1812 suits fine-particle erosion such as cement dust in pipework, bends, elbows and valves, and lining worn hoppers, chutes and mixer blades.

What It Is

Belzona lists Belzona 1812 (Ceramic Carbide FP) as a two-part epoxy-based composite with hard ceramic aggregates, built for fine particle abrasion; coarse particles are covered by Belzona 1811.

Key Features

• The maker names cement manufacture as its fine-particle erosion example.
• Also used to bond and grout tiles and wear plates, so it can pair with a tile lining.

Cost Factors

Belzona 1812 cost is project-specific to the repair area and thickness.

Pros and Cons

Pros

• Targeted at the fine dust typical of cement and usable in place for repair.

Cons

• The product page states no temperature limit, so hot cyclone duty needs Belzona's data sheet.
• Coarse material needs a different grade.

Densit (ITW): WearFlex 2000 Chemically Bonded Ceramic Wear Linings

Densit is an ITW Performance Polymers brand, and WearFlex 2000 is its thick ceramic wear lining.

Suited To

Densit WearFlex 2000 suits heavy erosive wear on steel casings where a 25 to 40 mm trowelled ceramic lining can be anchored.

What It Is

ITW Performance Polymers lists Densit WearFlex 2000 as a chemically bonded corundum-ceramic, trowellable one-component ready-mix in 25 kg bags, installed on expanded metal mesh welded to the steel casing.

Key Features

• Heavy erosive wear to 400 °C (750 °F) per the data sheet; consumption is published for 25 mm and 40 mm linings.
• WearFlex 2000 HT is a higher-temperature variant rated to 2,190 °F on its data sheet, well above WearGard-625S's 625 °C.

Cost Factors

WearFlex 2000 cost is project-specific; mesh welding and lining thickness drive material and labour.

Pros and Cons

Pros

• A thick ceramic answer for heavy erosion, with a variant for temperatures far above any coating on this list.

Cons

• Weight and welded anchoring, and a thick lining takes more outage time to install than a coating.
• Maker-stated cement and cyclone references are not confirmed on the data sheet.

How the Six Abrasion-Resistant Coating Suppliers Were Chosen

Six abrasion-resistant coating and lining suppliers are listed: Polylloy and five established wear-protection manufacturers (Kalenborn, Castolin Eutectic, Chesterton, Belzona and Densit (ITW)). Each product was confirmed on the maker's own website in October 2026.

Polylloy Coatings, the publisher of this page, is listed first; the order is not a ranking. Kalenborn and Castolin Eutectic name both cyclones and chutes on their own pages, while Polylloy's cyclone and chute scope is portfolio-level and its clearest fit is hot abrasion above polymer limits. Match each entry to the wear mode and temperature of the zone rather than to its position.

How to Choose Abrasion Protection for Cement Cyclones and Chutes

Choosing abrasion protection for cement cyclones and chutes follows five steps:

1. Map each zone's wear mode: erosion, sliding or impact.
2. Record metal temperature and whether condensate forms.
3. Above 400 °C on thin steel, shortlist a high-temperature coating such as WearGard-625S or a refractory-grade lining.
4. For cold sliding abrasion and heavy impact, favour ceramic tiles, liner plate or thick linings such as KALCRET or WearFlex.
5. Where acid condensate and dust combine, require both abrasion and chemical resistance data.

Many units need two answers: a lining where lumps land and a coating on curved scrolls and surrounding steel. The trade-off is set out in ceramic lining vs wear coating, and hotter duties in high temperature coatings above 400 °C.

Pricing is project-specific for every supplier, so compare on the same zone and evaluation period. To scope a cyclone, chute, hopper or transfer point, request a coating evaluation with coated area, metal temperature, material handled, gas chemistry, abrasion mode, location and outage timing.

FAQs

What is the Right Abrasion Resistant Coating for Cement Cyclones?

The right cement cyclone coating depends on temperature and wear mode: for hot cyclone steel, WearGard-625S is rated to 625 °C (1,157 °F) with Taber abrasion below 30 mg. Castolin MeCaWear 350 lists cyclones to 270 °C dry. Thick linings such as Kalenborn KALCRET or Densit WearFlex suit heavy erosion to 400 °C where weight and anchoring are acceptable.

What is Erosion Corrosion and How Do You Stop It?

Erosion-corrosion is metal loss where particles strip the protective corrosion layer while acid or moisture attacks the exposed steel, so each speeds the other. Stop it by using protection with both abrasion and chemical resistance, keeping metal above the acid dew point where possible, and reducing gas velocity or correcting distorted inlets where the process allows.

How Do We Protect Cyclone Steel from Abrasion and Corrosion Together?

Choose a protection with published abrasion data and chemical resistance to your condensate, then confirm the temperature limit. WearGard-625S lists Taber below 30 mg and low weight gain in one-week 36% sulfuric acid and 50% sodium hydroxide tests, though it is not rated for immersion; FlueGard-455CHT adds acidic and alkaline condensate resistance to 455 °C (850 °F).

Why Do Cement Cyclones Wear Out So Quickly?

Cement cyclones spin hard raw meal, clinker dust and quartz against inlet scrolls and cones at high gas velocity, continuously. Where walls cool below the acid dew point, typically 120 to 160 °C, condensate adds corrosion to the wear and erosion-corrosion accelerates metal loss.

What Causes Abrasion Damage in Material Handling Equipment?

Three wear modes cause most damage: sliding abrasion along chute floors and hopper walls, impact where lumps land at transfer points, and particle erosion where dust-laden gas strikes surfaces. Particle hardness, velocity, impingement angle and temperature set the rate, and moisture or acid condensate turns slow wear into erosion-corrosion.

Is a Ceramic Reinforced Coating Suitable for Transfer Point Wear?

Yes for sliding abrasion and erosion on surrounding steel, less so where heavy lumps land. Ceramic-filled composites such as Belzona 1812 or Chesterton ARC suit moderate temperatures, and Belzona also bonds tiles. Heavy impact at landing zones usually needs ceramic tile, liner plate or thick linings, with coating on the adjacent steel.

Is There an Abrasion Coating Rated to 625 °C?

Yes. WearGard-625S from Polylloy Coatings is a two-component nano-ceramic abrasion-resistant material rated to 625 °C (1,157 °F), with Taber abrasion below 30 mg and Shore D hardness above 95 on its bulletin. Certified partners apply it over SSPC-SP10 blast, and final heat cured activation is completed during start-up using process heat.