"Engineered Surfaces for Exceptional Performance"
"Engineered Surfaces for Exceptional Performance"

Article Index

Ceramic Series

The ceramic-based thermal spray Flexicord products are used to increase the life of components exposed to demanding process conditions. Ceramic Flexicord products are available in a range of coating formulations to cover a wide range of applications including resistance to mechanical wear, corrosion, thermal insulation, electrical insulation, diffusion barrier.

Pure Alumina Thermal Spray Flexicord (Al2O3)

Features & Benefits

  • Corrosion resist in most acid & alkaline environments.
  • Suitable for high-temperature applications.
  • Good diffusion barrier coating for precious metals (platinum).
  • High thickness possible of up to 5 mm make crucibles and other components.
  • Low thermal conductivity -- 0.01 kcal/cm at 1000°C (1832°F).
  • Bond strength – 25 MPa (625 psi).

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
700-770 Hv300 117 mm3 3.6 g/cm3 
(0.13 lb/in3)
8 -12% 8 -12 μm Ra 7 x 10-6/K at 1000°C (1832°F)

Black Corundum 15 Thermal Spray Flexicord (Al2O3 15% TiO2)

Features & Benefits

  • Good absorption & diffusion of infrared rays (IR).
  • Moderate corrosion resistance in acidic & alkaline environments.
  • Moderate abrasion resistance.
  • Suitable for hand-held spraying on large surfaces.
  • Slightly conductive.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
900 - 1000 Hv100 32 mm3 3.6 g/cm3 (0.13 lb/in3) 6 - 8% 7 - 9 μm Ra 7.5 x 10-6/K at 700°C (1292°F)

Black Corundum 50 Thermal Spray Flexicord (Al2O3 50% TiO2)

Features & Benefits

  • Good absorption & diffusion of infrared rays (IR).
  • Moderate corrosion resistance in acidic & alkaline environments.
  • Moderate abrasion resistance.
  • Suitable for hand-held spraying on large surfaces.
  • Slightly conductive coating properties.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
900 - 1000 Hv100 38 mm3 3.6 g/cm3 (0.13 lb/in3) 6 - 8% 7 - 9 μm Ra 7.5 x 10-6/K at 700°C (1292°F)

Black Body Thermal Spray Flexicord

Features & Benefits

  • Black Body ceramic coating for solar absorbers.
  • Coating can be easily applied on site.
  • High surface roughness: Rz =  56 μm (promotes absorptivity).
  • High Solar absorpitivity: 93.5%: promotes heat absorption.
  • Black color + absorptivity stable on 25 - 900°C (77 - 1652°F).
  • Low shrinkage: 0.75% between 25 - 900° (77 - 1652°F).

Physical Properties

Composition Coating Hardness Coating Density Coating Porosity Pore Diameter Coating Roughness
Cr2O - 55.25%
Al2O3  - 27.1%
SiO2  - 11%
TiO - 6.65%
710 - 920 Hv300 3.9 g/cm3 (0.13 lb/in3) 8 - 10% 5 - 10 μm 56 μm Rz

Blue Corundum Thermal Spray Flexicord (Al2O3 3% TiO2

Features & Benefits

  • Good corrosion resistance in acidic & alkaline environments.
  • Moderate abrasion resistance.
  • Suitable for hand-held spraying on large surfaces.
  • Coating thickness over 1mm possible.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
800 Hv300 55 mm3 3.5 g/cm3 (0.126 lb/in3) 6 - 8% 6 - 8 μm Ra 7.5 x 10-6/K at 700°C (1292°F)

Ti-Elite Thermal Spray Flexicord (Al2O3 13% TiO2)

Features & Benefits

  • Excellent sliding wear resistance.
  • Excellent smooth finish after grinding – Ra from 0.2 – 0.4 μm.
  • Bond strength on NiCr – 57 MPa (8260 psi).
  • Moderate corrosion resistance – can be sealed to improve resistance.
  • Slightly conductive – ideal for textile applications.
  • Recommended for pump sleeves, bushings, rods, textile friction parts & mud pump shafts.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
1010 Hv200 51 mm3 3.6 g/cm3 (0.13 lb/in3) 4 - 7% 3 - 4 μm Ra 7.5 x 10-6/K at 700°C (1292°F)

Ti-Tex Thermal Spray Flexicord (Al2O3 40% TiO2)

Features & Benefits

  • Excellent sliding wear resistance.
  • Excellent smooth finish after grinding – Ra from 0.2 – 0.4 μm.
  • Bond strength on NiCr – 57 MPa (8260 psi).
  • Moderate corrosion resistance – can be sealed to improve resistance.
  • Slightly conductive – ideal for textile applications.
  • Recommended for pump sleeves, bushings, rods, textile friction parts & mud pump shafts.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
950 Hv200 6 mm3 3.6 g/cm3 (0.13 lb/in3) 3 - 6% 3 - 4 μm Ra 7.5 x 10-6/K at 700°C (1292°F)

Spinel Thermal Spray Flexicord (Al2O3 30% MgO)

Features & Benefits

  • Suitable for contact with molten metals (Aluminum and Zinc).
  • Ideal thermal barrier coating for crucibles, chutes & fusion pots.
  • Lower wettability versus Aluminum and Zinc ideal coating for molds, chutes & funnels.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
730 Hv300 76 mm3 3 g/cm3 (0.10 lb/in3) 10 - 17% 7 - 12 μm Ra 8.8 x 10-6/K at 980°C (1688°F)

Magnesium Zirconate Thermal Spray Flexicord (ZrO2 20% MgO)

Features & Benefits

  • CTE of magnesium zirconate is close to the CTE of steel.
  • Provides protection against contact for molten steel for a short time.
  • Acts a bond coat for slurries on steel chutes and moulds.

Physical Properties

Coating Hardness ASTM G65 Volume Loss Coating Density Coating Porosity Coating Roughness CTE
760 Hv300 162 mm3 4.9 g/cm3 (0.17 lb/in3) 10 - 15% 10 - 15 μm Ra 10 x 10-6/K at 1000°C (1843°F)

Titania Thermal Spray Flexicord (TiO2)

Features & Benefits

  • Used as bond coat when Nickel formulations aren’t suitable.
  • Low AC dielectric strength – 4 KV/mm.
  • Low resistivity – approximately 2 x 104 Ω/cm at 700°C (1292°F).
  • Soluble in alkalis & sulfuric acid, but resistant to attack in many other environments.

Physical Properties

Composition Coating Hardness ASTM G65 Volume Loss  Coating Density Coating Porosity Pore Diameter Coating Roughness CTE
TiO- 100% 950 Hv300 21 mm3 4.1 g/cm3 (0.15 lb/in3) 3 - 4% 5 μm 4 - 8 μm Ra 8.5 x 10-6/K at 1000°C (1832°F)