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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 |
Cr2O3 - 55.25% Al2O3 - 27.1% SiO2 - 11% TiO2 - 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 |
TiO2 - 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) |