CERAMIC COATINGS (TBC's)
Ceramic coatings or sometimes known as Thermal Barrier Coatings. What is a TBC?
Thermal Barrier Coatings (TBCs) are ceramic materials which are widely used on modern aero engines. They can be applied to vehicle exhausts, turbocharger casings, heat shields and other vehicle components to reduce heat transfer and improve vehicle performance. Heat soak from hot exhaust systems transfers into other vehicle components causing reduced performance or damage. TBCs are used in motorsport and on high-performance vehicles to reduce this effect. The TBC's give two benefits: Keeping the heat in the exhaust system reduces under bonnet temperatures. TBC's also keeps the heat energy in the exhaust gas which improves the thermodynamic performance of the turbocharger. Both effects enable more power to be produced and improve reliability.
We use what is known as a "flame" application" which is a ceramic powder melted via oxy / acetylene and applied with instant results. The process is typically a two part process with a bond coat of Sillica Bond and a top coat of a suitable ceramic which varies in colour based upon the temperature limits required.
What about Colours?
The list on the right are standard colours, however, it is possible and many do require a specific colour. We can therefore provide a range of colours in addition which are high temp spray on paints which will not peel or flake to enhance the look of the finished item.
Application? How do we do it?
The exhaust should be clean and free from any grease or oil. Degreasing - Any approved industrial solvent may be used to completely remove grease or oil from the surface. It is normal to grit blast the components surface prior to applying the coating system; this is to produce the ideal receptive surface.
Shot Blasting- The standard of surface cleanliness required is as Swedish Standard SA3. Surfaces not being treated should be masked before blasting.
Application - this is the detailed bit. The flame gun driven by oxy / acetylene melts powder on to the substrate and instantly applies an effective coating. No curing or long time cooling is required after application.
How Long Does It Take? - Typically for a 4 cylinder manifold - approx 40 minutes to apply each coating (bond coat and ceramic coat)
Car Exhausts & Manifolds TB Coated
Bond Coats: 99815 Self-bonding, high bond strength, low shrink Powder, service temp ≤ 980 C (1796F)
99636 Self-bonding, high bond strength, low shrink Powder, service temp ≤ 800 C (1472F)
99627 Self-bonding, high bond strength, low shrink Powder, service temp ≤ 650 C (1200F)
Top Coats: 99220, 99255, 99205, 99216 or 99275 Ceramic Powders used as a thermal barriers.
99275 will give the best thermal barrier properties.
Typical Colours: 99220 – Dark Blue – Service Temperature ≤ 540 C (1000F)
99255 White – Service Temperature ≤ 1650 C (3000F)
99205 Light Grey - Service Temperature ≤ 1100 C (2010F)
99216 Grey - Service Temperature ≤ 540 C (1000F)
99275 Creamy White - Service Temperature ≤ 900 C (1650F)
How much does it cost?
It's always best to speak to us in this regard as each job is so different. Please call Andy to discuss your requirements on either 01630 638200 or 07426 193224