Cylinder Express
  2/4 Stroke Cylinder Repair
  Unique Technology
  Endorsements/Links
  Order Forms
  Off Road Bikes
  Karts
  Snow Mobiles
  Liners
  Motorcycles
  Max Power RPMs
APTICOTE CERAMIC 2000
A PROVEN RACE WINNER -  TIME AFTER TIME - WORLD WIDE
  
KEY BENEFITS OF SUPER FINISHED APTICOTE CERAMIC 2000 COATED BORES
  • Ultra wear resistant to vastly extend the Cylinder life.
  • Can operate under the most demanding race conditions.
  • Superior oil retention to 18,000 rpm.
  • Lower friction.
  • Improved resistance to scuffing.
  • Improved power output over original supply or steel sleeves.
   
KEY PROPERTIES OF APTICOTE CERAMIC 2000
  • Apparent Hardness Hv ... 580 to 680
  • Particle Hardness Hv 50 ... 2500 to 3000
  • Particle size ... 0.8 to 1.9 microns
  • Particle Loading ... 12 to 14 %
  • Typical thickness ... 60 to 80 microns
  • Friction (Lubricated) ... 0.08 to 0.12
  • Thermal Conductivity ... 0.22 Cal/Cm 5 C
  • Thermal Expansion ... 0.338 microns/C near 20 C
  • Melting Point ... 1400 C
  • Piston Ring compatibility. Hard Chrome is more suitable for 2 stroke than 4 stroke use.  Molybdenum or TiN coated rings are all OK as are Cast Iron and Steel.
  
APTICOTE CERAMIC 2000 - THE COATING
  • Apticote Ceramic 2000 is a metal matrix coating system especially developed for high performance engine applications.
  • Apticote Ceramic 2000 is unrivalled for coating the cylinder bores of engines (Block/Liners/Sleeves). The process has been tailored to coat a variety of different base materials i.e., Aluminum Alloys, Steel, Cast Iron, MMC's and Hyperutectic alloys.
  • Apticote Ceramic 2000 is made up of an Oleophilic (Oil loving) hard metal coating which is loaded with very small and ultrahard ceramic particles.
  
APTICOTE CERAMIC 2000  - THE HISTORY
  • Developed as Apticote 750C by Poeton Industries' Aptec Technology Division in the late 1980s.
  • Race tested on road/off road.
  • Nickel/Ceramic coating productionized by Porche & BMW.
  • Continued research and development by Poeton Industries led to the launch of Apticote Ceramic 2000 in May 1997.
  • Tested, race proven & adopted in Europe by high performance race engine manufacturers, supported by Poeton Industries. (www.poetonaptec.co.uk)

READ ON IF YOU WOULD LIKE TO KNOW MORE ABOUT APTICOTE CERAMIC 2000

(or click this link if you would prefer to download a copy in WORD format)
  

  

HARD RACING DEMANDS TOUGH COATINGS

APTEC LEADS THE WAY WITH RACE PROVEN COATING TECHNOLOGIES

If you race then winning is everything. It doesn't matter if you're racing Dirt Bikes, Snowmobiles or NASCAR; you still want the best technology and equipment.

This is especially true when it comes down to what drives you forward. THE ENGINE.

You want lower weight, more power and longer life from all the components that make this power plant up. You also need to know that certain costly parts can be repaired back into service with all the performance benefits you need.

Core materials are crucial for engine blocks, cylinders and pistons. They need to be structurally sound to withstand the rigors of high-speed racing but very often their output performance is governed by the conditions found only on the surface of their working areas.

Mechanical finishing (grinding/honing/super-finishing) generally creates these surface-operating conditions. These are then enhanced by surface engineering technologies, which provide optimum wear resistance, low friction, oil retention and corrosion resistance.

History of Apticote Ceramic 2000.

During the 1960's and 1970's, cast and pressure die cast aluminum alloys became the favored materials for engine cylinder construction. Aluminum gave a significant improvement in power to weight performance, was easy to produce in large volumes and had good heat dissipation characteristics. However, aluminum is soft, it wears and galls in sliding contact against most materials and does not retain an oil film. These problems were partially overcome by lining aluminum cylinder bores with cast iron sleeves. This technology had its merits and is still used today in some applications. However, such cylinders have a limited working life and are very poor in terms of fuel consumption, engine emissions or power output.

A refinement to this technology was to replace cast iron liners with electroplated hard chromium directly onto the cylinder bore. This gives good results in reducing overall weight, allowing piston to cylinder bore clearance to be reduced and increasing the working life of the engine. However, the quest for ever improved performance, reduced fuel consumption, longer life and lower emissions has resulted in higher engine speeds and load cycles. It was found that piston ring sliding speeds encountered above 8000/9000-rpm result in hard chromium being unable to consistently retain an oil film. Consequently, such cylinders wear very quickly. The latest technology developed to overcome this problem is a new coating system based on a nickel composite loaded with small particles of ceramic. Such coatings give outstanding oil retention characteristics even at engine speeds as high as 22,000 rpm combined with exceptional wear resistance.

Race engine designers have continued to strive for greater engine performance and require coatings that will adhere to new engine block / liner materials and withstand the rigors of engine / piston combinations running at up to 22,000 rpm. In response to this demand, the Poeton group have completed an intensive research program named Apticote Ceramic 2000 aimed at defining the ultimate composite coating parameters necessary to optimize engine performance.

The major objective of this program was to develop a complete understanding of the process chemistry, deposit characteristics and post finishing parameters. Only then could we ensure continuous quality and performance integrity of all coated blocks, liners and cylinders used in race environments.

Development of Apticote Ceramic 2000 System

The outcome of this research program is a coating technology process system called Apticote Ceramic 2000. This bore coating system has been recognized as a championship winning formulation. It is now used in most forms of high performance motor sport including F1 Grand Prix, Indy Car and NASCAR. This coating system is continually monitored through both extensive laboratory testing and customer feed back to ensure that it can support the ever-changing performance demands.

The Apticote Ceramic 2000 coating process is used by Aptec Motorsport. to coat both new and repaired 2 and 4 stroke engine cylinders, liners and is also applied to a wide range of engine blocks.

A major advantage in using Apticote Ceramic 2000 coating technology for treating aluminum engine cylinders is the ability to rework damaged components. Piston or ring failure while the engine is operating often results in severe damage to the cylinder. The Apticote Ceramic 2000 process offered by Aptec Motorsport can remove the existing coating, weld repair the damaged cylinder, recoat and finish hone to precisely match the new replacement piston.

The oil retention characteristics of Apticote Ceramic 2000 have been fully tested for engines running up to 18,000 rpm.

Optimum Specification for Apticote Ceramic 2000.

  Post honing coating thickness

       

75 - 100 um (Microns)

  Average Ceramic particle size

0.8um (Microns)

  Particle hardness

2,500 Hv

  Coating hardness

550 - 600 Hv minimum

  Co-efficient of Friction

0.6 Dry

  Ceramic inclusion

10% minimum

  Thermal conductivity

0.22 Cal / Cm2C

This process control combined with continual destructive and non-destructive testing combined with customer feedback provides for greater confidence in the field and a reduced risk of failure.

Wear characteristics of Apticote Ceramic 2000 coatings

In addition to the detailed investigation of all chemical aspects of cylinder processing, examination of the tribological properties of nickel/ceramic coatings has been completed. Using our in-house wear facilities, friction and wear characteristics of such coatings with a range of hardness's and compositions was determined against common piston ring materials. The data generated show a minimum coating hardness, below which, severe wear can occur. A similar result is obtained for the level of ceramic inclusion required for the coating. Using this result, we have specified minimum requirements for hardness and inclusion rate for all Ceramic 2000 bore coatings that are above this critical level.

Repair Procedure for Worn / Damage Cylinders using Apticote Ceramic 2000

Repair of damage is generally confined to 2/4 Stroke Cylinders rather than Liners and parent metal engine blocks. The most common repair steps used are as follows:

  1. Remove the existing coating.

  2. Inspect.

  3. Weld any damage.

  4. Bore out the weld to produce a clean bore surface.

  5. Apply Apticote Ceramic 2000.

  6. Precision Diamond Hone to required size.

Cylinders are repaired either back to stock size or to an 'Overbore' size.

Honing technology.

With any engine bore coating system, the deposit will only provide optimum performance when combined with the correct surface finish. Therefore, Aptec Motorsport. working closely with one of Europe's leading performance engine honing specialists were able to produce the optimum surface finish to match the optimum Apticote Ceramic 2000 deposit characteristics. To transfer this development work into the production environment, Aptec Motorsport. has invested heavily in a unique honing system, which allows for the production of finished bores with the optimum surface finish to unparalleled roundness and straightness even across port bridges.

APTICOTE - TESTED TO THE LIMIT, RACED TO THE MAX

  

   
 
 
 
  Click here if you would like us to keep you informed of new products and new developments by email.  
 
 
 
Site Map  Home  Top  
Web Site Design
Midland Alpha

 
Primary communication point:
Telephone: 01452 300800
Fax: 01452 500400
Email: aptec@poeton.co.uk
Web: http://www.poetonaptec.co.uk
APTEC Ltd
Southbrook Road
Gloucester
GL4 3DN