Heat Dispersion Coating Materials

*Introductions

Combinations of nano (10-30um)sized liqudized ceramics and Hexagonal nano structural graphites conducting excellent thermal performances sublimation point and good thermal shock stability,and physical characteristics -good electrical insulator, good heat conductivity and good high temperature lubrication qualities- make it an interesting ceramic material. It provides the most valuable coating on the market and it can be applied onto virtual any surfaces/material that can benefit better thermal managements. Thanks to our binding technology of nano ceramics of 7h hardness, the combinations of nano liquid ceramics and hexa graphites constructions finally enhances of  your coating dulability and bondability as well as weatherbility.

*Key Properties

The High poly products possesses such outstanding characteristics as density of only 2.27 g/cu cm,

a 2600 melting point, high chemical inertness and corrosion resistance, stability in air to 1000,

resistance to thermal shock, high electrical insulation value, and high thermal conductivity (above

700, this exceeds the conductivity of BeO).

*Advantages :

1.High thermal conductivity Good thermal shock resistance

2.Increase performance and reliability by thermal management Microwave transparency

3.Excellent radiated heat transfer Chemically inert, corrosion and oxidization resistance

4.Low thermal resistivity and expansion Excellent lubrication properties with low coefficient in wide temperature

5.Low dielectric constant and loss tangent Withstand high temperature (up to 2600°C)

6.Increasing air/surface cooling areas Non-wetting surface protection layer coat

7.Non toxic Good chemical inertness

*Features and Benefits

High thermal conductivity of 100~250 W/mK

Low thermal resistance

Low dielectric constant and loss tangent

Excellent radiated heat transfer

Low dielectric constant

Easy to use

*Applications

Heat sinks Turbo chargers Heat exchangers Furnaces PCB boards Engines

Power components Motorcycle/scooter CVT components High power LED housings

*APPLICATION INSTRUCTIONS

The popular application method is spraying. Brushing and dipping also provide good results.

Surface Preparation

All surfaces should be clean and dry and free of any grease, oil, loose scale or particles and drawing compounds. If the surface is shiny and smooth, some surface roughening with a fine-grain sandpaper may be necessary. Typical material surfaces include metals, refractory ceramics, graphite, etc.

Coating Preparation

Shaking and stirring should be done until the coating is well suspended and uniform in texture. Coatings can be used straight from the container or thinned with water.

Spraying

For optimum results, some spray techniques should be followed.

1. Use standard spraying equipment such as Binks Model No. 7 spray gun at approximately 50 psi.

2. At a distance of 6 to 12 inches, use short bursts rather than a continuous spray. This distance and technique will inhibit a thick layer from building up and allow for a uniform, homogeneous surface.

3. Coating should be applied in thin layers (approximately 15-30μm) and kept as dry as possible during spraying to minimize cracking and peeling.

4. Let the applied layer air dry completely before applying subsequent layers. This will prevent cracking and flaking, thus saving re-work time. An ideal coating can be obtained by heating the substrate to 70 prior to spraying.

5. During multiple coatings adjust the spray angle and sweeping motion in order to cover all pores and surfaces. Make sure to start the gun facing away from the surfaces to be sprayed due to initial spurting.

Many guns will exhibit this tendency to fluctuate at start-up and will adversely affect your resulting surface.

6.put them into heat chamber 220c for 10mins and take them out

7.cool down up  more than one days to have right properties of hardness of 7h. or to have the right properties of hardness and oil based ink washable properties , it may take up to max 7days depending on the heat chambers abilities.

Clean Up

Always clean air tools or brushes immediately in water after use. In some cases, our coatings can become hard to remove when cleaning is postponed. Special cleaning attention should be given to gun orifices, needles and hoses.

*Solutions

The most common problem is excessive thickness in coating layers, resulting in flaking,

peeling and cracking. If you can't apply a thin layer, then the mixture is too thick. One thick

layer is not a replacement for multiple applications of thin layers. The following table provides

-A summary of some common problems with coatings applications-