Boron nitride paste, high temperature resistant paste, thermal paste, mold release
Packaging: 150 gr., custom packaging.
Content: wurtzite boron nitiride powder (10/7 micron), 40% in water/alcohol soluble composition.
Properties: high temperature resistance and conductivity, dielectric strength (eliminates the risk of shorting out).
Thermal conductivity - 2.7 watt/centimeter/°C
(Thermal conductivity of wurtzite boron nitride powder- 7.4 watt/centimeter/°C compared to silver with 4.29 watt/centimeter/°C)
Application:
- mold release;
- mold release;
- detaching and protective for high temperatures (up to 2000 °C), accelerates dismantling of connections operating at high temperatures, anti-stick coating;
- thermal conductor, including for more effective heat distribution in 3-d printers' hot blocks, reducing clogs and making removing nozzles easier;
- facilitates cutting of hard materials, extends the service life of cutting tools, provides a lower operating temperature.
How it works: apply uniform layer; composition will evaporate under high temperature, leaving boron nitride on the surface; to some extent it's also stress resistant.
On the first heating there is a mild burning plastic smell, which is the glycating agent evaporating, so for first indoor use ventilation is needed.
On the first heating there is a mild burning plastic smell, which is the glycating agent evaporating, so for first indoor use ventilation is needed.
If smell is an issue, buy wurtzite boron nitride powder and make water mixture (1:1 by weight).
Directions of use:
- General: apply uniform layer to the surface and let it dry;
- 3-d printer cartridges (thermistor & heater) and heat breaks: coat the surface, install while the paste is still wet and let it dry before heating up;
- Nozzles: apply small amount to threads of the nozzle (do not apply the paste to the threads of the heater block), install the nozzle while the paste is still wet and let it dry before heating.
Why it's better:
- Thermal expansion of wurtzite boron nitride (according to Ioffe Institure) is
approx. 1.5 lower than that of hexagonal boron nitride (in competing solutions) and consequently of other materials. Which means
higher stability of coating layer under high temperatures.
- Thermal conductivities of wurtzite crystal, parallel and perpendicular to the axis, are identical. Which means higher stability of thermal properties in comparison to hexagonal boron nitride.
PERFORMANCE SAMPLES
High temperature resistance of 100% cotton, impregnated with Wurtzenite™ Boron Nitride paste
High temperature resistance of 100% cotton, impregnated with Wurtzenite™ Boron Nitride paste
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Graphite electrode, coated with Wurtzenite™ Boron Nitride paste and placed in oven(1/3 of length) under temperature of 1000 °C for 8 hours. Area, coated with 2 mm thick layer is better protected than 1 mm thick area. Exposed area (in green oval) is almost burnt, area except coated with paste.
Shipping:
Ukrainian post (ukrposhta.ua), registered mail with tracking number; delivery time to US, Europe - 2-4 weeks.
Tracking will be available on your local post's website when order arrives to your country; it is advisable to track on specialized sites like trackitonline, etc.
All orders do arrive if address is correct, but delivery time of some parcels may be delayed up to 2 months because of logistics or customs issues. Please contact me first before opening case.
International Buyers – Please Note:
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
Grain conversion chart
Catalog of diamond and CBN tools
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