Boron Nitride Paste (5 cc) by Slice Engineering | Improve Conductive Heat Transfer | Maintain Stable Temperatures | 3D Printing | Thermowells | RTD Sensors | Thermistors | Thermocouples | Heaters

I don't like that when I need thermal paste for my Bambu nozzles, I need to to buy a bare nozzle. I have many X1C nozzles for spare parts I figured out how to refurbish with the help of a lighter and tweezers. All of these nozzles needed new thermal paste, especially stuff that doesn't dry out. I decided to try this stuff. This paste is actually more efficient and reliable that Bambu's paste for their nozzles! I have had so fewer print problems by the nozzle temp being in consistent. Also, the Bambu stuff turns to powder and is super thin. Not this stuff. I can goop up the nozzle to my heart's content for full coverage under the heating element. Something great to note, when this stuff heats up, it almost glues the element to the nozzle for a full complete seal and contact to the nozzle! :D This stuff is great and well worth the price. My only gripe is that I wish that it came in a tub rather in a syringe because the stuff will explode out the end on your first try with a new one, and then when you take the ejected paste and put it back in the syringe, you have to make sure the pusher seats without it exploding again in that sitting. When you open up a used tube to get the paste out, it always comes out super fast and every time I have done this, too much comes out and I have to put it back in, what I can save.

It is easy to apply and it goes a long way, I use it to install any nozzle on my machines. It also easily cleans up with water and is inert so getting it on your hands is perfectly safe. It really does improve heat transfer just like thermal paste on a cpu is needed for the heatsink to work, but heatsink thermal grease cannot handle the higher Temps in a 3d printer nozzle. I have noticed a bump in extrusion rate on every machine I have used this on.

I used this to coat the heater cartridges and K type sensor for a hot plate project. I coated four cartridges (1.57"x.31" each) and the thermocouple using just a little more than 2cc. I let it dry at room temperature overnight, then carefully heated the hot plate up to 90 degrees C. I noticed a small amount of what looked like water vapor briefly coming from the ends of the cartridges. After ten minutes, I gradually ramped the hot plate up to 360 degrees C, with no problems at all.

*** Slice Engineering states (on their website) that the paste needs to dry out. You can either, let it sit overnight or run the hotend at 90c for 10 minutes. This is because the paste contains water: to aid in squeezing it out of the syringe and spreading it effectively. If you don't let the water evaporate/dry from the paste, you can experience the ~bubbling that others complain about: this is the water boiling away at high temps and pushing the paste out of place. *** **Be cautious: the paste can push out of the tube with excess (upon first use, after it has sat for a long period). I would suggest trying to pull the syringe back a bit: before pushing forward. ** Overall the performance of this Boron Nitride paste is exceptional compared to other general use thermal pastes, for 3D printing. I've got a P1S, running a V2 Aftermarket hotend w/ .4 CHT Bondtech Nozzle: getting ~30mm^3/sec. This paste really helps when you need to dissipate heat between the "cold-end"/Thermal tube: of the hot-end assembly, and the heat-sink; I also put a small amount on the threads of the nozzle. { Use caution to try to not let much of the paste get into the filament path. I didn't run into issues, even having done so. You can always use water to clean off excess paste: Iso worked well for me too. } I did run into temporary issues: getting thermal malfunction errors, because I didn't realize the paste needs to dry. ( It's also likely I didn't apply enough paste into the thermister hole nor push the bulb into the hole far enough: to get good/consistent readings.) Once you are aware of these several, obscure aspects of how to use the paste: properly, things work out great. Well worth the money, for what you get. I would recommend it for anyone seeking to improve their 3D printing experience.

Slice Engineering was in the box of suggested items purchased by other customers, I was getting a heater block and thermistor. Seemed like the thing to do. This paste not only conducts heat, it turns in to cement almost after allowing it to dry overnight. The quality is outstanding and noticeable improvement in heating up and staying hot helps consistently improve print quality and efficiency. Definitely going to checkout Slice’s other products.

No way of knowing if this paste made a difference. I bought the heat break with the paste and applied it on the original install. However, I'm getting incredible results! If you bought a heat break and didn't see a big improvement I'd definitely suggest trying this paste. I did the 90c quick drying process described on the web site. No issues. The only negative is this stuff is messy. I was being careful, but it got everywhere. It's not difficult to clean up, but it's impossible to apply it without getting all over.

So after changing my heat break and nozzle I found out that I was getting a lot of stringing and there was excess filament coming out of the silicon boots so if you have ever experienced this after changing your nozzle or upgrading to a heat break, then you need to apply this stuff. I put this paste around the heat break threads, screwed it into the heat block, then put some on the nozzle threads and screwed it down tight. I let it set overnight or 24 hours. Put it back in and it works like charm no excess filament no. Stringing no excess globbing coming out of the threads. I use this on an ender 3S1. Don't forget to put it on your heater and your thermostat sensor. Great product!.

Absolutely what I was looking for, needed thermal paste for my 3d printer hot end.

Received very fast, excellent product for 3D printer hotend heater and thermistor cartridge

I use it for 3d printing nozzle heaters. It's really easy to clean off and sets nice. Careful to not get it on your build plate as the mohs hardness of boron is 9.3 it will scratch nearly any buildplate.

I was having a lot of clogging with my printer, when I disassembled the hot end, I noticed that there were some gaps in the heat sink, so, afer applying the paste and reassembling it all, the temperatures now are a lot more consistent and I'm not having clogs anymore..

excellent for the nozzle on my bambu A1