Slice Engineering Plastic Repellent Paint Repels Plastic & Prevents Buildup on the Nozzle | Get Enhanced Print Quality | Hassle-Free Application | Water-Based PTFE Nanosuspension (3 mL – 1 Pack)
$14.99
Got a sticky nozzle? Sick of plastic sticking to it all the time? Plastic Repellent Paint by Slice Engineering is the solution for you! Plastic Repellent Paint is a revolutionary, water-based, PTFE nanosuspension that repels plastic from the outside of your nozzle and hot block. Which is awesome, because it prevents that annoying plastic buildup that causes print failures! Plastic Repellent Paint can be applied in seconds using the vial’s brush top, forming a dry, transparent coating that endures print temperatures up to 290°C. Keep your nozzle clean with some high-tech space magic, and worry no more.
Water-based PTFE nanosuspension
Repels plastic from the outside of your nozzle and hot block
Applies quickly and uniformly with the vial’s brush top
Bonds with clean metal surfaces upon first heating to form a dry, transparent coating
Endures printing temperatures up to 290°C
Edgar –
Excellent Upgrade for Cleaner, Smoother Prints – Worth Every Drop
I was skeptical at first—3 mL didn’t sound like much for the price—but after using Slice Engineering’s Plastic Repellent Paint, I’m convinced this little bottle punches far above its weight. If you’re tired of cleaning off burnt filament crust from your hotend or suffering from inconsistent extrusion due to buildup, this product is a game-changer.Pros:Actually Works: Once applied to the nozzle, filament just slides off like it’s scared to stick. Even when printing with notoriously sticky materials like PETG, there’s significantly less gunk buildup.Easy Application: It comes with a precision brush built into the cap, so applying it to the nozzle is simple and mess-free—just don’t overdo it. A little goes a long way.Improves Print Quality: Cleaner nozzles mean more consistent extrusion. After applying this, I saw cleaner layer lines and fewer blobs on prints.Long-Lasting: Even though it’s only 3 mL, I’ve done multiple nozzles and still have plenty left. You’re not meant to slather it on—just a light coat does the trick.Safe and Water-Based: Unlike some mystery coatings out there, this one’s water-based and PTFE-based, which gives some peace of mind when using it near heating elements.Cons:Price per mL: It’s not cheap, especially for such a tiny container. But considering how long it lasts and how much trouble it saves, I’d say it balances out.Needs Reapplication: Depending on your printing frequency and materials, you might need to reapply every few days or weeks to maintain the effect.Don’t Get It on the Heater Block Threads: It’s easy to be a bit sloppy at first. I recommend removing the nozzle for a clean coat or being really precise.Final Thoughts:If you 3D print often—especially with high-temp or sticky filaments—this paint is a fantastic quality-of-life upgrade. It helps reduce maintenance, improves print reliability, and keeps your hotend looking brand new. I’d recommend it to hobbyists and pros alike.
Kbo –
It saved me a few nozzles. Works great if you follow instructions.
This has genuinely paid for itself in saving 2 (silicon carbide) nozzles from the blob of death. I thought I was cooked when I saw it bulging out from under the hot end cover but it didn’t stick to the nozzle. It just fell off when the printer returned to the home position after cancelling.It’s some a magic, bug spray for plastic. Things can still melt around the hot end but this will stop them sticking. Most situations it falls off during movement. You’re going to need to reapply depending on how often you print and circumstances. After my save from the blob of death, I definitely reapplied. I have 3 printers that I typically run 4-10hrs a day and find I need to reapply every few days. I have no idea if it’s a time or temperature/use situation.It seems to work like an advanced layer/mold release. Given it works on really hot metal I’m guessing a boron Nitride solution which after evaporating, leaves a release coating on the metal.It’s a small bottle with a nail polish like applicator brush and dead simple to apply. It takes very little to cover the exposed parts of a nozzle. You need to apply prior to heating up the hot end or it evaporated but with so little needed it’s dry by the time I’m done and back to my computer, start the print and the hot end is at business temperature.Ymmv on how good you are with keeping up with the application.
David Cobb –
Works well
This stuff keeps the outside of my printer’s nozzle completely clean as long as I am printing ABS or PLA on a single extruder printer, which is 99% of the time. So I will still give it 5 stars even though it didn’t fix the problem that I was having, or at least not by itself.My original reason for seeking out this product was doing a dual print with PETG and USM (water soluble). The wipe process between layers on the PETG extruder kept kicking up a short piece of PETG on the outside of the nozzle that would build up to a blob and drop into the print after 20 layers or so. This paint isn’t anti-stick enough to make that stop, but it did make pulling the blob off with tweezers A LOT easier. So points for that, and it is a 100% solution for most “normal” prints.Also the bottle came sealed really well, so whatever problem other reviewers have had with leaks during shipping appears to have been corrected.
Just Some Guy –
Mixed results
I didn’t have any packaging problems like some people. My bottle arrived if perfect condition. The bottle is glass now, I don’t know if that has changed. Anyway, I have mixed results with this, especially when using with PETG. After applying liberally I can say it sometimes at least delays the accumulation of PETG on my nozzle, but the plastic death boogers will still inevitably form on the nozzle. I think it may help more to just increase the retraction distance over the stock profile. And this might just be an issue with PETG. With PLA it does seem to actively repel the hot plastic. I can’t speak for ABS or any other filament type yet. I will also say it seems to wear off pretty quickly. You can tell when the nozzle is sufficiently coated because when it dries the painted area has a slight powdery layer over it. When that wears off it’s time to re-apply. And in some cases this may mean painting it on after every print. Your mileage may vary. It seems like this tiny bottle will last a while though so I’ll keep trying it out. Another thing to consider is this IS teflon, which is technically not something you want to handle or use with anything that contacts food surfaces, so that’s something to consider here. That means it likely contains PFAS, PFOS or other fluoridated compounds. So that’s just something to keep in mind. But it might be a non-issue for you. It does not seem to give off any fumes or anything though, at least not that I’ve noticed. That may be because it’s water based. Anyway, this product seems to work in some conditions but it’s usefulness is probably limited with PETG and will vary depending on your use. Still, I think it’s worth trying out to see if it suits you.
Steve Pudsey –
great item, helped with filament sticking to the nozzle and curling as its being extruded leading to cleaner first layers and less stringing.
Balwan –
Many past complains about a flimsy bottle – this seems to be corrected. the bottle is heavy wall, rigid plastic, well sealed.
howardboxall –
works great
Adrian –
I’m not sure what I’m doing wrong but I’ve got diamondbacks on my printer, every time when I apply a thin layer, on a clean nozzle it tends to somewhat stick and a portion of it kinda flakes off. I tried doing a second coat, it kinda sticks better? It seems to kinda do the job but I don’t seem to be satsified with the result. Also quite expensive for so little.
Domenico –
Honestly I probably wouldn’t buy this stuff again; I really saw no noticeable difference when using this VS when the nozzle didn’t have this applied. I followed all the instructions and I would say things performed exactly the same as prior to applying. I tried multiple times and ensure I followed all the instructions but I really can’t say there was any sort of performance improvement, nor was there any less filament sticking to my nozzle.