Slice EngineeringPlastic Repellent Paint Repels Plastic & Prevents Buildup on the Nozzle | Get Enhanced Print Quality | Hassle-Free Application | Water-Based PTFE Nanosuspension (3 mL - 1 Pack)

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.

Are you frustrated with your printer? Are you about to take it into a parking lot and go straight office space on it?Hi, I'm Chase and I was about to hammer my Ender 3 into the ground with a baseball bat after a solid two weeks of trying and trying to successfully print anything other than PLA. Lol. There are a couple things I credit with taking my print game to the next level, and this is definitely one of them. In my humble opinion if you were to purchase this plastic repellant paint, a PEI build plate, and add the Bed Level Mesh plugin to Octoprint, you'll very likely end up only having a failed print once or twice a month. At least, thats my experience, and those couple failed prints only happen because the paint gets heated away during print after print and they start to fail again before you realize its sticking to the nozzle again and reapply paint. Trust me, its money well spent, and at an acceptable price too. A bottle should last you quite a while, despite being rather small. Its about the size of a finger nail polish container, but when youre just dabbing some on the tip of a nozzle once every month or so, it really has some long legs.I wish I could add pictures to show examples of how well this stuff works in practice, I feel like it always helps to see what you're buying and what it does before you purchase it for the first time. But alas, its kind of difficult to just post a picture of a big blob of filament and 25 consecutive failed prints, compared to the inverse occurrences you get when adding this plastic repellant paint to the mix. If you print in PETG or ABS, anything other than PLA that seems to really like to "booger" and tends to ruin prints as a result, this the the product for you! I have added what photos I could to help exhibit the apparent crystalline form the paint takes upon drying. This can be seen as the white almostg powdery looking substance coating the tip of my replacement nozzle. This visible coat of tiny crystals may disappear after a couple prints, but rest assured the paint is still active. As I said, you'll definitely know when its time to recoat the nozzle tip because your prints will start to fail again. Mine did at least. And as soon as I added a new coat, I got back to printing!I'll definitely be buying more in the future. This is definitely one of those quality of life products that just improve the 3D printing experience. Especially for those relatively new to the hobby and having trouble getting those more "exotic" filaments dialed iin. If you regularly print PETG or ABS type materials, you will not regret buying this product. I promise!Live long and prosper 🖖

So I own a flashforge and run mine through a spool of 1KG almost every other day. I was replacing the nozzle kit almost monthly, sometimes every two weeks. Cause when the nozzle for flashforge gets gunked, the whole thing gets gunked.This has made it so I not only never have to deal with small clogs, but I’m going on the same nozzle for two months now! My prints have been flawless and I’m no longer worried about filament ending up in wrong places or a print stopping halfway. It’s made a huge difference! Best purchase I’ve made for my printers maintenance so far. And I’ve been doing 3D printing for 6 years now.