Plastic Repellent Paint

Works as advertised. I've used this on the nozzels on my 3D printers for the past several months, and the print quality has definitely increased. There is now almost no stringing between the various model pieces on the build plate. There is no deviation in the filament as it extrudes. I wish I'd known of this years ago.

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.

An absolute must-have if you own a 3D printer and your nozzles aren't pre-coated. I own a Bambu printer, and none of their nozzles are coated for prevention of globing on the nozzle. I was having recurring print issues related to filament and stringing sticking to the nozzle, and then eventually depositing itself somewhere in my print. The VERY FIRST PRINT after applying this coating, I had substantially improved outer walls and ZERO filament on the nozzle. In the end, this will improve your print quality if you're currently having glob issues (and have troubleshot everything else), and at the very least, it will make your life easier in keeping the nozzle clean.

great item, helped with filament sticking to the nozzle and curling as its being extruded leading to cleaner first layers and less stringing.

Must have for petg print. I use it for my P1S, the original hotend always has petg stick on the nozzle. But after I apply this repellent on the nozzle no more filament stick on nozzle. Definitely good buy.