Product Description
Udder Butter Syringe 40ml
Some greases chase a reputation. This one already has one.
If you've spent time in this hobby, there's a good chance you've heard of Udder Butter, long before you ever saw the name on our site. One of the go-to greases across the hobby, not because it does one thing perfectly. That's because it does almost everything better than most of the specialty greases built for just one job, across a genuinely wide range of RC applications rather than one narrow niche.
It's not a do-it-all grease and we won't pretend otherwise. What it is, is a do-most, and it does most of those jobs better. It handles gears, axles, transmissions, bearings, shock linkages, gaskets, seals, O-rings, swing arm pivots, portals, differentials, and much more. There are a couple of places we'd point you elsewhere: genuinely massive vehicles in the eighty pound and up range, closer to small ATVs than RC, and inside a tenth-scale ball differential specifically, where the pressures involved can be more extreme than what this grease is built for. Outside of those situations, it's hard to find a spot in the hobby where Udder Butter doesn't belong.
A quick but important distinction: waterproof grease doesn't mean it waterproofs things, it means the grease itself is waterproof. It won't mix with, break down, or wash away in water, so it keeps doing its job even in wet or fully submerged conditions, including saltwater.
This isn't a product we threw together and left alone. Udder Butter is now on its fourth formula, refined over roughly a decade and a half of real use across the hobby. Each new version sharpening what already worked rather than starting over.
Udder Butter comes in three sizes, and which one you reach for depends on how you work. The 2lb tub and 8oz container are the better tool for the fill-and-wipe technique, since scooping generously and removing the excess is easy whether you use a finger or a glove. The 40ml syringe trades that flexibility for pure convenience, dispensing precisely where you want it with no scooping at all. Though once it's out, it's not going back in so easily, so it suits smaller, more targeted jobs better than a full fill-and-wipe process.
And yeah, we made it the color of actual butter.
Some tips from the team:
- Old habits die hard here. Piling on grease, packing housings tight, leaning on extra volume for extra protection, or counting on excess grease to settle and reapply itself is a perfectly reasonable instinct with most greases, but Udder Butter plays by different rules, and holding onto that old instinct means never actually seeing what makes it different.
- On gears, the goal isn't a coating, it's a fill. Wipe it directly over the teeth to pack them, then take a second pass wiping away the excess, until the gear looks like it never had teeth machined into it at all.
- Anywhere else on the part where you're just after rust and corrosion protection rather than a friction point, the metal only needs to glisten, no visible buildup required. Udder Butter is remarkably tacky and adhesive, but it won't cling to itself, so that thin layer is the ideal application, by design.
Features:
- Does most jobs in the hobby better than the specialty grease built for just that one job
- Safe for all rubbers, plastics, and materials common in RC, won't swell O-rings or degrade plastics the way many automotive/marine greases can
- Excellent for gasket seals and O-ring lubrication, staying consistent without altering O-ring behavior
- The grease itself is fully waterproof, won't mix with, break down, or wash away in water, including saltwater
- Significantly lower cost per ounce than typical greases in the industry, and used so sparingly that the real cost per application drops even further
- Now in its fourth formula, refined over roughly a decade and a half of real-world use
- Available in three sizes: 2lb tub, 8oz container, and 40ml syringe
Ideal Applications:
- Gears, axles, transmissions, bearings
- Shock linkages, gaskets, seals, O-rings
- Swing arm pivots, portals, differentials, and much more
- Not recommended for vehicles in the eighty pound and up range, closer to small ATVs than RC, or inside a tenth-scale ball differential specifically, where pressures can exceed what this grease is built for
Product Videos
Videos Hide Videos Show Videos
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Let's take a DEEP DIVE into the CowRC Lubricants!
Welcome to CowRC University! Our goal is to provide you an in ...
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Choosing the proper lubricant
This video serves as a comprehensive guide to selecting the ri...
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The Proof Is In The Butter! Udder Butter Super Waterproof Grease!
Edited & Produced By CowRC Factory Team Driver Zack Cater
Custom Field
Product Reviews
25 Reviews Hide Reviews Show Reviews
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Excellent, recommended
This Udder Butter is the best all around grease I've ever used in my 16 years of rc experience. After using it, I'm convinced I'll never use any other brand.
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Awesome stuff. A little dab'll do ya!
Best stuff ive found. Period
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Udder butter
Great product, is it to grease up my gears in the transmissions. I also use it to grease up components in my 3d printer.
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Udder butter
Easy to apply and conveniently mess free!
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Udder butter
I have friends who say this is an excellent product and that it's all they use now for their RC differentials. I haven't used it long enough to rate its performance, but the application method is fantastic.
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better than this..dont think so
This is just the type of chemical I will never get enough of. I totally recommend it.
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Utter Butter lubricant
I first saw an add for this so I read about it and ordered one syringe. I replaced the 100,000 lube that always leaks out with the utter butter and I LOVE it !!?. With the syringe it’s easy to apply. I recently picked up a very well used XMAXX and replaced the frozen bearings and repacked the useable ones,also did my ERevo bearings, again this stuff is fantastic. I now have four empty syringes and wish the company had a refill method for them like a plastic pack like the bakers use to frost cakes and cookies you could just squeeze it into the empty syringes. This stuff is so slippery it’s hard to wash off so that’s why I use the syringes.
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Udder butter
This product is exactly as advertised pretty pleased
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better than this..dont think so
this is the perfect grease for your RC cars that you will try