Best Electrical Greases of 2026

"I've used this product to revive several of my Dewalt tools, mainly focusing on slide switches in electronics. It cleans out old grease and dirt easily, and a little bit goes a long way. The brush applicator is super handy, and I've found it to be a great value overall. I'll definitely keep buying it because it just keeps working!"

"As someone who works with automotive connections in the Midwest, I rely on dielectric grease for preventing corrosion. This silicone-based formula works perfectly on battery terminals and other 12-volt connections, and I've never had any issues with it. It's an excellent insulator and doesn't leave carbon residue behind."

"For the price, this grease is a solid deal. It's a medium-grade product that's ideal for everyday tasks, especially in older light sockets. While it's not as thick as some other types, it gets the job done for most basic applications."

"I’ve noticed that this gel beats spray products for battery protection—it lets me apply the exact amount where it’s needed and it really sticks to the posts, lasting much longer than the sprays ever did."

"What stands out to me is the value and quality for corrosion prevention. It’s a better deal than what I found at the dealership, and the product itself is top-notch for keeping battery terminals clean."

"I like how there’s no waste or mess like with sprays. You get all product, no propellant, and no clogged nozzles. It’s easy to apply, and after a year, it’s still keeping corrosion away from my battery terminals."

"I used this on my car's fuse box where moisture usually causes issues. No more moisture, no shorts, problem solved! I'm glad I discovered it and it's definitely saving me money."

"I picked up this grease for my boat trailer harness. The tube is smaller than expected, but it applies smoothly and keeps the connections free from corrosion, especially since I launch in saltwater and deal with heavy rain. It's become essential for my setup."

"I've tried other brands but this stuff stands out. It's a high-quality dielectric grease, not runny or messy like cheaper alternatives. Plus, I like supporting a Veteran-owned business."

"I installed this on my generator’s battery, paired with a trickle charger and heat pad, and was amazed that it lasted almost six years—that’s phenomenal for modern batteries. A single can lasts a long time, so it’s a great value."

"After trying out this brand instead of CRC, I noticed it’s thicker and more effective, with a nice oily texture. I’m impressed it’s made in the USA and has such a long-standing reputation, apparently dating back to 1914."

"I used to deal with terminal corrosion every six months, but after cleaning and spraying this on my F150, one application protected my battery for three years before any acid build-up appeared. This stuff really prevents that blue gunk from forming."

"After years of frustration with leaking tubes, I finally found a dielectric grease container that doesn’t leak. Application is simple and mess-free, and though it’s not as pinpoint precise as older tube designs, it gets the job done. I use it for everything from battery terminals to outdoor bulb sockets, and the price was much better than my local auto store."

"Dealing with winter road salt and moisture is tough on my snowplow connections, but this grease has made a huge difference. It protects my cables from corrosion and extends their life, saving me money on replacements. Works just as it should."

"My truck’s battery terminals were always getting coated in powdery acid, and it started causing startup problems. After applying this grease, the acid buildup stopped and my truck fires up without issues. It’s easy to use—just wipe it on—and I highly recommend it for keeping electrical contacts clean and reliable."

"As someone who works with electrical connections daily, I'm thoroughly impressed with this dielectric grease. The power dispenser makes it so easy to apply without any mess, and the product itself is incredibly reliable for preventing issues. I’d definitely call this a must-have for anyone who needs a solid electrical solution."

"This was exactly the product I needed. It works great and meets my expectations—I'm glad I decided to try it. Thanks for a quality product!"

"Honestly, this grease is the superhero of non-conductive protection—it handles corrosion and moisture like a champ. I’ve used it on spark plug boots, trailer wiring, and even battery terminals, and everything is working smoother than ever. Once you start using it, you’ll want to grease everything. Highly recommended!"

"I've used this dielectric grease for years on everything from off-road vehicles to RC cars and spark plugs, and it consistently delivers. It stays put even after a year, prevents electrical issues, and works great in muddy, wet conditions. The only minor gripe is the brush could be better, but that's hardly an issue. I'll definitely buy another bottle, even with the price hike—it's still worth every penny!"

"This grease is my go-to for waterproofing and preventing corrosion. I've applied it to my car, boat, and household electrical connections, and it always performs reliably. The squeeze tube makes application easy, and I consider it essential for any DIYer or maintenance pro. Moisture-resistant and versatile—highly recommended!"

"I love how thick and effective this paste is. I use it for battery terminals and fridge door seals, and it really makes a difference. My 15-year-old fridge doors open and close like new after applying it. The brush can get a little bent, but it still does the job. Great product for multiple uses!"

"I've used this dielectric grease on my car battery terminals, spark plug boots, and other connectors, and it creates a solid barrier against moisture and dirt while keeping everything running reliably. The thick texture spreads easily and the tube design makes application hassle-free. I highly recommend this for long-term protection of electrical connections."

"When I changed the spark plugs on my car, this product made the job much smoother. After thousands of miles, the plugs are still in great shape. It's a solid choice for anyone looking to do their own maintenance."

"This stuff is super easy to use, especially when you don’t have a grease gun. It’s a good size for the price and definitely works as promised, helping prevent rust and keeping everything moving smoothly. I’ll buy it again when I run out."

"I found the included brush extremely helpful for precise and mess-free application, and the product did a great job on my automotive electrical issues. The affordable price compared to a new wiring harness was a huge bonus."

"This silicone dielectric grease has become my go-to for automotive and marine maintenance. I really appreciate the easy-to-use brush, and the waterproofing and heat-resistant qualities are exactly what I need for spark plugs and connectors. The compact size is perfect for my toolbox."

"Application was straightforward with the pointed tip and brush, and the reusable packaging makes it much less wasteful than single-use packets. The reasonable price and convenience stand out, though I’ll have to see over time how well it protects."

"I've spent a lot of time working around saltwater, and I wouldn’t trust my electrical connections without this grease. It seals and protects against corrosion and moisture extremely well. I find the compound spreads smoothly and stays put without being messy. The dispenser is very user-friendly, letting me apply just the right amount. This is a reliable product I use every time."

"When I pack motors and connectors for my homemade ROV, this dielectric grease has never let me down. No shorts or damage, even underwater. The application is straightforward, and while the lowest setting dispenses a bit more than I need, I just use a small container and an applicator to control it. Cleanup is simple—a little cleaner and a paper towel does the trick. CRC’s quality always meets my expectations."

"Despite the recent price increase, this is still my go-to dielectric grease, especially for marine applications. It stands up to heat and water where other greases fail. I use it on all my motorcycle connectors, even those fully exposed to the elements, and I’ve never had trouble with moisture or corrosion. It’s a set-and-forget solution for anyone serious about electrical protection outdoors."