



🛠️ Keep your ride smooth & sealed with 3M’s silicone paste — the pro’s secret weapon!
3M Silicone Paste 08946 is a premium, 100% silicone lubricant designed for superior protection of rubber and plastic vehicle parts. Its heat, moisture, and chemical resistance ensure long-term performance in harsh conditions, while the odorless, non-toxic formula makes it safe for indoor and close-contact applications. Featuring a uniquely bent brush for precise, waste-free application, this clear silicone paste is a must-have for professionals and DIY enthusiasts seeking reliable, invisible protection.




| ASIN | B005RNEH5O |
| Best Sellers Rank | #1,326,837 in Automotive ( See Top 100 in Automotive ) #121 in Silicone Sealers #10,968 in Oils & Fluids |
| Brand | 3M |
| Color | Clear |
| Customer Reviews | 4.8 4.8 out of 5 stars (5,446) |
| Date First Available | July 7, 2004 |
| Global Trade Identification Number | 00051135089460, 00799621067843 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.6 ounces |
| Item model number | 08946 |
| Manufacturer | 3M |
| Manufacturer Part Number | 08946 |
| Material | Silicone |
| Model | 08946 |
| OEM Part Number | 08946 |
| Power Source | Manual |
| Product Dimensions | 3.7 x 2.74 x 2.34 inches |
| Special Features | Heat Resistant, Moisture Resistant, Chemical Resistant, Quick Drying |
| UPC | 799621067843 051135089460 051135090688 752913182495 |
O**E
Great Goop!
I still use my last metal jar that I bought in the late 80's (I just used a screwdriver to get the last 10% off the sides and move it to where the brush can reach). This new bottle is just a replacement. I use it mainly for electrical situations where waterproofing is critical (Motocross spark plugs, golf cart plugs, ATV plugs) as it lubricates and makes the spark plug connectors waterproof. All of my backpack sprayers, hand held sprayers and anything with a rubber O'ring gets slathered. My swimming pool fittings, all O'rings, valves, and it's a must-have around the cars and trucks as it is truly awesome. Try it on any rubber seals and you'll see what I mean. Lot's of uses for a DIY'er and I find it indispensable. Get some and throw it in your tool box and 30 years later you'll be glad you did! Pro's: Too many to list Con's: 1.The brush is too short and you can't ever finish it off without using something longer to get to the goop. 2. Cost - it's expensive and always has been, but it does last forever
J**J
Yes, You Get What You Pay For
This is a long lasting, odorless, chemically inert, temperature stable, high quality lubricant made by 3M. The bottle features a brush that was designed by thoughtful people who intentionally bent it so the brush could reach the corners of the jar. If the brush were straight, it wouldn't be able to fish all of the grease out of the jar. All greases that I have ever purchased from 3M, permatex, and CRC include a bent brush. I would be concerned if the brush were not bent and take that as a queue that the product might not be authentic. I included four photos of the 3M silicone paste and and a photo of an old jar of 100% silicone grease from a scientific supplier. Side by side, they both look, smell, and feel exactly the same. One of the benefits of silicone grease compared to other grease products is that silicone grease does not off-gas smelly fumes the way other petroleum distillate greases typically do. For example, I often use Lucas X-Tra heavy duty grease, which is very smelly, to lubricate bushings and automotive connections. Lucas products smell but since it's used under the car, it's not big deal. If someone were lubricating something that people have close contact with, or something inside of the home, they should use an odorless grease. I personally use silicone grease on all braking components because I have had issues with inferior greases that vaporize and leave me with squeaky brakes.
D**.
Top-Notch
Works like a charm. Will buy again.
T**H
Great stuff but look out for low fill in container
This paste is fantastic and useful for just about anything. I have used it on brake hardware, conditioned automotive door gaskets, storm door lock mechanisms, and dielectric grease for battery terminals. Just be aware that if when you open the bottle it looks like "there should be more", you arent wrong. My mother just bought me some more as a gift and the new one is full to the brim. When I bought my first one i felt like it seemed a bit low but I wasnt sure so I didnt think anything of it. I must have gotten a low weight one from the factory or someone used it and returned it. Either way too late to do something about it now. Great stuff.
A**X
Excellent product
I bought this to do a few brake jobs over the weekend and after reading several reviews i decided on this product over the synthetic ones based on the reviews. I was not disappointed to say the least. The silicone itself is fantastic. Its thick enough to comfort you into knowing it will stay on without too much of a mess while holding up to water and weather. I kept knocking over the bottle and none of it spilled once, which is great since its a paste and nothing should really be leaking out. Although it is a thick substance pushing the brakes between braces by hand was very easy. The reason i didn't give it 5 stars is because the cap has a brush attached to it which is what i expected. But since the paste is so thick (at least i don't think it was done on purpose) the brush came bent at the center. So the brush had some sore of V-shape to it. for the most part it was still easy to use except when it came to greasing the caliper piston and the rubber seal around it. It made it near impossible to do so without another set of hands. If this isn't done intentionally i would assume most come this way because the paste is so firm when i would purposely replace the brush into the bottle it can feel the brush giving way first and not the paste. a firmer stick to the brush would do the trick. This wasn't that big of a deal i struggled between 4 or 5 stars and i imagine most people won't mind this at all. Pros: cost, quality Cons: brush
A**N
This is good stuff.
I never heard of silicone paste until 2 months ago. Oh sure I have been aware of silicone spray for years and have used it. However silicone paste is great for automotive purposes, particularly window regulator and window channel problems. I have a rear side window on my Dodge Dakota 4 door truck that would "jump" as it went down, going up was fine. I tried silicone spray many times to get it to move smoothly on the way down to no avail, plus there is not a lot of adjustment to these window regulators. Going up was fine. Then I saw a video on YouTube by Eric the Car Guy and he used silicone paste on a window channel install. He said silicone paste was good stuff for installing window channels and can solve a whole host of car window problems. I used the paste on my Dakota rear side window and the problem was solved. Soon after that I had to install a new window regulator in a Honda Accord and I put some silicone paste in the window channels and I think on some regulator parts. Anyway it worked good too and still does. It doesn't take a lot of paste to get good results so don't slop it on like you are making a peanut butter & jelly sandwich. Just use common sense when applying it.
C**M
Excelente para aislar tomar electricas donde haya humedad o mucho polvo, como en areas exteriores a intemperie. Tambien lo uso para lubricar engranes y sistemas de movimiento donde se necesita estabilidad del engrasante. Sirve para sellar roscas y ciertas conexiones. En general es muy bueno en diversos usos ademas del indicado en el envase.
V**V
If you work on your car's cars brakes and need to lube the caliper pins this is the product to get. It wont harm rubber parts in your car's braking system. Plus this grease has myriad other uses around the house.
A**R
This is a must for if you are doing a brake job on a car. It is a bit expensive but should last a long time so the value is worth it.
D**Y
Quite pricey here in Canada but works well and there is no substitute product I could replace it with.
L**I
Even in Summer it's good for the wheels, keeps them lubricated and nice, makes tire changing a breeze.
Trustpilot
2 days ago
2 weeks ago