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🛠️ Seal it like a pro — clear, tough, and built to last!
3M Marine Grade Silicone Sealant is a high-quality, clear silicone designed specifically for above-waterline sealing on boats, RVs, and more. It offers superior adhesion to a wide range of materials, resists yellowing and sagging, and cures with moisture to form a flexible, durable, water-resistant seal that endures harsh marine conditions.







| Asin | B000H83M4G |
| Best Sellers Rank | #4,503 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #13 in Silicone Adhesives |
| Brand Name | 3M |
| Color | Clear |
| Compatible Material | Glass, Metal, Plastic, Wood |
| Customer Reviews | 4.7 4.7 out of 5 stars (401) 4.7 out of 5 stars |
| Global Trade Identification Number | 00051135080290 |
| Included Components | PN08029 |
| Item Dimensions | 2 x 2 x 12 inches |
| Item Form | Liquid |
| Item Type Name | Marine Grade Silicone Sealant (08029) – For Boats and RVs - Clear – 1/10 Gallon Cartridge |
| Item Weight | 8 ounces |
| Manufacturer | 3M |
| Material Type | Specialized silicone or synthetic rubber compound |
| Model | 08029 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Part Number | 051135080290 |
| Style Name | 10.3 fl oz |
| Surface Recommendation | Floors,Walls,Wood |
| Unit Count | 1 Count |
| Upc | 051135080290 |
| Water Resistance Level | Water Resistant |
User
Great product! Works great! Highly recommend!
Great product! Works great! Highly recommend!
User
Great product!
Great product!
User
Fixed car leak
We used this sealant to seal some cracks in our Honda that were causing water leaks. This product was easy to apply and sealed the cracked that was causing the water leak. I would recommend this sealant as a cheap and easy solution for water leaks in cars.
User
3M marine grade silicone
Great stuff for my boat on installing new equipment
User
Good stuff
Worked good for gluing on a dash cover
User
Expensive but worth it
We bought a new boat and my husband put the motor on. This is what he used to make sure all the holes from mounting the motor were sealed. We have had our boat out a lot and this product has stood up to all the water with no problems
User
Put a van camper top on my van
This is one of the best tubed I've used. Keeps the water out. Keeps the moisture out. Doesn't expand too much. Goes with the hot weather and the cold weather. Very easy to work with. Smells at first. But when you get done your job looks awesome. Doesn't peel the way like the other ones do. I ended up buying 8 more. To put my camper van top on. And it's still going strong. I recommend this to anyone. Easy cleanup.
User
It will bond and it’s done
High cost, once it’s opened it should be able to reuse. 3 M is I very good product (s). Over $30. Now
User
Excelente calidad
Excelente calidad, selló las filtraciones en mis ventanas e incluso la usé para sellar filtraciones en el techo de mi camper, muy recomendado
Trustpilot
2 weeks ago
1 month ago