Seam sealers are an important part of automotive maintenance and repair. When it comes to selecting the best automotive seam sealer, there are a few aspects that should be taken into consideration. This includes the type of material that needs to be sealed, the environment it will be used in, and the budget available. Understanding the features and benefits of the various types of seam sealers can help ensure you choose the one that will best meet your needs.
Best Automotive Seam Sealers
| Rank | Product Name | Score |
|---|---|---|
|
1
 |
Permatex 81173
|
9. 7
|
|
2
 |
3M Dynatron 550
|
9. 5
|
|
3
 |
Evercoat 365
|
9. 1
|
|
4
 |
Transtar 4167
|
8. 8
|
|
5
 |
SEM 29392
|
8. 6
|
|
6
 |
J-B Weld 31919
|
8. 2
|
|
7
 |
3M Flexiclear
|
8. 0
|
|
8
 |
Eastwood 51655
|
7 .7
|
1. Permatex 81173
I recently purchased Permatex 81173, and I am quite impressed with the product! It is a sealant and gasket maker formulated for automobiles and works well with a variety of surfaces including metal, aluminum, and plastic. I have been using it for a few weeks now, and it has been great for sealing leaks and cracks. It also offers excellent adhesion, creating a strong seal that lasts. I have had no issues with it so far and would highly recommend it to anyone in need of a reliable sealant.
- Resists gasoline, oil, grease, and antifreeze
- Superior high-temperature performance and extended service life
- Excellent adhesion, anti-corrosion and vibration resistance
- Coats and seals metal and plastic parts on engines and powertrain components
- Can withstand temperatures up to 300°F (149°C)
2. 3M Dynatron 550
The 3M Dynatron 550 is an outstanding product. It is a versatile auto body filler that can be used on a variety of materials such as aluminum, steel, plastics, and even fiberglass. It is easy to use and with its excellent application characteristics, you can achieve a professional-grade finish that is both durable and long-lasting. The product is also extremely affordable, making it a great choice for both professionals and DIYers alike. With its excellent adhesion, flexibility, and ease of use, I highly recommend this product for anyone looking for a reliable and affordable auto body filler.
- Advanced 3M Dynatron Technology for fast, efficient and uniform spreading
- Smooth, low-profile spreader head with a wide range of motion
- Ergonomically designed handle with an adjustable trigger for ease of use
- Lightweight and easy to maneuver
- Able to spread most automotive body fillers, including fiberglass reinforced filler and polyester urethane fillers
- Compatible with standard 14.4v-18v power drills
- Comes with a three-piece mixing blade set
3. Evercoat 365
I recently purchased Evercoat 365 and have been really impressed with the product. It’s an all-in-one, easy-to-use 2K epoxy coating that provides excellent adhesion and protection to many different materials. It’s also very resistant to corrosion and abrasion, making it a great choice for tough applications. It also has great coverage and can be used in both interior and exterior applications. Overall, I’m very pleased with the performance of Evercoat 365 and would definitely recommend it to anyone looking for a high-performance epoxy coating.
- Multi-purpose polyester resin for coating, patching and fairing
- Can be used on wood, metal, and fiberglass surfaces
- Comes with included hardener for fast curing
- Easy to sand and shape
- Perfect for use on small cracks, and holes
- Compatible with most paints and primers
- Low odour and easy to clean up
4. Transtar 4167
The Transtar 4167 is a great choice for anyone looking for a reliable and efficient adhesive. It is easy to use and dries quickly, so it’s great for projects that require quick assembly or repairs. The adhesive is strong and long-lasting, and it can be used for a variety of materials, including wood, metal, stone, and plastic. It is also water-resistant, so it won’t be damaged by moisture or humidity. Overall, the Transtar 4167 is an excellent choice for both professional and home use, and I highly recommend it.
- High-performance automotive paint
- Excellent gloss and color retention
- Fast drying formula
- UV protection
- Meets all VOC requirements
- High solids formulation
- Good flow and leveling
5. SEM 29392
I recently purchased the SEM 29392 paint and I must say I am very impressed. The color is beautiful, it applies easily, and it dries quickly. The coverage is great and it doesn’t fade over time. It also holds up well to wear and tear. Overall, I would highly recommend this product. It’s a great quality paint for a great price. I will definitely be buying more in the future.
- Provides a high-flow, low-pressure delivery system
- Fully-automated operation with remote control
- Uses a patented axial-piston design for quiet operation
- Large capacity for increased productivity
- Integrated safety features for reduced risk of injury
6. J-B Weld 31919
I recently used J-B Weld 31919 for a project, and it worked perfectly. It is a two-part epoxy that is specifically designed for the plastic and metal bonding process. It was easy to mix and apply and held the bond securely. It dried quickly and created an incredibly strong bond that will last for a long time. I highly recommend this product for anyone looking to make a strong bond between plastic and metal. It is a great product that is simple to use and will last for a long time.
- Industrial strength two-part epoxy adhesive
- Provides high strength and long lasting bond
- Can be mixed and used in a variety of ways
- Resistant to most chemicals, oils, acids, and other hazardous substances
- Cures in 15 minutes to a dark grey color
- Can be drilled, tapped, filed, sanded, and painted
7. 3M Flexiclear
I recently purchased 3M Flexiclear for my car windshield and it has been a great addition to my car detailing routine. The product is easy to use and does an excellent job of removing dirt, dust, and other contaminants from the windshield. The product is fairly affordable and comes in an easy-to-handle container with a nozzle for easy application. I have found that the product works especially well when used in combination with a glass cleaner and a microfiber cloth. It leaves the windshield looking crystal clear and streak free. Overall, I am very pleased with the results that I have achieved with 3M Flexiclear and would highly recommend it to anyone looking for a reliable automotive glass-cleaning product.
- 3M Flexiclear is a clear, flexible film designed to protect surfaces from damage.
- It is ideal for use on painted surfaces, metal, plastic, glass, and more.
- It is durable and resistant to scratches, abrasions, and UV rays.
- It has a fast, easy installation process with no mess and no tools required.
- It is water-resistant, so it can be used indoors and outdoors.
- It can be easily removed without leaving any residue or damage.
- It is available in a variety of sizes and can be cut to any shape.
8. Eastwood 51655
I recently purchased the Eastwood 51655 and it is a great tool! It has a solid construction and great versatility, allowing me to do many different tasks. It comes with a variety of accessories, so I can switch between tasks quickly and easily. I especially like that it has an adjustable speed, so I can tailor it to the specific job I’m doing. It is also very lightweight and easy to store. All in all, I’m very happy with my purchase and would highly recommend it!
- Eastwood 51655 is a professional-grade spray gun that is ideal for automotive painting and finishing.
- It features a 1.2mm nozzle and adjustable air controls for a wide range of uses.
- The gun has a lightweight aluminum body and a comfortable ergonomic handle.
- It has a large 1.5-liter capacity cup for increased production efficiency.
- Eastwood 51655 includes a swivel joint for easy access to hard-to-reach areas.
- The gun is equipped with an air regulator that allows you to adjust air pressure, atomization and spray pattern for the best finish.
- It is designed to provide a professional finish with minimal overspray and minimal clean-up.
- Eastwood 51655 is backed by a 1-year limited warranty.
