Weld thru primer is an essential product for successful welding projects, providing a protective layer that prevents rust and corrosion from forming. After researching and testing various options, we've selected the best weld thru primers based on effectiveness, ease of application, and customer reviews. Our top picks offer long-lasting protection and are easy to use for DIY projects. It's important to carefully follow the manufacturer's instructions to ensure maximum protection. Reviews from other customers were also taken into consideration when making our choices. Choosing the right weld thru primer is crucial for protecting your metal surfaces and ensuring project success. Stay tuned for our top ranking products.1Seymour Paint Primer Spray Weld Through Seymour Paint Primer Spray Weld Through View on Amazon 9.8 Seymour 16-845 Primer, Spray Weld Through is a must-have for any auto body repair project. This high-quality primer provides excellent adhesion and corrosion protection, making it perfect for use on bare metal surfaces. Its unique formula also allows for welding through the primer without damaging the weld or the surrounding area. Plus, it dries quickly and is easy to sand, ensuring a smooth and flawless finish. Whether you're a professional mechanic or a DIY enthusiast, this primer is sure to deliver exceptional results every time.Rated 9.8 based on 10 JPOST ProsProvides rust protection, Easy to apply, Dries quicklyConsMay require multiple coats2Eastwood Weld Thru Gray Aerosol Primer Eastwood Weld Thru Gray Aerosol Primer View on Amazon 9.6 Eastwood Durable Organic Binders Self Etching Weld Thru Gray Aerosol Primer 16.1 oz. is a high-quality spray primer that is perfect for anyone looking to prep their surfaces for welding. This primer is made with durable organic binders that help to create a strong bond between the metal and the primer. It is also self-etching, which means that it will etch into the surface of the metal and create a strong bond. This primer is perfect for use on bare metal surfaces, and it can be used on a variety of different metals, including steel, aluminum, and stainless steel. With a 16.1 oz. can, this primer is perfect for small to medium-sized projects and will help to ensure that your welds are strong and long-lasting.Rated 9.6 based on 10 JPOST ProsDurable organic binders, Self-etching for strong adhesion, Gray color for easy coverageConsMay require multiple coats3U-Pol Products Zinc/Copper Weld Through Primer U-Pol Products Zinc/Copper Weld Through Primer View on Amazon 9.1 U-Pol Products 0768 Zinc/Copper WELD#2 Weld Through Primer is a must-have for anyone who frequently works with metal. This 450ml can of primer is designed to protect metal surfaces from corrosion during welding. It contains a high concentration of zinc and copper, which create a durable barrier against rust and other forms of corrosion. This primer is easy to apply and dries quickly, making it a convenient addition to any workshop. Whether you're a professional welder or a DIY enthusiast, U-Pol Products 0768 Zinc/Copper WELD#2 Weld Through Primer is an essential tool for metalworking projects.Rated 9.1 based on 10 JPOST ProsProtects against corrosion, Easy to apply, Dries quicklyConsMay require multiple coats4Sem 40773 Zinc Based Weld Thru Primer Sem 40773 Zinc Based Weld Thru Primer View on Amazon 8.8 SEM 40773 Zinc Based Weld Thru Primer is a high-quality primer that is perfect for those looking for a reliable and effective way to prepare metal surfaces for welding. This primer is designed to protect your metal surfaces from corrosion while also providing a strong base for welding. It can be used on a wide range of metals, including zinc-coated steel, and is easy to apply with a spray gun. With this primer, you can be sure that your metal surfaces will be protected and ready for welding, no matter what the job requires.Rated 8.8 based on 10 JPOST ProsZinc-based for corrosion protection, Suitable for welding, Dries quickly for fast applicationConsMay require multiple coats5null Weld 2 Copper Primer Aerosol Spray null Weld 2 Copper Primer Aerosol Spray View on Amazon 8.6 U-Pol Products Weld 2 Copper Primer is an excellent solution for those looking to prime copper surfaces. This aerosol primer is easy to apply and provides a durable, long-lasting finish. The primer is specially formulated to adhere to copper surfaces and can be used on a variety of applications, including automotive, marine, and industrial. It also provides excellent rust prevention and can be used on bare metal or previously painted surfaces. With its quick-drying formula, U-Pol Products Weld 2 Copper Primer is a must-have for any DIYer or professional.Rated 8.6 based on 10 JPOST ProsEasy to apply, Good adhesion, Dries quicklyConsStrong odor6SEM Weld-Thru Primer 13oz. SEM Weld-Thru Primer 13oz. View on Amazon 8.3 SEM 39783 Weld-Thru Primer is a must-have for any DIY or professional auto body repair project. This 13 oz. can of primer is designed to be applied directly to welded surfaces, providing excellent adhesion and corrosion protection. The fast-drying formula allows for quick and easy application, and the high-quality finish ensures a professional look. Whether you're repairing rusted panels, patching holes, or welding new components in place, SEM 39783 Weld-Thru Primer is the perfect solution for a long-lasting and durable repair.Rated 8.3 based on 10 JPOST ProsProvides strong adhesion, Prevents rust and corrosion, Dries quicklyConsMay require multiple coats7U-POL Weld Through Copper Rich Primer U-POL Weld Through Copper Rich Primer View on Amazon 8 U-POL Weld#2 - Weld Through Copper Rich Primer 450 Ml is a high-quality copper-rich primer that makes welding jobs easier, especially for automotive repairs. This primer is designed to protect bare metal surfaces from rust and corrosion, and it is formulated to be used directly on the surface to be welded. It provides excellent adhesion and is fast-drying, making it the perfect choice for professionals and DIY enthusiasts alike. The 450 ml can is compact and easy to handle, and the primer is easy to apply with a spray gun or brush. If you're looking for a reliable and effective welding primer, U-POL Weld#2 is a great choice.Rated 8 based on 10 JPOST ProsCopper rich for corrosion protection, Can be used on various surfaces, Dries quicklyConsMay require multiple coats8U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer View on Amazon 7.6 U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer (USC-3680001) is a reliable and efficient product that offers a convenient solution for those seeking a high-quality primer. This primer is designed to provide excellent adhesion and corrosion protection, making it perfect for use in automotive and industrial applications. It dries quickly and can be easily sanded, making it a versatile option for any project. Its compact size and lightweight make it easy to handle and store. Overall, U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer (USC-3680001) is a great choice for anyone looking for a reliable and effective primer.Rated 7.6 based on 10 JPOST ProsEasy to apply, Fast drying, Provides excellent adhesionConsMay require multiple coats9U-POL UPol WELD/AL WELD-2 Zinc Rich Primer U-POL UPol WELD/AL WELD-2 Zinc Rich Primer View on Amazon 7.3 U-POL UPol WELD/AL WELD-2 450ml Zinc Rich Primer - Grey/green is a high-quality primer that provides excellent corrosion resistance in industrial and automotive applications. This primer is perfect for use on metal surfaces and can be used as a standalone coating or as a base coat for other paints. The zinc-rich formula ensures that the primer provides long-lasting protection against rust and other forms of corrosion. With a grey/green finish, this primer is both functional and visually appealing. It is also easy to apply, making it a great choice for DIYers and professionals alike. Overall, U-POL UPol WELD/AL WELD-2 450ml Zinc Rich Primer - Grey/green is a reliable and effective choice for anyone looking for a high-quality primer that provides excellent protection against corrosion.Rated 7.3 based on 10 JPOST ProsHigh-quality zinc primer, Dries quickly, Excellent corrosion protectionConsStrong odor10SprayMax 1K Self Etch Weld Thru Primer SprayMax 1K Self Etch Weld Thru Primer View on Amazon 7.1 Spray Max 1K Self Etch Weld Thru Primer is a high-quality primer that is perfect for automotive repairs. This primer is specially designed to work on bare metal surfaces, providing a strong, corrosion-resistant base coat that helps prevent rust and other forms of damage. It is easy to apply and dries quickly, making it perfect for use in busy auto body shops or by DIY enthusiasts at home. With its superior adhesion and durability, Spray Max 1K Self Etch Weld Thru Primer is a must-have for anyone looking to achieve a professional-grade finish on their automotive repairs.Rated 7.1 based on 10 JPOST ProsProvides excellent adhesion, Dries quickly, Resistant to corrosionConsStrong odorFAQ
Seymour 16-845 Primer, Spray Weld Through is a must-have for any auto body repair project. This high-quality primer provides excellent adhesion and corrosion protection, making it perfect for use on bare metal surfaces. Its unique formula also allows for welding through the primer without damaging the weld or the surrounding area. Plus, it dries quickly and is easy to sand, ensuring a smooth and flawless finish. Whether you're a professional mechanic or a DIY enthusiast, this primer is sure to deliver exceptional results every time.Rated 9.8 based on 10 JPOST ProsProvides rust protection, Easy to apply, Dries quicklyConsMay require multiple coats Zinc Primer Paint
Eastwood Durable Organic Binders Self Etching Weld Thru Gray Aerosol Primer 16.1 oz. is a high-quality spray primer that is perfect for anyone looking to prep their surfaces for welding. This primer is made with durable organic binders that help to create a strong bond between the metal and the primer. It is also self-etching, which means that it will etch into the surface of the metal and create a strong bond. This primer is perfect for use on bare metal surfaces, and it can be used on a variety of different metals, including steel, aluminum, and stainless steel. With a 16.1 oz. can, this primer is perfect for small to medium-sized projects and will help to ensure that your welds are strong and long-lasting.Rated 9.6 based on 10 JPOST ProsDurable organic binders, Self-etching for strong adhesion, Gray color for easy coverageConsMay require multiple coats
U-Pol Products 0768 Zinc/Copper WELD#2 Weld Through Primer is a must-have for anyone who frequently works with metal. This 450ml can of primer is designed to protect metal surfaces from corrosion during welding. It contains a high concentration of zinc and copper, which create a durable barrier against rust and other forms of corrosion. This primer is easy to apply and dries quickly, making it a convenient addition to any workshop. Whether you're a professional welder or a DIY enthusiast, U-Pol Products 0768 Zinc/Copper WELD#2 Weld Through Primer is an essential tool for metalworking projects.Rated 9.1 based on 10 JPOST ProsProtects against corrosion, Easy to apply, Dries quicklyConsMay require multiple coats
SEM 40773 Zinc Based Weld Thru Primer is a high-quality primer that is perfect for those looking for a reliable and effective way to prepare metal surfaces for welding. This primer is designed to protect your metal surfaces from corrosion while also providing a strong base for welding. It can be used on a wide range of metals, including zinc-coated steel, and is easy to apply with a spray gun. With this primer, you can be sure that your metal surfaces will be protected and ready for welding, no matter what the job requires.Rated 8.8 based on 10 JPOST ProsZinc-based for corrosion protection, Suitable for welding, Dries quickly for fast applicationConsMay require multiple coats
U-Pol Products Weld 2 Copper Primer is an excellent solution for those looking to prime copper surfaces. This aerosol primer is easy to apply and provides a durable, long-lasting finish. The primer is specially formulated to adhere to copper surfaces and can be used on a variety of applications, including automotive, marine, and industrial. It also provides excellent rust prevention and can be used on bare metal or previously painted surfaces. With its quick-drying formula, U-Pol Products Weld 2 Copper Primer is a must-have for any DIYer or professional.Rated 8.6 based on 10 JPOST ProsEasy to apply, Good adhesion, Dries quicklyConsStrong odor
SEM 39783 Weld-Thru Primer is a must-have for any DIY or professional auto body repair project. This 13 oz. can of primer is designed to be applied directly to welded surfaces, providing excellent adhesion and corrosion protection. The fast-drying formula allows for quick and easy application, and the high-quality finish ensures a professional look. Whether you're repairing rusted panels, patching holes, or welding new components in place, SEM 39783 Weld-Thru Primer is the perfect solution for a long-lasting and durable repair.Rated 8.3 based on 10 JPOST ProsProvides strong adhesion, Prevents rust and corrosion, Dries quicklyConsMay require multiple coats
U-POL Weld#2 - Weld Through Copper Rich Primer 450 Ml is a high-quality copper-rich primer that makes welding jobs easier, especially for automotive repairs. This primer is designed to protect bare metal surfaces from rust and corrosion, and it is formulated to be used directly on the surface to be welded. It provides excellent adhesion and is fast-drying, making it the perfect choice for professionals and DIY enthusiasts alike. The 450 ml can is compact and easy to handle, and the primer is easy to apply with a spray gun or brush. If you're looking for a reliable and effective welding primer, U-POL Weld#2 is a great choice.Rated 8 based on 10 JPOST ProsCopper rich for corrosion protection, Can be used on various surfaces, Dries quicklyConsMay require multiple coats
U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer (USC-3680001) is a reliable and efficient product that offers a convenient solution for those seeking a high-quality primer. This primer is designed to provide excellent adhesion and corrosion protection, making it perfect for use in automotive and industrial applications. It dries quickly and can be easily sanded, making it a versatile option for any project. Its compact size and lightweight make it easy to handle and store. Overall, U.S. Chemical & Plastics 1K SELF Etch Weld-Thru Primer (USC-3680001) is a great choice for anyone looking for a reliable and effective primer.Rated 7.6 based on 10 JPOST ProsEasy to apply, Fast drying, Provides excellent adhesionConsMay require multiple coats
U-POL UPol WELD/AL WELD-2 450ml Zinc Rich Primer - Grey/green is a high-quality primer that provides excellent corrosion resistance in industrial and automotive applications. This primer is perfect for use on metal surfaces and can be used as a standalone coating or as a base coat for other paints. The zinc-rich formula ensures that the primer provides long-lasting protection against rust and other forms of corrosion. With a grey/green finish, this primer is both functional and visually appealing. It is also easy to apply, making it a great choice for DIYers and professionals alike. Overall, U-POL UPol WELD/AL WELD-2 450ml Zinc Rich Primer - Grey/green is a reliable and effective choice for anyone looking for a high-quality primer that provides excellent protection against corrosion.Rated 7.3 based on 10 JPOST ProsHigh-quality zinc primer, Dries quickly, Excellent corrosion protectionConsStrong odor
Spray Max 1K Self Etch Weld Thru Primer is a high-quality primer that is perfect for automotive repairs. This primer is specially designed to work on bare metal surfaces, providing a strong, corrosion-resistant base coat that helps prevent rust and other forms of damage. It is easy to apply and dries quickly, making it perfect for use in busy auto body shops or by DIY enthusiasts at home. With its superior adhesion and durability, Spray Max 1K Self Etch Weld Thru Primer is a must-have for anyone looking to achieve a professional-grade finish on their automotive repairs.Rated 7.1 based on 10 JPOST ProsProvides excellent adhesion, Dries quickly, Resistant to corrosionConsStrong odor
Q: What is weld thru primer?
A: Weld thru primer is a type of primer designed to be used on bare metal surfaces prior to welding. It provides a protective layer that prevents rust and corrosion, while also allowing for better adhesion of the weld.
Q: Do I need to use weld thru primer?
A: It is highly recommended to use weld thru primer when welding on bare metal surfaces. Not only does it provide protection from rust and corrosion, but it also helps to improve the quality of the weld.
Q: Can I paint over weld thru primer?
A: Yes, you can paint over weld thru primer once it has dried. However, it is important to note that the primer should not be sanded or removed in any way prior to painting, as this can compromise its protective properties.Conclusions
Paint For Steel After conducting a thorough review of various weld thru primers, it's clear that this category of products is essential for anyone looking to achieve a strong and long-lasting weld. Each of the products reviewed had its unique features, benefits, and drawbacks. Some were better suited for certain surfaces or types of paint, while others were more durable. However, regardless of the specific product, it's clear that a high-quality weld thru primer is a must-have for anyone looking to achieve a strong and reliable weld. So, if you're looking to take your welding to the next level, we highly recommend investing in a high-quality weld thru primer like the ones we reviewed.