Seymour 16-845 Primer, Spray Weld Through
$15.88
Price: $15.88
(as of Apr 04, 2025 22:45:34 UTC – Details)
A cold galvanizing primer that contains 86-Percent Type I inorganic zinc in the dried paint film. Resists oxidation, and the galvanizing protection continues even if scratched. Can be topcoated for maximum durability. Meets or exceeds the performance requirements of ASTM A780, MIL-P-26915C, MIL-P-46105, DOD-P-21035A, SSPC-Paint 20. Contains an additive which results in less smoke and electrode wear when welding, and cuts faster than 100-Percent zinc rich coatings. As a responsible corporate citizen, Seymour of Sycamore is thoroughly committed to protecting the natural environment and ensuring the well-being of our employees. This means not only providing a safe, clean and healthy workplace, but also fulfilling our legal and social responsibilities within the community. Seymour has developed coatings with waterborne and high-solids resins as an alternative to traditional solvent-based polymers. Seymour products do not contain lead, cadmium, mercury, chromates or chlorinated solvents.
High quality, fast drying surface
Excellent adhesion for a finishing coat
Product is flexible and sandable
Works on metal and wood
Does not contain lead, cadmium, mercury, chromates or chlorinated solvents
Customers say
Customers find the primer works well, provides excellent coverage, and stops flash rust effectively. They appreciate its quality, with one customer noting it makes chain link fences look brand new, and consider it good value for money. The paint matches factory primer and customers find it easy to apply. While some customers report good weld-through properties, others find it impossible to weld through.
AI-generated from the text of customer reviews
Craig Diller –
As advertised
Works as advertised flowed the instructions and had no issues welding through it
AOD –
Good civerage
Good adhesion
That Old Dude –
Welded right through it
This is good galvanized primer. It covers well and dries quickly. Used this on some car body panels that were overlapped to keep the rust at bay. Also used it on some panels that were spot welded and it worked well on those as well. You might have to play with the settings on your welder because I found it needed to be hotter to get a solid weld. Be careful on thin panels of course. All total I have bought 3 cans of this for different uses and if I need more, this is the brand I would buy.
Teresa S. –
Impossible to weld without correct technique
Impossible to get a decent weld using this âweld throughâ primer. Using mig process on 16 ga clean steel.Nothing but porosity and poor weld starts.Set up same weld without primer and no issues.Edit: there is a technique described by Caswell, where the primer is removed from the bottom of a plug weld using a small end mill or cartridge primer pocket cleaner. This allows a clean start without sputtering and excessive inclusions.
Bruce M. Sweeter –
Great paint
They cover great and dry fast.
Carlton Flowers –
Less than half the price of 3M, works the same
I won’t ever buy the $40 3M weld-thru spray primer again, after using this product. Less than half the cost, and does the exact same thing.
Grant –
High quality
I like how it matches the factory primer. Welded pretty good in my opinion. I used a mig welded when welding the panel.
Devin –
It has to be removed!
The product in sense of idea is great. However when it comes to actuality and real world use itâs useless. My agent who had to weld 3 specific parts on had to remove all the âprimerâ.The issue being it causes flaws in the weld.Based upon I advise skipping this product.So use at oneâs own risk.