Category Archives: Welding Pin Holes

Welding Pin Holes

For today’s topic, we are going to be talking about the pinholes that appear during welding. You may think that pinholes that appear on your weld isn’t noticeable, but let me tell you that it is, especially if you have a keen eye for detail. If you don’t take care of it as early as you can, it could be a starting point for rust.

We all know that welding is the art or craft of molding or joining two pieces of metal together with the help of either heat or electricity. It is a popular profession these days, and it pays well. Of course, every welder wants to give their best at the task that has been assigned to them and that is why seeing pinholes or sometimes called as “Porosity” is not a sight to behold. In fact, this is considered as a defect in the welding world. There are lots of reasons as to why pinholes were formed in your weld, but good thing about this is you can do something about them.

if the pinhole is in a round shape, it’s technical term is “Spherical Porosity”. However, if you look at it closely and notice that it is a little elongated, then that is called “Piping” or a “wormhole”.


Keep in mind that even if Pinholes are considered as a defect, they aren’t serious defects. However, your finished product might be rejected because of them. They are not a pretty sight to see, especially if they can be found at places that they aren’t supposed to be in. So to get to the point, what can you do about them?

You can cover them up with an epoxy. Here’s an example:

Say hello to J-B’s Weld 8267-S SteelStik Epoxy! You can purchase this product at it’s original price which is at 17.09 US DOLLARS, however if you purchase from Amazon, you can get it at only 6.99 US DOLLARS! This allows you to save 10.10 US DOLLARS!


This product can repair anything that is made from or of metal. It is able to cure wet and dry surfaces, even those parts of your weld that are completely submerged in either gasoline or water. You can drill this, file, tapped, machined, and painted on the area that you want to fix.

It will set in 5 minutes and will cure the area you have applied it to in 1 hour.



Are you still having a problem  in your welding with regards to pinholes, then it may be time to check out our other articles here! Browse around! What did you think about our article for today? We hope you enjoyed it and have gained new information about the topic that is helpful to you! If you have further questions related to the topic, then please, feel free to send us a message or leave us a comment below! It would be our pleasure to answer your questions! Also if you have enjoyed our article, it would be a great decision to subscribe to us! By doing so, we will be able to alert you thru your e-mail inbox that we have posted something new! That way, you are always informed! Feel free to browse around our website as well. You never know, maybe you’ll find something that could capture your interest. Have a nice! We hope to see you again here soon!