Birchwood Casey Presto Gun Blue Touch-Up Pen
- Quickly and easily penetrates hard steel.
- Gives a durable blue-black finish that won’t rub off.
- Use like a marking pen.
The Presto Gun Blue Pen quickly and easily penetrates hard steel and gives a durable blue-black finish that won’t rub off. Use like a marking pen for one-coat coverage on non-stainless steels.
Q: What type of metals can the Presto Gun Blue Pen be used on?
A: Presto Gun Blue Pen works on steel. Does not work on stainless-steel.
Q: How come I can’t tell if my Presto Gun Blue Pen is working or it seems like it is dried out?
A: This is a very common mistake as you will not obviously see fluid flowing from the pen during use. To ensure that the Presto Gun Blue Pen is working we suggest testing it on a piece of white paper to visually confirm that fluid is flowing.
Q: Why is the Presto Gun Blue Pen not working or rusting?
A: The chemical may not take to the metal if it is not fully clean. For the best results use Birchwood Casey Cleaner-Degreaser. If you do not have access to it, ordinary dish-washing liquid soap will work as a substitution.
Customer Ratings & Reviews
A great, handy product
I previously had one of these I had used for years. It is the greatest thing for a simple touch-up work of scratches, nicks, and spots. It makes them much less noticeable and can easily be blended in, using your finger around the edges.
Suitable within reasonable limitations
I used this as a touch-up pen, the only purpose I believe it was intended for. I de-horned a Remington 870 Express Tactical shotgun with my Dremel tool and then used the Presto Gun Blue Pen to go over all the edges that I had made shiny and make them black again. It worked well for that purpose. Note that I said black and not blue. In my case, I found that desirable. If your gun's finish has a significant blue cast to it, this Presto pen might not get you the matching color you are hoping for. I'm sure the type of steel, temperature, application time, and many other variables may affect your outcome. I also used my Dremel to relieve a larger area inside the barrel extension that feeds shells into the chamber. (This was to correct an FTE issue.) On the much larger surfaces, I got a much less satisfactory result. In this area, the finish sometimes turned brown (i.e., rust) instead of black or blue. But this was down inside the gun, so as long as it provides a modicum of corrosion resistance, I'd call it satisfactory, there, as well.
I've had mine for about 4 years now, so it hasn't dried up yet. Used for minor nicks and scratches, but also for roll pins and screws, especially for un-blued hardware store items. I've used it on small "file to fit" parts as well. No, it won't restore your show gun to 100%, but it's beneficial on working guns.
I bought this many years ago to fix a scrape on the barrel of a revolver (something got dropped on it). I followed the directions carefully, and after buffing with #0000 steel wool, it requires some looking to find the scrape. It is only visible because of the scratches in the barrel caused by the object that struck it. Several years later, I used it again on another gun with the same outcome. Overall an excellent product for touchups.