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"Some useful testing info on spray priming (maybe)" Topic


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456 hits since 13 Aug 2017
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Baranovich Supporting Member of TMP13 Aug 2017 4:14 p.m. PST

Was doing quite a bit of spray priming the last few days and wanted to share some observations on what I experienced.

I use black primer for almost everything that I model, terrain and miniatures. The two primary brands that I use are Armory Black and GW's Chaos Black.

I live in CT where it's a typically warm August with a fair amount of humidity. I have a basement where I can spray prime and open the cellar doors for ventilation. But the odor of the stuff still creeps up into the house. Our garage is the better choice where the vapors can fully dissipate outdoors. A little later in the early fall I can go back to priming outdoors when the humidity goes away.

But I wanted to get some miniatures done now and decided to try some experiments with both brands.

It was about 83 degrees here yesterday afternoon with pretty decent humidity in the 60s% range.

I first used the Games Workshop Chaos Black on a few dwarf plastic miniatures. The GW spray was flawless and totally unaffected by the humidity, the miniatures had a crisp, clean finish with perfect detail. I went ahead and primed pretty much the rest of the dwarf army with the GW stuff.

Then I experimented with the Armory Black. The Armory primer appeared to spray and adhere normally. However upon closer inspection I saw that the Armory spray was kind of like "chalking up" on the miniatures a bit, it was landing on the miniatures and leaving this fine grit texture. In other words, it wasn't adhering properly to the miniatures. I concluded this was due to the humidity.

To prove this, I took the rest of my plastic minis. inside into the basement where we have climate control as well as a de-humidifier.

Sure enough, when I used the Armory spray in dryer, cooler air, it suddenly worked fine and the finish on the minis. was clean and flat with no grit or "chalkiness".

So for me anyway, in this instance at least, the GW spray primer appears to be the superior product. And not just because of the humidity either. The GW spray generally leaves a smoother, cleaner-looking primer finish whereas the Amory covers fine but the finish always feels and looks slightly rough and "dusty" is the best way I can describe it.

Have I discovered something here? I don't know – maybe, lol. For those of us to love to hate GW, I have to admit that in this case it appears that GW's spray is pretty darn good and can be used even in high heat and humidity.

Who knows if this is truly due to GW actually using a higher quality formula or just pure chance. I doubt GW manufactures its own spray paints, they're probably from a central source/supplier that makes paints and primers for general use.

BUT there IS a definite difference in the formulas between GW and Armory, and from what I experienced, the GW primer is the better product.

Jack Burton Supporting Member of TMP13 Aug 2017 5:01 p.m. PST

I use Armory primer for that "rough and dusty" finish. I find paint adheres better than with slick primers.

jdpintex14 Aug 2017 12:44 p.m. PST

The 'dusty' appearance is more due to the solvent evaporating before it hits the mini more than the humidity. The only time I've had this issue was when I lived in El Paso and there is never any humidity there.

I'm now using Krylon primer as nothing else seems to work in the Houston heat/humidity and even it doesn't work all the time.

Glad you got some priming done on a nice fall day.

Personal logo Tacitus Supporting Member of TMP14 Aug 2017 7:43 p.m. PST

I use Krylon, too. GW spray is awesome, really excellent stuff. Krylon is those things, too. For 1/3 the price.

FusilierDan Supporting Member of TMP15 Aug 2017 4:58 a.m. PST

I've found the primer & paint from Krylon has worked well.

nevinsrip Sponsoring Member of TMP17 Aug 2017 2:37 a.m. PST

Walmart flat black, at 97 cents a can, is the best primer around.

Try it and see.

Try this. Before spraying, take the can and run it under hot water for a few minutes. I put it in the drain hole and let the hot water run around it. Then shake it up and spray.

Second, when priming metal figures, heat them up with a hair dryer right before you spray them. The paint will adhere better.

Fitzovich16 Oct 2017 4:02 a.m. PST

"Walmart flat black, at 97 cents a can, is the best primer around.

Try it and see.

Try this. Before spraying, take the can and run it under hot water for a few minutes. I put it in the drain hole and let the hot water run around it. Then shake it up and spray.

Second, when priming metal figures, heat them up with a hair dryer right before you spray them. The paint will adhere better."

Thanks for the tips on priming. I have been using a variety of primers (mostly white in color) on my 6mm figs from Baccus and H&R and will use these ideas for the next round.

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