I did a search and nothing came up on the above topic. However, I believe there was a thread on this topic, not to long ago.
A thread on using spray cans VS an airbrushes prompted me to ask the above question. I weather with acrylic paints and chalks. I also need to apply decals on occasions and so need to apply a coat Dullcote to remove the gloss from decal paper and affix the powdered chalks. This is the only times I use spray paint in my modeling. I understand the benefits of airbrush systems and in the almost 60 years I have building models, I have not found the need for parting with the money for an airbrush set-up.
I have used Dullcote in spray cans when I have needed to do the above process in the past. However, recently, I have found the quality of Testors Dullcote to be lacking. The paint can spray nozzles leak like a sieve and the paint comes out in glops and drops.
So, I’m asking what spray can paints have you been using, other than Dullcote? We have Ace Hardware and Wallmart in my town, so please take this into account when making any recommendations.
I’m a long time believer in DullCote and have used it extensively on cars and structures. Over the years I have occasionally had some difficulty with the sprays, but usually I worked out the problem - typically by replacing the nozzle.
There are other products we can use. Any clear matte spray from Hobby Lobby or Michaels is a good prospect. Of course I would test first, but if its ok for plastic, it should be fine.
I have also brushed on clear matte “paint” and that works great - but it has a heck of an odor and you have to work fast.
One thing I’ve found… make sure the can is at room temp (65-80), and when you finish, turn the can upside down and spray a bit, which will tend to clear the nozzle for next time.
Not sure if this will help. Have you tried Dullcote Flat Lacquer Liquid product #1160? I have used it (with a brush) to dull and seal decals. I do have an airbrush and it does well with powders on my models.
If there is one not too far from you, Lowe’s offers Valspar Clear Flat at about $4 for a 12 ounce can.
If you decide to take this route, when you get to Lowe’s take a small glossy piece of dark colored styrene with you. At the store ask the sales rep in the paint department if he/she will allow you or if they will spray just a quick coat on your sample with that clear. Friendly reps in home stores sometimes allow test sampling of products; especially since the amount in your case would be miniscule. This way you can gauge if the result is as flat as you’d like it to be.