Painting fire – muzzle flashes
In today's tutorial, I have painted a muzzle flash which occurs when a shot is fired from a machine gun or rifle.
There are three things to keep in mind here:
1) It is important to know that the color gets more red and darker the cooler the ignited gunpowder gets, so the part of the flash that is adjacent to the barrel will be yellow, and will gradually become red and black towards the tip.
2) We start with a white undercoat, because if we start from a black undercoat, as we are mostly working with yellow, orange and red paints (which in 99% of cases cover VERY weak, even unthinned), we will spend more time for the same result.
3) Gradual transitions using the glazing technique.
A glaze is a highly thinned and transparent paint. There are a number of ways to achieve these transitions, I have used Lahmian Medium by Games Workshop/Citadel which is very good for thinning Vallejo and Scale 75 paints, as well as a matte finish in the case of Vallejo Game Color.
We start with a white undercoat, I have used White from Scale 75 thinned with Lahmian Medium, and have applied it through 3 layers until I achieved solid coverage. It is important to emphasize here that the next layer of paint should not be applied until the previous one has dried. A hair drier or similar device can come in handy to accelerate the drying procedure.
We then continue with two shades of yellow color, one somewhat cooler than the other, I have used the following paints in order: Sun Yellow and Gold Yellow from Vallejo Game Color.
It is important, when creating a transition, to create a glaze of the midtone of every pair of colors and paint the location on the flash where we want our transition to be. Here it is also important to note that a glaze, that is, a very thinned color has even weaker coverage, as well as drying somewhat slower, which enables us to play with the transition towards one color or the other, depending where in the end we want to have the transition, as well as its width and intensity. Also, when glazing, the place where the brush leaves the painted surface is the place where the most pigment will be deposited.
The next two colors are orange, one slightly more yellow, and one slightly more red, I have used the following paints in order: Orange Fire (Vallejo Game Color), and Clear Orange (Vallejo Model Color).
The last two colors are red (Scale 75 Antares Red), and black (Scale 75 Black).
I would once more like to emphasize to mix your paints, thin the midtones in order to achieve more gradual transitions, and take your time, especially if the previous layer of paint isn't completely dry.
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Science behind Acrylic Paints
- Binders (eng. resin) – form a film – in our case probably pure acrylates, I suspect they are styrene acrylates.
- Fillers – in addition to adding volume to the paint, they also affect the viscosity, coverage and appearance of the dry film
- Pigments – the main division is into organic pigments and inorganic pigments. Inorganic ones are more covering but have less vivid shades, while organic ones are often quite poorly covering (yellow for example) but their shades are vivid and bright
Additives:
- Anti-foam
- Rheological modifiers – affect the behavior of wet paint on the substrate (e.g. spillage) and the behavior of the paint when a force is applied to it (brush, roller, spray, airbrush). Rheological modifiers also include thickeners that affect the viscosity of the paint.
- Dispersants – envelop pigment and filler particles and prevent their agglomeration during standing. Good dispersion of pigment and filler affects the coverage and uniform appearance of the dry film. There are a bunch more but I won't go into too much detail
- Solvent – in this case water.
Contrast paints and speed paints – high pigment content, but not so much that it causes high coverage. They are formulated to spread, not to stay where you put them. The result of spreading is that the paint collects in the recesses, where a thicker film of paint remains than on the protruding parts of the miniature. Where the film of paint is thicker (the recesses), the shade of the contrast paint is more pronounced, unlike on the protruding parts where the film is thinner, which is why the shade is then influenced by the color of the substrate.
Composition:
- Binders
- Pigments
- Additives – all listed above + surfactants that reduce the surface tension of the wet paint film, which is why it flows
- solvent
- I would say they do not contain fillers, or contain very, very little of them
Washes – similar in formulation and behavior to contrast agents, only they have a much lower proportion of pigments, certainly no fillers, a higher proportion of surfactants, lower viscosity, and probably less binders.
If we want to greatly dilute acrylic paint or contrast, it is better to use a product intended for this purpose from the manufacturer of that paint rather than water, because it contains all the necessary amount of binders and additives for that paint to retain its properties.
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U ovom članku, naša Dunja nam otkriva znanost iza akrilnih boja.
Akrilne boje – visoki udio pigmenta i dobra pokrivnost. Ako su dobro formulirane ostaju tamo gdje ih naneseš, ne ostavljaju „brush marks“ i suše se dovoljno sporo da stigneš napravit što želiš na minijaturi a opet dovoljno brzo.
Sastav:
- Veziva (eng. resin) – formiraju film – u našem slučaju vjerojatno čisti akrilati, sumnjam da su stiren akrilati.
- Punila – osim što dodaju volumen boji utječu i na viskoznost, pokrivnost i izgled suhog filma
- Pigmenti – glavna podjela je na organske pigmente i anorganske pigmente. Anorganski su više pokrivni ali manje živih nijansi, dok su organski često dosta loše pokrivni (žuti npr) ali zato su im nijanse žive i jarke
Aditivi:
- Protiv pjene
- Reološki modifikatori – utječu na ponašanje mokre boje na podlozi (npr razlijevanje) i na ponašanje boje dok na nju djeluje sila (kist, valjak, sprej, airbrush). Pod reološke modifikatore spadaju i ugušćivači koji utječu na viskozitet boje.
- Dispergatori – obavijaju čestice pigmenata i punila i sprječavaju aglomeraciju istih stajanjem. Dobra dispergiranost pigmenta i punila utječe na pokrivnost i ujednačen izgled suhog filma.
- Ima ih još hrpa ali neću toliko u detalje
- Otapalo – u ovom slučaju voda.
Kontrastice i speed paints – visoki udio pigmenta, ali ne toliki da uzrokuje visoku pokrivnost. Formulirane su da se razlijevaju, a ne da ostaju tamo gdje ih staviš. Posljedica razlijevanja je skupljanje boje u udubine gdje onda ostane deblji film boje nego na isturenim dijelovima minijature. Tamo gdje je film boje deblji (udubine) nijansa kontrastice izraženija, za razliku od isturenih dijelova na kojima je film tanji zbog čega na nijansu onda utječe boja podloge.
Sastav:
- Veziva
- Pigmenti
- Aditivi – svi nabrojani gore +
- surfakanti koji smanjuju površinsku napetost mokrog filma boje zbog čega i dolazi do razlijevanja
- otapalo
- rekla bih da ne sadrže punila, ili ih sadrže vrlo vrlo malo
Washevi – po principu formuliranja i ponašanju slični kontrasticama, samo imaju puno manji udio pigmenata, sigurno ne sadrže punila, veći udio surfakanata, manji viskozitet i vjerojatno manje veziva.
Ako želimo jako razrijediti akrilnu boju ili kontrasticu bolje je koristiti za to predviđen proizvod od proizvođača te boje nego vodu, jer sadrži svu potrebnu količinu veziva i aditiva kako bi ta boja zadržala svoja svojstva.
" ["created"]=> string(19) "2025-11-20 13:03:37" ["modified"]=> string(19) "2025-11-20 13:03:37" } ["Member"]=> array(10) { ["id"]=> string(2) "64" ["group_id"]=> string(1) "1" ["first_name"]=> string(9) "Krunoslav" ["last_name"]=> string(8) "Belinić" ["first_name_mask"]=> string(9) "krunoslav" ["last_name_mask"]=> string(7) "belinic" ["username"]=> string(5) "Kruno" ["password"]=> string(40) "eb3fda45fbec0258e90d809803b10491c548b22f" ["born"]=> string(19) "2015-01-18 09:19:00" ["created"]=> string(19) "2015-01-18 09:20:39" } } Krunoslav Belinić, 20th November 2025 - We attended: ModelMania 2025 Marko Paunović, 5th November 2025
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