F-15 paint

[Finn]

Saw the small version of the pic on Cybermodeler so went and found the Hi-Res one:

 

 

Jari

[glorystomper]

DAMN that's nice

[marcinko]

is there an album with more pics ?

[mingwin]

beautiful photo.

i remember a while ago, in a thread related to a video, where a guy was spray painting a F-100 outside, that someone here, had explains what was causing that cool outline effect, that can appears on the edge of a color "patch", under certain lighting/angle of viewing.... the problem, is that i don't remember exactly... 

Edited October 26, 2016 by mingwin

[Ol Crew Dog]

Paint shop uses no masks for the pattern , there are variations from jet to jet. We use to be able to get a darker mix on the dark ghost gray so your jet stood out in the landing pattern. So the paint is done free hand with a pattern sprayed out loosely resembling the patter in tech data and then filled in, just like colouring in a colouring book. That is why it appears to have an outline on the pattern. Well at least on the F-15 that was the case.

[torchf4]

Yeah we don't use masks here neither. All free hand with the spray gun just like for cars. That line around the outer edges of the darker camo is caused by how the paint atomizes (guess that's the right word) as it leaves the nozzle.

 

You can see the effect if you spray a line with a spray can. The center of the line has the most paint and solvent hence it stays wet while at the top and bottom edges atomizes more hence the paint particles are dryer and dries even before hitting the surface hence you see the blurry feathered edges and if you touch it, it may even feel powdery. if its a gloss or semi gloss paint you will see that the edges will be flatter than the center once everything is fully dried. Same thing happens when painting a car or plane except the effect is super magnified.

 

Hence painters are always taught to overspray the previous run by at least 1/3 on their next run to eliminate this flat effect especially if you want a nice shiny car finish. For the pic posted what you are seeing is the outer edge of the paint run that has remained rough and powdery but the inner edge has been covered up by the filling in of the darker color portion. The effect is very obvious when viewed on a new bird out of the shop in sunlight at a slant angle as in the pic as the fully matt demarcation absorbs light while the rest of the paintwork reflects.

 

The effect is most obvious when freshly painted. It will diminish over time as the whole surface gets polished by the airflow but still discernible in he right conditions as above.

 

Next time you chance upon a newly painted bird, especially before its 1st FCF, just run your hand over the demarcation edge, it will feel like sandpaper and the paint powder will even come off in your hand.

 

Hope my babble is understandable!

 

Cheers

Andy

 

 

Edited October 28, 2016 by torchf4

[mingwin]

thank you guys for the explanations. 

[Ol Crew Dog]

16 hours ago, torchf4 said:

Yeah we don't use masks here neither. All free hand with the spray gun just like for cars. That line around the outer edges of the darker camo is caused by how the paint atomizes (guess that's the right word) as it leaves the nozzle.

 

You can see the effect if you spray a line with a spray can. The center of the line has the most paint and solvent hence it stays wet while at the top and bottom edges atomizes more hence the paint particles are dryer and dries even before hitting the surface hence you see the blurry feathered edges and if you touch it, it may even feel powdery. if its a gloss or semi gloss paint you will see that the edges will be flatter than the center once everything is fully dried. Same thing happens when painting a car or plane except the effect is super magnified.

 

Hence painters are always taught to overspray the previous run by at least 1/3 on their next run to eliminate this flat effect especially if you want a nice shiny car finish. For the pic posted what you are seeing is the outer edge of the paint run that has remained rough and powdery but the inner edge has been covered up by the filling in of the darker color portion. The effect is very obvious when viewed on a new bird out of the shop in sunlight at a slant angle as in the pic as the fully matt demarcation absorbs light while the rest of the paintwork reflects.

 

The effect is most obvious when freshly painted. It will diminish over time as the whole surface gets polished by the airflow but still discernible in he right conditions as above.

 

Next time you chance upon a newly painted bird, especially before its 1st FCF, just run your hand over the demarcation edge, it will feel like sandpaper and the paint powder will even come off in your hand.

 

Hope my babble is understandable!

 

Cheers

Andy

 

 

What he said!

cheers

[Finn]

Here is another example:

 

 

Jari