Turbo/exhaust rust help

[Badluck 13]

As I have said before I have been away from the hobby forever and a day,I am very impressed on how I see builds with everyday grime and wear......my question,what do you modelers use to make the effect so real looking,I know there is "rust" paint,but there has to more to it than that from the results I see on here.....thanks!!

[Tony Bryan]

Anthony has done a great job weathering his Excavator, and the about products work well also,

You can also try Rustall seems to work ok as well, but I find the rust just a bit to red for my liking, and if you want to add some texture to the manifolds as well, paint them, and while they are wet, sprinkle some baking soda on them, dust off and then paint again, adds a nice cast iron finish, but experiment on some scrap First

[clayton]

I use the soda a lot works great.

[monkeyclaw]

All of the aforementioned products are great, and I have to say I use baking soda most of the time. You can get different effects by using different materials; depending on the type of rusty look you are going for. Even things like PANKO work well to make large flakey chunks of rust....small model railroad dirts can also get the job done for larger chunks. Like others have said; you just have to try different methods; and see which looks right for your application.........matt

[Badluck 13]

Hey thanks for the replies,I will get the "rust" kit this weekend and dying to try the soda effect!!!!!!....such a cool ideas,thanks!!!!!

[Semi Trailer Mechanic]

I like to paint the area/component that'll be rust weathered w/ rust color paint. I'll let that dry then go over it w/ a dull clear coat. While that is still wet I'll take a die-grinder w/ a sand paper drum attatchemnt and some red-brown chalk and grind it so the chalk is being thrown onto the wet clear coat. After a day or so I'll go back over it w/ a clean brush removing excess chalk.

One thing I've noticed that strikes me funny... I've seen people paint the turbos' exhaust turbine housing rust but the rest of the engine looks like it just came of the assembly line it's so clean. The reason these housings rust because they're subjected to high temperatures from thousands of hours of operation in all climates under all kinds of work loads. (From the tractor idling,bobtailing, and pulling a load on level ground to up a mountain). So by the time the housing has burnt off the paint and the bare metal starts to corrode the rest of the engine has weathered too.

[73gmc454]

Welcome back to the hobby, I have some bags of fine ground rusted cast iron I got from Kurt , I coat it dull coat and use the shake and bake method !

[Alfnut]

wish i had a photo of what ive done before, i mixed rust paint with graphite powder and a little flat black to darken it up, depending on how you mix and brush you get spots where there is a little more graphite than other spots and when dry looked like "flaking rust"

[Badluck 13]

Anthony....Thanks for turning me on to "Sophisticated Finishes",I am having a blast with this stuff,I really like how you can "control".....and Tony,I am practicing the soda thing,not quite there yet,~BUT~ I can see where this will be an awesome thing once I get it down a lil' better.....

[clayton]

Here is the soda,I mixed different browns.Paint ,dust let dry and start over.