Now that our tracks are assembled and have been test fitted to the model you're ready to put some color on them.
You can paint the tracks the same as you would any other tracks if you like but I like to blacken them and use oils for washes. Either way you need to degrease them first using any dish washing liquid and hot water from the tap. A tooth brush is great to do the scrubbing.
After a good going over,rinse them real well with hot water to remove any soap residue and air dry or even use a hair drier to speed thing along. When dry do your thing.
This is the way I color my tracks:
Blacken-It is the most readily available but since i've already got the pictures that show Back4Tracks i'll use that. Black4Tracks is a iffy product to order now so be advised but I hear there is another NEW product available now too but I haven't tried it yet.
Pour enough liquid in a container to cover the tracks. The tracks will start to blacken pretty quickly and after they've been in there for a short while I take them out and scrub them down with the tooth brush to make sure all the nooks are filled with the chemical and then place them back in the soup to blacken a little more.
When it looks like the process has done about all it's going to, I go over the tracks with the tooth brush again then I place them in a container that has a mixture of Baking Soda and water to neutralize the corrosive chemicals in the product. (one glass of water to a level teaspoon of baking soda)
Let the tracks soak for a little while then I scrub the tracks again to make sure the nooks are covered and return them back to the soda water one more time.
Rinse with hot water again to remove any soda and let dry. At this point the tracks will look like this:
When dry I make up a wash of Burnt Sienna oil and Turpenoid(Blue lable),this will give the tracks a rust background color. A wash is a real thin color mixture so apply as much as you think you need to suit your taste. I let this coating dry for a few hours and then mix up another wash using Raw Umber oil. The raw umber will mute a lot of the red in the Sienna so apply the umber wash till it looks right to you.
Something like this is what you should end up with:
Now all that's left to do after the oil washes have dried it to take some fine sand paper and go over the high spots of the tracks to show contact with the ground or road wheels and sprockets.
Pigment can be used to taste. What ever process you chose to use be sure and follow any safety warning that apply.
I hope my way helps to make the job easier for you.