After reading many helpful recommendations here on OGR (a big thank you), combined with some experimentation and testing, I've made many modifications to stock FasTrack Switches to improve their operational reliability. In addition to a number of other steps that are irrelevant to this question, I've opted to file the switch points on some of my turnouts so that their leading edge has a much finer point than the stock version.
These points are not attracted to a very strong magnet. They do have a plated finish that is now absent from the length of the surface which meets the outside rail, due to the filing. It's been about 4 months since I filed away the plating, and some of the cast metal on some of these points, and so far, there are no signs of oxidation on the bare metal.
1) What is the metallurgical composition for the cast part of FasTrack Switch points (excluding the plating), or more specifically which metal elements are used in making the castings of these points?
2) Do the filed points surfaces need a protective coating (and if so recommendations) to prevent/inhibit the formation of surface oxidation?
The main reason for these questions is, I'm in the process of writing a (hopefully) comprehensive help article detailing how a combination of tweaks to FasTrack Switches, which for me have eliminated points picking and derailments that can sometimes be caused by these switches. Since points filing is one the key alterations, in combination with points bending, straightening, travel extents improvements, and others, I don't want to potentially recommend anything in this possible help guide article that could potentially cause problems later. I'd prefer not to go into the other details of how to improve the operational reliability of FasTrack switches here in this Post. Some may say this has all been covered before, but after reading extensively on this subject, I believe there is more that can be done that hasn't been previously mentioned here in the forum, and the information that has been presented here before on tuning these switches is spread across multiple topics. I'm hoping to put them all together, with some potentially new information.
I respectfully ask that everyone please limit your replies in this topic to discussing answers to the 2 questions asked above. If you have unrelated questions or comments, you're welcome to send me a Private Message or an email (address in my profile).
Thank you, Steve H