Karl;
I have a product called 12/34. It is a 14 OZ. spray can, and is the most amazing product I have ever used in my shop. It removes moisture, prevents rust, penetrates and lubricates, hence the name 12/34. More importantly, when applied to electrical and electronic equipment, it protects all circuits, contacts and switches. It will not interfere with the circuits or operations of the equipment.
It is also harmless to paint, plastics, rubber or fabrics. It dries wet ignitions and contains no silicon.
It costs $14 per can, so it's not cheap. But if you look at per cost application, you're looking at 1 or 2 cents per use.
So sure am I of this products capabilities, I will not only refund your $14, I will pay your return shipping if not satisfied. I will also donate a portion of each can sold to support Landracing.com.
John