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Randy Forbes
Yoda
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In anticipation (cue: Carly Simon...) of putting new wire wheels on my 100/6 2-seater, I bought all four (4) new hubs and K/Os to go along with them. Given my age (55) they should last as long as I own and (am able to) drive the car.
While the new hubs, as supplied by Moss Motors, have what appears to be a zinc coating on them, I elected to use some polymer coatings from Techline (there's a good description on this page, see "An Introduction to <Polymer> Coatings: https://www.techlinecoatings.com/hi-performance/about.us.html ).
Much of this technology transfer was the result of NASA's Space Shuttle Program, and handed down to the private sector during the late 80s-early 90s. I've personally been applying these high performance polymer coatings since the mid-90s with good results.
The rear hubs were lightly sandlasted to etch the surface, then a thin (approximately .0015") coating of TLTD thermal-dispersant was sprayed over their entirety. After application, the hubs are cured for one (1) hour once the part reaches 300*. The rear hubs are now ready to be bolted onto the car.
The front hubs and new rotors were also lightly sandblasted, and two (2) different coatings applied. First, the backside of the hubs, and the mating surface of the rotors where they attach to the hubs were coated with TLTB, a thermal-barrier. The thermal-barrier will resist the transfer of braking heat to the hub and wheel bearings.
After re-masking, the remainder of the front hubs, and all exposed/non-contact surfaces of the rotor were coated with TLTD thermal-dispersant, to assist with radiating the braking heat away from the parts.
Here are some pictures taken during the process:
As received
After sandblasting to prepare the surface for coating
Front hubs/rotors preparing for 1st coating application
After 1st application
Ready for rear hubs & 2nd application to fronts & rotors
In the oven
Post cure cycle
Front hubs reheated/bearing races chilled overnight in the fezzer
Normally, that would be enough for the races to "drop in" but these still required some stern influence to fully seat
Continued (reached picture/link limit per post?)...
While the new hubs, as supplied by Moss Motors, have what appears to be a zinc coating on them, I elected to use some polymer coatings from Techline (there's a good description on this page, see "An Introduction to <Polymer> Coatings: https://www.techlinecoatings.com/hi-performance/about.us.html ).
Much of this technology transfer was the result of NASA's Space Shuttle Program, and handed down to the private sector during the late 80s-early 90s. I've personally been applying these high performance polymer coatings since the mid-90s with good results.
The rear hubs were lightly sandlasted to etch the surface, then a thin (approximately .0015") coating of TLTD thermal-dispersant was sprayed over their entirety. After application, the hubs are cured for one (1) hour once the part reaches 300*. The rear hubs are now ready to be bolted onto the car.
The front hubs and new rotors were also lightly sandblasted, and two (2) different coatings applied. First, the backside of the hubs, and the mating surface of the rotors where they attach to the hubs were coated with TLTB, a thermal-barrier. The thermal-barrier will resist the transfer of braking heat to the hub and wheel bearings.
After re-masking, the remainder of the front hubs, and all exposed/non-contact surfaces of the rotor were coated with TLTD thermal-dispersant, to assist with radiating the braking heat away from the parts.
Here are some pictures taken during the process:
As received
After sandblasting to prepare the surface for coating
Front hubs/rotors preparing for 1st coating application
After 1st application
Ready for rear hubs & 2nd application to fronts & rotors
In the oven
Post cure cycle
Front hubs reheated/bearing races chilled overnight in the fezzer
Normally, that would be enough for the races to "drop in" but these still required some stern influence to fully seat
Continued (reached picture/link limit per post?)...
