Blued or scorched TI mids - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 5 (permalink) Old 07-12-2013, 11:19 PM Thread Starter
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Blued or scorched TI mids

Not planning on going at my LB's with a torch anytime soon but I was wondering.... Has anyone ever tried to blue a set of TI mids??
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post #2 of 5 (permalink) Old 07-12-2013, 11:45 PM
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It's a matter of temperature.

Titanium starts to color around 600-700 degrees F.

When you first apply heat you'll first see moisture burn away and then a slightly duller layer of oxide will form. keep the heat even over the surface and not in a specific spot, and the titanium will actually start turning red if you are using a propane torch with constant heat on. When it starts turning red just pull the flame away long enough so you can watch the oxidation. The material needs air to actually oxidize, so don't just hold the flame on it if it's turning red. As you get towards higher temperature colors, you will find that the material goes red quicker and quicker and so you need to be more careful with your flame.

The first coloration will start to be a straw yellow color. If you sweep the torch over it evenly and allow it to continue to oxidize, it will turn into more of a gold and bronze, then it will break into the purple zone. After purple it will turn blue, then the blue will pull away to reveal a bright cyan. The cyan will then turn into gold, and the gold will again revert to a cyanish color that then makes way for magenta and finally green.

It takes reasonably good control of your heat to get colors above purple and blue to be consistent, and it's hard to get any consistency with the higher-order colors like magenta and green.

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post #3 of 5 (permalink) Old 07-12-2013, 11:51 PM
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So is this done with any flame and by that I mean fuel source. I am well versed in oxy acetylene welding and the use of a propylene torch too.....love being a fooking pyro.

I guess my main reasoning, does the titanium have different chemical reactions (colors) caused by the different fuels? (Or is it heat as you suggested above??)

grape...I love the look. To me it is an added touch of exotic you just don't see a lot of



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post #4 of 5 (permalink) Old 07-12-2013, 11:59 PM
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Originally Posted by madbuyer View Post
So is this done with any flame and by that I mean fuel source. I am well versed in oxy acetylene welding and the use of a propylene torch too.....love being a fooking pyro.

I guess my main reasoning, does the titanium have different chemical reactions (colors) caused by the different fuels? (Or is it heat as you suggested above??)

grape...I love the look. To me it is an added touch of exotic you just don't see a lot of
Madbuyer, get a piece of Ti and practice on it.
Dad and I used both torches. Interesting to play with it.
Heat is what colors it, heat control even more so.
I love my Ethos mid pipes as they feature every color on the upper and lower bends.


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post #5 of 5 (permalink) Old 07-13-2013, 12:02 AM
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Yep, may have to do some testing....

Ethos are top notch quality in my book.

I wished Hamaguchi mad an RC exhaust......pure bike porn



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