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the coating that's on the trunk

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of the dragon the nice white coating

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that you see as it comes into the dock

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with

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space station that coating was qualified

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on the missy one and two flights and

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missy stands for materials on

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international space station experiment

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and it was a group project experiment

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with

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the air force research lab the naval

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research lab

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langley research center glenn research

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center and here at marshall

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some big companies like lockheed and

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boeing and then little companies like

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alien science which developed this

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coating

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had already used for 30 years

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for spacecraft but as we get more and

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more powerful solar rays

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we have to worry more about spacecraft

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charging

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and in order to to solve that problem

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then we look for electrically conductive

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coatings

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and aelion developed this one and then

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we flew it for four years on missy one

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and two

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were able to qualify it for space while

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we can simulate different aspects of the

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space environment here on earth we

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really can't get

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the synergistic effects of the uv

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radiation the thermal cycling

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everything all together so the real

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environment

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is the best one to test in and so we had

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these samples in space for four years

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and we were able to bring them back and

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analyze them

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and look at what worked and what didn't

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work so we had some that stayed just as

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white

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after four years as they were in the

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very beginning and then we had some

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that turned a nice chocolate brown due

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to their uv radiation

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a coating not only protects the

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underlying metal from corrosion while

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it's on earth and

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sitting in the salt air at the cape

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waiting for launch it also

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passively controls what temperature the

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inside

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of the cabin would be so we want to make

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it comfortable for the astronauts we

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don't want it too hot or too cold and we

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want to know

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that that coating will stay the same

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throughout

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the whole space flight and not change

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over time

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we do have one coating that was used for

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the curiosity rover we

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also looked at some different coatings

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for lunar missions

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for lagrangian point missions and then