RTV 732 rubber sealant.  I globed RTV in trailing edges of the stiffeners in the elevators during their construction.  My understanding for this is that the trailing edges are very thin and putting this sealant in their bonds the two stiffeners together and prevents vibration during flight.  Sounds reasonable to me.  I expect to be using RTV during the wing kit as well, so I stocked up when I made my last order to Aircraft Spruce.  This stuff is around $6.50/tube.

The dreaded "black death" tank sealant.  My only experience with this stuff was while working on the trailing edge of the rudder.  Just that little bit was messy and would be easy to get out of control.  Sealing the tanks ought to be interesting.  Of course, after I received this, I see that Van's now sells pre-assembled fuel tanks.  I am glad I am doing my own anyway as I am using capacitance fuel senders and will be installing flop tubes in both tanks.  Besides, I like being able to say, yep, I built it...

These rivets are used to replace drilled out rivets where the hole may have been oversized.  Typically the head on these rivets is smaller than the normal AN426 rivet, so an oversized AD3 hole can be opened to an AD4 size and the head will be similar to the original rivet.  I have been lucky on all the rivets I have drilled out, but I decided I better get some OOPS RIVETS before my luck runs out (OOPS Rivets is actually what Van's calls them).

I didn't like the fuel selector that comes standard with the kit, so I upgraded the fuel selector to the lift and turn model.  This has a very nice feel to it.  I am able to switch between left and right tanks without lifting the knob.  However, the knob needs to be lifted to rotate the fuel valve to the OFF position.  (ANDAIR's DESCRIPTION:  Lifetime materials, compatible with all fuels.  The FS20x20x3 is a 3 way duplex fuel selector and allows for two fuel lines to be switched simultaneously, this means that the return fuel from the engines fuel injector/manifold block can be returned to the same tank from which it was drawn. 

The valve is configured with a dual valve with 3/8 inch port for fuel supply and 1/4 inch port for fuel return to the selected tank.  This return feature will prevent overfilling a fuel tank (should I have had a single return line to a predetermined tank).  I am planning on a fuel injected engine which will require a return line.

This fuel selector valve is made by Andair.  They have a really decent web site explaining their different fuel selector configurations.

http://www.andair.co.uk

I don't know at this stage if I am going to do any recreational aerobatics, however, I think that I am going to configure the plane so that I can if I want to.  Therefore, I ordered two flop tubes for my fuel pickup.  (VAN'S DESCRIPTION:  If you intend to perform "sustained" inverted flight in your RV then you will need to purchase and install a "flop tube" in at least one of the fuel tanks).  I am not sure what they term as "sustained" 1 sec, 5 sec, 1 min, etc.  Right side up or upside down, the engine should get fuel now and I don't have to worry about any placards telling me what tank I need to select for aerobatics.