i ordered mine here from mutr. ignore their posted shipping rates. qtc's weigh nothing, actual shipping charge for 70 QTC's was around $4 to NY. was just over a week for shipping. (70 QTC's covers their minimum online purchase requirements..i think min purchase was $17 after conversion, total cost with shipping was 21$).
Just an FYI: I contacted Peratech (they make QTC) and their answers to my inquiries were no, no, and no. Also, QTC is patented by them and "not available anywhere" for retail sale. So, I don't know what is being sold on the net or how long it will be available. However, Peratech will be happy to sell you a technology license for 120k don't forget to tack on engineering and manufacturing.
I do know that other conductive foams exist, so maybe the little squares we can buy are not actually QTC?
Well Bummers; the QTC I ordered was not in stock (even though they told me it was). SO, "there is a delay". We all know what that means. . . Sorry guys. I will let you know if the situation resolves. . . Shelby
Apparently this material does not like being subject to side loads when used with a twisty. I think we machinists will have to come up with a very thin device that does not turn or twist when pressure is being applied. Not difficult but the thinner the better.
Hello all, I received some QTC yesterday. It was surprising to me as I thought it wasn't in stock and wasn't coming! So, I'm thinking that I will send a couple of pieces to archer and to beamhead and then they can test it and give the details as they see fit. I don't want to be sending out crappy stuff to people. And, other than to stick it in a few of my lights, I don't know how to test it. So, after we hear from them re: the quality of this stuff, I will be open to sending it out to more! I think there are 100 pieces. . .
I hope it is good stuff. I'm going to play with it later today myself!