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Here's the graphite we use:
Maximum Velocity Premium Pinewood Car Graphite Powder | Easy Application tip for Derby Car Wheels & Axles | Graphite Lubricant for Pine Derby Car Kits a.co/d/du8KRnH
I was a pretty experienced pinewood derby car builder (5 kids + an adult category for many years). Graphite is definitely your friend! Lots of good advice already shared here!
$19 for more fine grind (44micron) graphite than you can use in a lifetime. The label says mix 10% by volume to mixed epoxy for "low-friction exterior coatings with increased scuff resistance and durability". Their words not mine. Also can create it's own static charge while mixing and an inhalation hazzard!
I have two main types of graphite, one from an online shop on TradeMe and one from Hobby City. Both work equally well.
Very intrigued by the iso idea. Would make getting the graphite down into the wheel a bit easier I suspect. I can see some serious testing in my future.
I also have a can of some spray from bunnings that also works ok for cars that just need a bit of a boost - normally I only use it for cars when testing my track if they're a bit slow etc
Great discussion! I've been using three types that have already been mentioned: XLR8, Maximum Velocity, and Hob-E-Lube.
I generally start with Hob-E-Lube on cars while wheel farming, then switch to the others with the long applicators after assembly to get into the wheel hubs easier.
I'm not really convinced that one brand is really better than the other. I think the "Secrete Sauce" is just having a great set of wheels.
It just occurs to me I should maybe link to the video I mentioned earlier IRT hardware store/industrial grade graphite... www.youtube.com/watch?v=kZTjRLwTZYQ
Just a follow up ladies and gentlemen. I bought some extra fine graphite from Ebay and also some isopropal alcohol (?)
Mixed the fine with the course, also made up a 2-1 ratio with the alcohol and ended up testing 3 different mixes. The IPA 2-1 worked a treat! All 3 cars were exactly the same model with similar 'stock' speed. The IPA mix was consistently quicker and the mixed blend was the slowest.
I've sent 3 cars to the 35g tournament (Flips Racing) with all 3 different graphite tests so it will be interesting to see how they go. (The escort has the IPA, the Ford has the ultra fine and the fantasy has the blend of course/fine. Watch this space....
blood, sweat, and tears.
Awesome thanks for the update. I just made a 2:1 ipa/graphite literally just now and I'm looking forward to trying it out.
The graphite i use is jsut the standard pinewood derby graphite you can get at hobby lobby,I usually put a bit on the axel that sticks out of the wheel a bit then let it sit for about 5-10 minutes and then repeat with the other side,I've been also getting used to sanding my wheels with sandpaper,i roll my car on it until all wheels have been properly sanded