Tungsten Powder | High Density | Over 99.9% Purity | 0.5 lb | Perfect for Adding Weight to Anything: Golf Clubs, Fly Tying, Pinewood Derby Cars

this is really great stuff for swing weighting clubs.Absolutely the best I ever have used and its at a much better price than the Golfworks.:-)J

I've been assembing golf iron sets for myself and others over 40 years and this tungsten weight product has been the best solution to dial in golf club swing weight adjustments. If I can just add tip weights I will, but it's nice to get golf clubs iron sets spot on within a swing weight point throughout the whole set. I weigh all components before assembly, blueprint all assemblies after completion then sometimes I need additional weight to balance the clubs in a set. This powder is easy to use, non toxic, stays glued in and I've never had a loose rattle I need to redo.

Pros: Came shipped well. Package was (inside to outside) in plastic tub, wrapped in self-sealing bag, wrapped in bubblewrap. Had a little thank you card from Sanew LLC, New York.Cons: Seems to be C130 Mesh -60/+200 with "Apparent Density" of only 100-140 g/in^3 (6.1-8.5 g/cc). It's a fairly fine powder.Suggestion:I was hoping for Granulated Tungsten with slightly higher Apparent Density and coarser granules that won't leak and get everywhere. Would suggest manufacturer consider a line of coarse tungsten powder with higher apparent density of at least (1.3x) greater. In the GW-3/8 8 Mesh -3/8 / +8 range.If you are trying to make a T2 you will cap out at 3.55 or 3.85 (design dependent) due to limited volume. Seal with RTV silicone.Important note:Powders have a "volumetric efficiency". Even though this is elemental tungsten, air gaps between particles means it is not (and cannot be) 19.3 g/cc. You can use tap it with a stick to settle and increase it (Tap Density), but it is not much more (10.0-12.5 g/cc per description).

Probably not the use this product was designed for, but, it works great for adding weight exactly where it is needed on Pinewood Derby Cars.None of the other cars were even close to me at the finish line.The only problem I experienced was that my car was so much faster, it flew off the track after the finish line after every race, whereas all the other cars easily stopped in the provided shutdown area and I was doing my best to catch my car as it flew through the air.

Mix this with an epoxy and you get a great weight that you can add to anything.Doing this will make the weight more dense than a tungsten putty and it's a permanent solution. I use it for my pistol and it lasted 1000+ rounds without an kssue