In case this will be helpful, or maybe you can learn from my mistakes I wanted to weigh down some very light Marklin 2 axle cars. They tend to jump the rails if more than a couple are in the train. I bought the Tungsten Putty and thought it was great, really sticky stuff. I proceeded to take the easy way out and simply stuck it to the bottom of the cars. Bad idea! When I went to retrieve a few from my storage the putty had run and glued then to my display, the first car came apart in my hand leaving the chassis glued to the surface! I still can't believe how lucky I got, actually finding the spring and knuckle. And it was not much fun cleaning all the cars. Anywhoo, Tungsten Putty will run over time, it has to be contained for our use!
I prefer to use small tungsten weights purchased from Pinewood Derby sites. Glued in place with "Tacky" glue, they stay put. Just search on pinewood-derby-tungsten-weights
i use Tungsten Powder sold for weighting golf clubs Fill the area needed and then carefully wet with CA glue kev
For best weight to volume ratio solid tungsten is ideal followed by lead (even gold is good ), then the rest like powdered tungsten or putty. For solid tungsten you can get tungsten welding rods of different diameters. you can score the tungsten rod and break it to size.
I've used tungsten putty for my custom Little Joe chassis. I had created weight wells for whatever weight options I would end up using as I was still experimenting. With the putty I noticed within a week that it was oozing and needed to be contained so I created a shell on top of it with glue to make it stay put. That seemed to work. My plan was to fill the weight wells with lead shot then let the tungsten putty fill in the gaps (to save costs as tungsten is pricey) This week I purchased some pinewood derby tungsten weights per suggestion above so instead of lead shot I may use those for the bulk then fill in gaps with putty. Those derby weights are nice because they come in different sizes. I'll still need to do the glue "cap" though as putty's gonna ooze. -Mike
Test running Port Shaughty tonight (First show is only five weeks away) and using the two 3D printed streetcars (Stonysmith) that run on Rokuhan Shorty chassis https://www.shapeways.com/product/HG6M5TVYY/streetcar-ii-zscale?optionId=299275959&li=shops Now these are very light but there is a big void at each end where weight can be added So I cut a a couple of lead weights from a roll of lead flashing, dropped them into the void and then filled the resulting gaps with Tungsten powder until it was flush and then drizzled ACC super glue into the powder until it set weight of bare bodyshell 2 grams wieght after 15 grams! and it runs faultlessly as a result I'll try and photograph the procedure when I do the green one Going to add weight to Ivans' USRA Dock tanks in the side tanks. These run on Marklin BR 89 chassis and need all the weight they can get More soon on Port Shaughty thread soon Kev
