Hello, I was invited to this forum by one of the members here asking me if I still had any Si bronze available. I have several thousand lbs of this. It is probably best to ship it flat rate, 60 or so lbs in a 6 mil polythene bag, in the USPS flat rate box well taped up. The current cost for up to 70 lbs is 21.10 at the USPO. It will be $3/lb for 50 lbs and less (which will probably fit in a medium sized flat rate box) and $2.75/lb for 100 lbs or more. Please send me a PM and I will get the material shipped out to you. I plan to ship every Thursday. Check or cash preferred, Zelle also acccepted, and Paypal to lostwaxman at g then mail.com is fine, but please add 2.9% to cover the Paypal fee.