Viaduct patterns and molds for 1:32 garden railroad.

[machiningfool]

Today I ordered the 74-20 urethane from BITY mold supply and was happy to find out when ordering 120 lbs. of urethane, I could save some money, so instead of 1200., I am paying only 760. delivered, so quite a savings. The only problem is that the containers are in 5 gal. containers and I will have to transfer the urethane into gallon bottles, for easier pouring, oh well. Still working on the design of the arches and I am coming along pretty good, I think I have it licked. I will add some pictures when I get a little further along in the build. I forgot to tell you. You can probably see some sealing of the column molds with silicone and that is necessary so that the urethane does not leak out until it cures, very important. Once the urethane part of the molds are complete, it is not necessary to do any more sealing when the concrete is being poured into the molds. Bob.