Using RTV Molds For Creating Scratch-Built Models
July 22, 2009 by Rick Brock
Filed under Freight Car Tips, Locomotives Tips, Passenger Car Tips
RTV (Room Temperature Vulcanized) Rubber molds are simple to make and can allow you to cast several identical detail castings for your scratchbuilt models. RTV Rubber is a two-part mixture made by Dow-Corning. It comes in various styles. I find 3110 the easiest to use because it does not require an expensive vacuum pump to decompress air bubbles.
