Frances, I always use plasticine for two part moulds, some always sticks to the master no matter what release you use. I'm in the UK as well, once one half of...
I'm looking for a US supplier of lead-free white metal alloys in small quanities, 5 - 10 lbs. Does anyone have a list. Right now I'm paying $21 a lb. from...
... I read, somewhere, that you should use threaded Teflon rod. Problem is finding a source for that. The Teflon rod can handle the heat and can then be backed...
I was wondering whether anyone on this group had made Sulpho Platic (If you want to know more just search Google for "sulpho plastic"). If you have, what were...
... think). ... patterns ... produce. Thats ... planning on using ... about 90% ... scale window ... metal. ... Service. ... Hi, I'm also building a spin...
... mold. ... around ... of ... side. ... thanplastercine? ... I usually paint the original to make it release easier from the mold and set it into Super...
... Took the words right off of my keyboard. Let that Vaseline/naptha mix run down the sides, all around the edges of the part. I might add one more step to...
Walt, check out Ney metals. They're on the Web and Ron from their outfit is on this list. Good folks and good service. Terry Wellman St. Charles, IL [Non-text...
Hi Guys, I make RTV molds for my 12" spinner on a consistent basis. You can do it with RTV! You need to insure that you have a rubber with a good durometer...
if you're using a tin-based RTV: bake the completed mold halves in a convection oven, with a tray of water, for about 4 hours, and let cool before beginning...
... do it with RTV! You need to insure that you have a rubber with a good durometer such as Dow Corning M2 or something similar. If you're looking to do low...
If your pieces come out of the mold, do spray your release on both the cavity and the part, especially the cavity, then you will be able to peel the thin skin...
Hi Walt, I use Dow Corning M2 which is a platinum system. It's a much harder rubber than the Dow Corning HS II series that you've described as getting from...
... harder rubber than the Dow Corning HS II series that you've described as getting from Alumilite. Alumilite can supply you with M2 also. It cures faster...
It'd be worth trying: 1. A nylon bolt (easier to find) 2. A piece of steel or brass thread, coated with mold release. Be aware that the hole in a nut is NOT...
... Hey, another RPer - I'm using a small CNC mill to do RP type stuff. 8c) Annie -- Annie ==================== Need teeny tiny motors? HOn30 cars and such? ...
Annie, I think that you're right in the vinyl category. However, a Shore A 70 type of resin might do the trick too. Terry Wellman St. Charles, IL [Non-text...
I'm trying something new (for me). My "new" baby, a `77 VW Bus named "Giacomo" (guess the reference?) is in need of a number of cast reproduction items, and...
... However, a Shore A 70 type of resin might do the trick too. Really? Where'd I get a rubbery resin like this? And can anybody point me towards tips on...
You may have less problems than you think. I recently tried to use 5 minute RTV to repair a mold. The gate I'd cut needed moved desperately, so I filled the...
From: <anniepoo@...> ... needed moved desperately, so I filled the old gate with the 5 minute stuff. It fell out after it set. Thanks. I've taken to...
Hi Group, I'm looking for the best castable material to use to seal against hot petroleum based oil (about 300 deg F) but be around a Shore A 90 durometer. I...
... They do sell O ring material in continuous lengths, with a special glue. Before you try to cast one, get some of the literature on O rings and read it. I...
Hi together, I want ask you what you take to drill vertical air canals into a RTV – Mold. I often see by tin miniatures that horizontal air canals were cut...
try a sharpened hollow tube, brass is good, or copper at a pinch. just push it through and you have a vent, but you wont want a big diamiter by the sounds of...
Wondering if anyone is using alloy 281 white metal for casting minatures and if so some particulars? What basically are you casting? What mold material are you...
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