Scottracing, I believe the white product you are referring to is L21218 from Ami-Con (see attached data sheet).  We tried this after Amber Composites was bought out by Tencate and they no longer carry Amber's Amform 200.  The Amform 200 was much better as the Ami-Con product seems to compress more after a couple of cures in the autoclave. 

Does anyone have any sources for Amform 200, or know of any better replacements?  I may look into two-part putties (feel free to recommend any good ones), but was hoping to have a single component solution.




Thank you,

Andrew

I have done some research myself with rtv silicone, the problem is that it expands evenly in any dimension - and that means 

Hi Warren
If you guys are looking for a useful topic to make a instructional video of...making and using silicone intensifiers is something that would really help all of us. I know what they are and what they are made of and what to use them for. But I don't have practical experience or knowledge on step by step procedures. What do the rest of you guys on the forum think????
Thanks
Fred

First time seeing this thread - great write-up, thank you for your clear explanations. Looks useful for some small components I have in mind that wouyld be tough to achieve with vac-bagging.

you dont want to use a large amount of the rubber material as its quite expensive, and only suitable for really complex parts or if you are making a batch. They are really good for making small catach tanks and complex geometry, but for something like a bike frame I would use bladders or soluble cores

HI. the photos does not work. please put up new links so i can see your nice project