I did some more research and found that RTV510, 567, 577, 655 and 656 would do the trick. Same for the Dow Corning stuff. But no luck Bud... sorry. All those sealants are not on our Preferred Parts List within the Company. Thus they are not ordered, nor can I request them.
I even requested samples from both suppliers... and both requests were denied. First time that ever happened to me.
Thank you for trying.I really appreciate it.
And Thanks for the research.I knew there were others , but well, momentive's site is not great....the data is all there , it's just finding it.
I actually talked to someone at momentive's silicones division yesterday.
The first thing he said after I explained what I needed , was ; "None of our silicones go below -60 c".
After I told him all about his company's low temp silicones , we got down to the nitty-gritty.
He confirmed that 90% of the 2-part silicones are available in 1 gallon lots only.
He then told me pretty much the only way I was going to get a 1 pint size was by sample.He then told me something you have already just found out.They are getting reallllly stingey with the samples.
Sooo.......I guess it's down to begging via email , even tho I'm totally willing to buy it.
I am going to look for a calgary division of momentive tho....GE has many offices here , I should be able to.
My glass is in town !! I'll be picking it up sometime in the next couple days.
It's usually rather simple for me to request some. Fill the sample form, sometimes answer a phone call from the local rep, then receive said sample within a few days... Actually I did receive a visit today from our GE rep; I tried to explain roughly what were your plans; I did show him your thread - he think you're nuts. But he also said that it's wonderful how computer builders are pushing the envelope.
As for the samples, it's a no-go due to the cost: $220 each 2-part tube (330ml)... and samples cannot be bought.
Those silicones are all part of the same family; they should all work. Yes, we do have a Materials and Processes Expert at work - he's specialised in adhesives too. Unfortunately he's out on Holidays for 3 weeks... but still shoot me a PM with your questions and as soon as he's back, I'll fire away.
From the research I did over at Dow, I found that their silicones are good down to -65C.
Yea the Dow Corning site is the same as the Momentive one.If you don't know exactly what you are looking for , you wont find esoteric stuff....The link you posted about the DC 3-6121 definitly shows an operating temp of -80 c .
Now Dow Corning lists themselves as 'Silicone Experts' . I'd bet 5$ right now they have a competing material.I've email'd em again.