Expanding silicone core

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Expanding silicone core

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Matthieu Libeert	Matthieu Libeert posted 12 Years Ago HOT Topic Details
Group: Forum Members Posts: 955, Visits: 3.4K	Hi, I have a question, I've been thinking about it for a long time and it has been on the forum yet, but not with the best results of information. So I'm planning to make some tests with some silicone as an expanding core to get a nice outer finish with carbonfiber. I plan to make a testsample of a tube made out of Carbonfiber: - I plan to use an existing tube of metal - Cut it in halve - add some thickness (thickness of the carbonfiber, so not much) on the inside - Put halves back together - Fill the tube with silicone - remove the silicone from the mould and remove thickness added before - wrap wetted out carbon around the silicone - Put it in an oven and hope for it to expand. My question is, which silicone is expanding? mostly they make silicones that DONT expand because you dont want it to expand in most applications. is it 1K silicone you'd better use or 2K silicone? anyone has some experience with this? I know about the blatter technique and so on, and thats not really what i'm looking for. Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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Jack.Strong	Jack.Strong posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 52, Visits: 549	Really interested in seeing how this goes Matthieu. Keep the thread updated.
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Matthieu Libeert	Matthieu Libeert posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	I will, but first I need to know which silicone to use and how much it will expand Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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Jack.Strong	Jack.Strong posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 52, Visits: 549	Ive had a look as I am thinking of using the silicone mould for a plug. Would the silicone stick to the curing composite ?
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Matthieu Libeert	Matthieu Libeert posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	I guess not...Silicone is normaly selfreleasing on most types of resins... I it would be a problem I would add a selfreleasing film around the core, with some space to let it expand with the silicone http://www.talkcomposites.com/1697/Thermal-compression-moulding this is the post that sticked to my mind but havent found any answer on the silicone... I've send him an email yesterday but no answer yet... Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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neilb	neilb posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 107, Visits: 503	i had a quick look on google and found a few but the temps at which it expanded at were quite high
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prsw	prsw posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 112, Visits: 1K	Matthieu, I am looking in to this here in Sweden, hope to get back to you in a few days. I also need it for some projects coming up. BST carbon motorcycle wheels are made with this method. http://motoform.blogspot.se
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Matthieu Libeert	Matthieu Libeert posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	thanks prsw, would be great! Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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prsw	prsw posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 112, Visits: 1K	matthieutje65 (05/02/2013) thanks prsw, would be great! update, nothing found yet, one company sent me to this: http://www.dowcorning.com/applications/search/default.aspx?Ne=4294965469&N=4294949775&DCCD=PRODUCT&WT.svl=DC_home6&DCCT=PRODUCT haven't had time to look trough it yet, feel free to do it.. The intended use could be for fire stopping seal in buildings, around pipes etc, the silicone expands in heat and seals gaps and stops fire from spreading. http://motoform.blogspot.se Edited 12 Years Ago by prsw
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neilb	neilb posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 107, Visits: 503	http://www.menards.com/main/paint/caulking-sealants/silicone-caulk/white-lightning-flamebuster-intumescent-expanding-silicone-sealant/p-1496261.htm this one i found on google Edited 12 Years Ago by neilb
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