Discussion in 'Composites' started by Toobuilder, Mar 12, 2019.
Here's one half.
Looks like a flouresent light fixture cover.
Got the other half off the plug and clamped together for a trial fit.
Just to be clear, the pipes will be brought together in operation. Working on the plug for the inlet belmouth.
I recently made a new carbon fibre sump to replace my heavy steel one by using this resin :EPIKOTE™ Resin MGS™ RIMR 935 and
EPIKURE™ Curing Agent MGS™ RIMH 936/937.
It's made by Hexion which I belive is available in the U. S.
I like it, not too viscous and has an HDT of 130 deg. Celcius or 270 deg. F. I cured it in the kitchen oven for a few hours ramping up slowly. Even at 130 deg it still retains its shape well.
MGS resins were among those we planned to evaluate for some upcoming projects. They are available through Hexion distributors in theory, but with prices running a little over $400 per gallon delivered, not in practice. We have turned our attention to domestic products instead.
BTW, for anyone with lesser post-cure needs, I measured the interior of an old Honda Accord at 140F on a warm sunny day in the Boston area. Cars in the sun are also a great way to de-crystallize your unused epoxy.
I have used Sika Biresin CR122 a lot. Tg of close to 120C, or good enough for black parts in the hottest dessert.
Sika Biresin CR172 has a great trackrecord firewall forward in aerospace applictions. Tg of 175 C.
"MP" goes to 238C. No experience but sounds awesome (https://shop1.r-g.de/en/art/125155)
In imperial units thats:
It took way too long before that penny dropped ;-)
Yes, agreed, very expensive. The salesman has been trying to sell me this brand for years for making my carbon spars but it's just too dear. For the high temperature stuff it worked out well as I only bought a couple of litres. I got a sump and engine cowl out of it.
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