By Capt Rouge - 10/26/2017 9:26:15 AM
I have just encountered a problem that I am sure has been answered many times before but somehow a search in the forum brings back nothing. oops Apple iMac posted only part of the question. I have just produced a small curvy part and have a fairly bad case of insufficient resin penetration. The Vacuum was perfect, held for 12 hours before infusion and perfect afterwards. My suspicion is that the IN2 resin was not warm enough, it was below 20C and I used an electric blanket after infusion to bring the temperature up. I noticed on infusion a lot of de-gassing going on which settled after about an hour. Is it possible the resin was too viscous for the gas to be extracted fully and therefore prevent full resin take up. On the course we de-gassed and this gave a marvellous result. If a higher temperature can be achieved i.e. warming mould and resin up first what would be a good temperature to ensure a better penetration. I don't really want to have to buy a de-gassing setup if it can be avoided.
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By Capt Rouge - 10/26/2017 4:28:21 PM
Good answer! A good lesson in fluidics I think. So combined with a less viscous resin as well means that the resin with an insignificant pressure difference won’t actually de-gas. All makes a lot of sense. I have quite a lot of small parts to make as well, so will get this correct one way or another. Thanks very much.
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