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.



Retired - Thank heavens, and still don't have enough time during the day

You didn't use flow media? I just searched in my process datas for some older infusion without mesh at lower temperatures. I found one several years ago. 20cm (8") in about 18:43mins, result was good, but I degassed. Temperature was 21°C.
Without degassing I really would recommend using a flow mesh. My thoughts: in a regular infusion with mesh but without degassing, the degassing mainly happens at the flow front, within the flow media. You can see that. Before the resin enters the actual cloth, most trapped air already left the resin. Without flow media the degassing happens within the cloth (where else should it? There is trapped air, and the resin front is under full vacuum), and not all the gas leaves the part though the flow front.
Btw. : without flow media you certainly don't need a resin break. Most here will disagree, but I don't "believe" in resin breaks even when using a flow media. At least not to get a better finish. That was not the purpurse this technique was invented for.