Imperfections in final piece

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Imperfections in final piece

Author	Message
Shane1985	Shane1985 posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 18, Visits: 175	Hi Guys, After much blood sweat, tears and not giving up, I finally managed to make a Carbon Part which I am half happy with. The only problem is I am finding holes in the cure resin, pin holes and air bubbles as pictured below. I used fast hardener with the usual Epoxy as its only a small piece and allowed for it to degas for 15 minutes after stirring it thoroughly. I ran the infusion through and made sure that the epoxy being pulled through the catch pot side came though for a good while so any aired epoxy was removed. Then clamped off the feed line the the the catch line. Last night was very cold probably about 1 degree but I had the heater in the shed, however when I got checked this morning the heater failed and I had to bring the part to finish curing this morning in front of a heater. Once I demoulded I found the holes and air bubbles. Any Help on how I can prevent this please? Its the second time this has happened. Shane -Carbon Amateur- Never give up! Tags bubbles Pin Holes
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Chris Smith	Chris Smith posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 11, Visits: 436	I also had this problem. After talking to warren we found out the vacuum pump wasn't strong enough and/or the resin is going in too fast. Try clamping the resin side and slow the feed a little. These are the problems I found and after doing all the above I pulled a perfect part. Good luck.
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