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what is wrong with this, air pockets on a flat surface with tight seal...
what is wrong with this, air pockets on a flat surface with tight seal
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what is wrong with this, air pockets on a flat surface with tight seal
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koko
koko
posted 11 Years Ago
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Good day, vacuum infused a hood today. using vinyl ester resin. Top it with 1 layer of carbon 2x2 twill 5.7oz mat. Reinforcement of cm300 fiberglass mat, doubled it in some parts for extra strength. I used the usual tools peel ply, infusion spiral and infusion mesh same in the tutorial video. I had a tight seal on the bag. No air drops or leaks. Infusion went well.
Had it dried till the next day. After pulling the product from the mold. I had some air pockets on the carbon. Looks like resin starvation to me. But in my peel ply, resin is all over and had some excess. Can you guys access this problem. I will be happy to supply more information
I have attached the following photos for your reference:
-carbon part with air pockets
-back of the carbon parts with air pockets
-peel ply with excess resin on top of the spot where there is air pockets
Thank you!
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koko
koko
posted 11 Years Ago
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Thank you dravis, I'm working on a new part following the suggestions. will give a feedback after.
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what is wrong with this, air pockets on a flat surface with tight seal
koko
-
11 Years Ago
If the bag is good, then allow a bit more resin in. Alternatively, slow the infusion down to give...
Warren (Staff)
-
11 Years Ago
I agree with Warren, Had the same problem, slowing down the feed solved the problem.
muxiamandy
-
11 Years Ago
When the resin enters the infusion mesh its fast during the 1st half, after the 2nd half the resin...
koko
-
11 Years Ago
Hi Warren, thank you for the reply. I have given the resin enough time to flow thru. Did you see my...
koko
-
11 Years Ago
Only partially open the line clamp on the resin feed. That throttles it.
Warren (Staff)
-
11 Years Ago
To be honest, I don't think the issue is air. I think the issue is you are using vinyl ester resin....
Hanaldo
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11 Years Ago
I had this happen when it was a very hot day, resin over the entire peal ply but hadn't soaked...
andygtt
-
11 Years Ago
Thank you with your comments. This also happened in a small part (side mirror) that I was doing. I...
koko
-
11 Years Ago
Hi koko ... Did you use GC50 as gelcoat on these parts too? See your other thread on "clouding of...
Dravis
-
11 Years Ago
Thank you dravis, I'm working on a new part following the suggestions. will give a feedback after....
koko
-
11 Years Ago
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