Resin infusion, help evaluating the result.


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Ronny
Ronny
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Hi
The more i read the more i get confused about the proper way to infuse.
EC tutorial says as soon as resin has reached the catchpot you should shut off the resin feed and 10 seconds later shut off the resin exit.

After doing this i noticed lots of airbubbles in the mould, and both resin inlet and exit hose was "bubbling" with air.
I had full vacuum -30 when i shut the lines, and the morning after the gauge read -28, so there was a tiny leak somewhere.
(maybe because of changes in the room temperature?)

Anyways the results are seen here:
http://imgur.com/Q3HyxCr
http://imgur.com/aUaG0MA

Looks to me as its resin starved, and the bubbles i observed in the mould during cure has probably caused alot of problems.
Should i leave the resinfeed on for a longer time? til i only observe pure resin and no air in the resin exit?
Any other advice?

Layers were 4x220g, peel-ply and infusion mesh.

Also after peeling of the peel-ply it leaves a really "dry" surface, is this surface strong or should i coat it with a layer of resin?
Strengt is the primary concern on this part, not looks.
http://imgur.com/1hlbns1
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Ronny
Ronny
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Thanks guys, ill try these advices on my next attempt.

To be continued
ChrisR
ChrisR
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It's not just a leak thats the problem there, you have an inordinate amount of bridging going on there. Work more on your layup technique to ensure no bridging in either the surface or internal layers.

Where you have a bridge the resin will take the path of least resistance and flow down the void rather than flowing through the fabric which has a higher resistance to flow.  
GO

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