removing/stopping defects and strengthen/reinforcement of a part


removing/stopping defects and strengthen/reinforcement of a part
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Warren
Warren
Warren
posted 13 Years Ago HOT
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Id say try degassing the resin under vacuum before infusing it to elimate the possibility of it being resin.  might be because its colder at the moment that the mixed resin is thicker than normal meaning it doest degas naturally as well as normally.
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Kevin-Lee
Kevin-Lee
Kevin-Lee
posted 13 Years Ago HOT
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Looks Fantastic mate!

...just those last few bubbles to sort out and I think you could have it perfected... Smile
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ARSOUILLERB26
ARSOUILLERB26
ARSOUILLERB26
posted 13 Years Ago HOT
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Hey Joe, I think I'm not the only frenchy here, isn't it? Smile
When you want to share an "apéro" together 

A LA TIENNE !! BigGrin

So for the degassing, it was not done with the catch pot because the 

resin container wasn't big enough, I just waited 10 min (it stayed a 

really few bubbles but only in surface and the aspiration was of course 

deeper... but this bubbles are so tiny that it s possible I have not 

seen them). Next time I will do it inside the catch pot, in 2 times if 

necessary.

For temperature, I live in south of France so it could be worst Wink The 

ambiant temperature was below 20° but the resin was stored inside a 

heated tent at 24/25° but I'll try higher storage temperatures and same 

thing for the working place.

To Matt: thank you for the compliments, That's right the blue carbon 

looks amazing in the sun. I'm really hurry so see it cutted and 

varnished. 

So I saw where exactly was the bubbles and they are in every corners/edge especially at the resin admission side (strange, I thought it would be on the vaccum side)

Do you think it's possible it came from the mould surface? Not enough smooth which let place for air between the mould and the carbone layer?

And excuse me Matt for repeating my answer but english is not my main language (so I hope you haven't difficulties to understand me ^^) so, during my infusion, if I see any bubbles (moving for extraction), I let the both vaccum and resin line open until I don't see them any more. It doesn't matter the time it take. After I close the both clamp like normal... Is it right? (I couldn't use that technic with sonic infusion core for the next one, it's just by curiosity)

Thank you again for your patience mates
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Matt (Staff)
Matt (Staff)
Matt (Staff)
posted 13 Years Ago HOT
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Do you think it's possible it came from the mould surface? Not enough smooth which let place for air between the mould and the carbone layer?


I don't think so. If your vacuum pump has pulled all the air out of the bag any gaps (even tiny gaps due to the texture of the surface) will simply be vacuum (i.e. no air), just space into which the resin can flow.

And excuse me Matt for repeating my answer but english is not my main language (so I hope you haven't difficulties to understand me ^^) so, during my infusion, if I see any bubbles (moving for extraction), I let the both vaccum and resin line open until I don't see them any more. It doesn't matter the time it take. After I close the both clamp like normal... Is it right? (I couldn't use that technic with sonic infusion core for the next one, it's just by curiosity)


Correct, you can keep the whole 'cycle' running for as long as you want to flush it through. We'd always hope to not need to do much of this because it wastes resin but if it helps to troubleshoot the cause of your problem then it's worth doing. Remember to close the resin feed line off first in this situation and let the bag pull down a bit before clamping off the vac line, otherwise you will have too much resin in the laminate.

I don't see any reason why this wouldn't work with Soric either.

--Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales
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