Why do this happen?


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Golfer
Golfer
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Hello,

I'm making 2 B-Pillar for my car using the uni-mould system followed by laminating it.

The two moulds were made right without any issues.

Today I tried to laminate them, but when i'm going to put the first layer of resin, it happens that in some parts goes away.
I've used 4 layer of Easy lease.

http://www.talkcomposites.com/Uploads/Images/a30c550c-7f5a-4b17-a1ac-7b02.jpg

How can I avoid this?

Thank you very much
wojtepanik
wojtepanik
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It is normall, you don't have to worry if the holes are not really big,
Wojtek from Poland 

Ps . How do you make cf b pillars ? Show some pics !

~~~Everytime I hear sound of demoulding part I have eargasm~~~
Edited 12 Years Ago by wojtepanik
Warren (Staff)
Warren (Staff)
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It is quite common with very slippery release agents such as EasyLease that you get the fisheyeing effect on surfaces, especially sloped surfaces. You have to keep working it until it begins to thicken and gel and stays in place.

If you are really struggling, you can coat the mould in a layer of mould release wax on top of the EasyLease as it will then have a slightly less slippery surface and you will get less fisheyeing.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Golfer
Golfer
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Perfect! Will try to do it then! Wink

Thanks for your help!

For Wojtepanik, making of b pillars moulds for my Audi S3 it's quite easy, as there's a simpe cover on it Wink
Golfer
Golfer
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I've just demoulded my part, and this is what I've found.

What's that white thing under the resin?
Attachments
IMAG0457.jpg (274 views, 1.00 MB)
Edited 12 Years Ago by Golfer
Matthieu Libeert
Matthieu Libeert
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So you used a gelcoat? It can be moist maybe, causing some 'clouds' inbetween the layers...or brushmarks or contamination from your brush?!

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




TomDesign
TomDesign
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this looks for me like i had with carbon fiber and tryed to think it is bad mixing or something other but i found that it was not cleaned correctly as small not visible layer of wax was on top so it acted almost same. but also This can do moisture. try to use clean sheet to clean and use acetone , then use new brush. and notice that cleaning item do not have any wax and never used to client these surfaces as i was caught on this .
Golfer
Golfer
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All I used were new!
new sheets, new brush, new cup, everything!

the unique thing maybe I didnt were cleaning the mould after putting on the easy lease, but of course I did it before!
TomDesign
TomDesign
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then maybe something in in resin? maybe got moisture ? or was in cold place?
Warren (Staff)
Warren (Staff)
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My thoughts would be moisture too. Or perhaps too thick resin as it can appear slightly cloudy if the resin layer is thick and the fabric has lifted.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
GO

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