removing/stopping defects and strengthen/reinforcement of a part

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ARSOUILLERB26	ARSOUILLERB26 posted 13 Years Ago HOT Topic Details
Group: Forum Members Posts: 16, Visits: 122	Hello everybody, I contact you for a few problems about a carbon kevlar tray I ve made URL=http://imageshack.us/photo/my-images/707/40791410150587709709216.jpg/][/URL] My first problem is for me a real nightmare: tiny bubbles: I eliminated a lot them by using resin infusion (but not all of them) and using bristle roller but to have a perfect finish, I don't see any other way than to varnish (if there is an other possibility please let me know) So I would like to know how to make this perfectly, what products do you use (I didn't see them on your shop) and the application method to have a perfect gloss finish . For my second question, I've done this tray with 2 layers of carbon kevlar and with 2 of red traced carbon ^^ in the middle but it's too flexible specially on the flat part. I would like to know if it's possible for a next one to make it more stiff by putting a kevlar cross in the middle of the reinforcement layers Throughout the flat part and if it will be (for just one kevlar layer) visible on the exterior of the tray? Or if is it possible to make the tray for stiff by an other way (curing?) cheaper than to put 2 or 3 more carbon reinforcement layers. By advance, thank you for all your answers Edited 13 Years Ago by ARSOUILLERB26
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ARSOUILLERB26	ARSOUILLERB26 posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 16, Visits: 122	hello First, thank you for your answers I will try to be as accurate as possible. @warren yes, I was sure I didn't have any tiny leak because before to start the infusion, when I made the vaccum, once clamped, I waited 20/30min and the pressure mano didn't move. I verified with an ultrasonic detector: same result and 2 days after, just before to unmould: I saw the pressure level, it didn't change Yes I putted a infusion mesh lay up, I pulled at -0.8bar with the easy composites regulator (I saw many composites workers don't pull at full vaccum) but I didn't use a line clamp to partially reduce the resin flow. If it can help, I mixed too much resin to be safe and I clamped the resin entry very late (just before the resin started to go inside the catch pot) I'm really interrested about the core material, I'll try as soon as I can, is it only usable on flat part or on any form (for infusion) About curing, can it be done a long time after the lamination or just after? (this tray was made 2 weeks ago) @Joe Thank you very much Joe, happy to make you jealous ^^ do you enjoy this one? I read my description again and it was not very accurate, I made the tray with resin infusion. I talked about the bristle roller for hand laminate, a nice weapon versus tiny air bubbles ^^ @maverick I don't see what else informations you could need, but if you have any questions about my "technique", don't hesitate ^^ Anyway, nobody know what is the correct technique to make a good varnish now to erase that horribles air bubbles? varnishing I suppose but how and with what products? Thank you very much
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removing/stopping defects and strengthen/reinforcement of a part

ARSOUILLERB26 - 13 Years Ago

strange you have pin holes/bubbles in your surface. With infusion, if done correctly you should...

Warren - 13 Years Ago

Salut Arsouille, First, nice idea, I'm jealous, really :w00t: I noticed you said "I eliminated a...

Joe - 13 Years Ago

Yeah I think we need a little more info on how your making it to work out what going wrong... you...

MAVERICK - 13 Years Ago

hello First, thank you for your answers I will try to be as accurate as possible. @warren...

ARSOUILLERB26 - 13 Years Ago

If your only getting -0.8 bar you are not at full vac, follow the EC instructions/video! ABSOLUTE...

Kevin-Lee - 13 Years Ago

Hi, The full carbon one looks nice too... Thats great. And thx Kevin for additional informations...

Joe - 13 Years Ago

as said you need FULL vacuum on the guage. rather than clamping the feed as the resin gets to...

Warren - 13 Years Ago

Hi Arsouille, I think the advice you've received from our forum members in this thread is exactly...

Matt (Staff) - 13 Years Ago

the tray is something that could go with my dinner plates once i do another batch!! :w00t:...

Warren - 13 Years Ago

hi Firstly thank you very much for all your helpful answers !! For the carbon tray, I pulled...

ARSOUILLERB26 - 13 Years Ago

Go see: https://www.easycomposites.co.uk/resin-infusion-starter-kit#video 04:45. Step 8. Add an...

Kevin-Lee - 13 Years Ago

The bubbles have to be coming from somewhere. Have you done the leak drop test properly? perhaps for...

Warren - 13 Years Ago

Okay thank you, :) I gonna try an other infusion for applying all yours advices soon... blue...

ARSOUILLERB26 - 13 Years Ago

what kevin means is which side of your tray is the "shiney" side. Just take it slow and steady.

Warren - 13 Years Ago

Hi, Arsouille. Well I think i'll be jealous again then. Good luck for your project.

Joe - 13 Years Ago

Hi kevin, the peel ply side is the inferior, the glossy superior side is the gel coat side ;)...

ARSOUILLERB26 - 13 Years Ago

Muhaha it looks awesome, especially in the sun. With the summer coming, it will definitely be a...

Joe - 13 Years Ago

Hi Arsouille, That really is getting to be a very high quality looking product. I think yours are...

Matt (Staff) - 13 Years Ago

Isn't it air from the resin? Maybe a "cold" resin from which bubbles would have difficulties to flow...

Joe - 13 Years Ago

Id say try degassing the resin under vacuum before infusing it to elimate the possibility of it...

Warren - 13 Years Ago

Looks Fantastic mate! ...just those last few bubbles to sort out and I think you could have it...

Kevin-Lee - 13 Years Ago

Hey Joe, I think I'm not the only frenchy here, isn't it? :) When you want to share an "apéro"...

ARSOUILLERB26 - 13 Years Ago

[quote] Do you think it's possible it came from the mould surface? Not enough smooth which let...

Matt (Staff) - 13 Years Ago

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