Some questions on my first resin infusion..!

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Some questions on my first resin infusion..!

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baja_patient	baja_patient posted 13 Years Ago HOT Topic Details
Group: Forum Members Posts: 135, Visits: 1.6K	Hi all, I have been working on a project for a fair while now, and I'm starting to see light at the end of the tunnel. As you can see in the attached pictures I started out with an unflanged mould in sight of using a wet lay-up technique. Due to wanting cosmetically perfect parts and after consultation from the EC staff I decided to go for resin infusion instead. I modified my moulds so there would be sufficient flange space by adding a frame and a high-gloss surface to ensure that I can pull 100% vac. I am just about ready to start my first infusion and would like a few tips. The first mould I want to do is 70x40cm and approx. 7cm deep at its deepest point. I am planning to use 2 layers 200g carbon cloth and 2 layers of approx 150g e-glass. Is this a good combination and how much IN2 resin will I need based on the information? There is breather material included in my starter pack and it is also mentioned in the instructions, yet not in the video. I assume I should be using it. One more question (i hope): Can the reinforcement be cut smaller than the edge of the mould, or does it have to be almost at the gum tape? I hope I've formulated myself correctly! Thanks alot. Fabian
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baja_patient	baja_patient posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 135, Visits: 1.6K	So, first things first, Easycomposites makes everything look so easy lol!!! Great instructions, videos and tips on the forum! Had the whole procedure learned and in my head. It was quite a challenge to lay the stack to my odd shaped mould. I applied easy lease and built the stack. My masking tape would hardly stick at all so I used gaffer tape on the infusion mesh. I hope that was okay. Regardless, I stuck the first bag, it was a tad small with the pleats, so I used another, plenty big enough. I am using the flow indicator vane, and after a pushing down on a couple bigger leaks I managed to pull full vac. The problem was, after the drop test i heard a tiny crackle here and there and lost a few marks on the gauge. Pushed and pushed hard all over the tape, checked the connectors, re-did one of the connectors and tried again and again, the gauge kept changing. I watched the gauge drop 1-1/2 marks over aprox 20 mins. Vane not moving at all. I checked the next morning and the bag was still quite tight and the gauge was at about 1/3 vac. I was quite frustrated, but happy I didn't infuse. There must be some tiny tiny leak somewhere, but I checked and checked and didn't hear any leaking, it is too small. Also I couldn't get it sealed. Are there any other methods to check where the leak is, smoke or something? Thing is I have a busy schedule and don't always manage to get to the workshop, but I reckon I will just use a new bag and new tape. I will measure my pleats and make the bag exactly bigger to accommodate them, so I don't have too much and wont have to worry about having too many wrinkles. Any tips on how to best put the bag down? Anyway, I got really excited to see it pulling vacuum first time, only to be set back. Oh well, I'm not going to give up after coming this far. cheers
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Some questions on my first resin infusion..!

baja_patient - 13 Years Ago

Hi, When all your fabric is cut to size, you need to weight it. Then, ideally, you would want 40%...

Joe - 13 Years Ago

Thanks alot Joe! It does help indeed. I am fairly new to infusion and still learning everything I...

baja_patient - 13 Years Ago

Honestly, I have no clue how much more resin you should mix. I really think it depends on your...

Joe - 13 Years Ago

So, first things first, Easycomposites makes everything look so easy lol!!! Great instructions,...

baja_patient - 13 Years Ago

Hi Baja, I'm not a composite expert at all, but i notice that you gum tape is not directly...

SebRS - 13 Years Ago

[quote][b]SebRS (04/05/2012)[/b][hr]Hi Baja, I'm not a composite expert at all, but i notice that...

baja_patient - 13 Years Ago

Hi, If your leak is too little to be noticed, what about wraping the whole mold in the vacuum bag?...

Joe - 13 Years Ago

Use this Guide to resin usage to work out how much you need to infuse.

Warren - 13 Years Ago

Thanks for the tips so far. Status update. I managed the infusion, didnt come out quite as expected...

baja_patient - 13 Years Ago

Just slow things down a bit in future. Leave the clamp loosely on the resin feed so you can nip it...

Warren - 13 Years Ago

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Some questions on my first resin infusion..!

Some questions on my first resin infusion..!

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