Thanks Guys! Totally had to learn this the hard way. I make a mold clean it out and pressure test that thing overnight.

Is there any way to get over the pain of throwing a seemingly good mold???  Because of a minor leak that just cant be found???

Or is there any way you suggest finding this type of leak?



If Brute Force Isn''''t working your not using enough...

Hi Warren,

I also struggle with this problem, may be degassing chamber will help

Hi Miro,

You're welcome. I'm glad to have been of service!

All the best, Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales

Hi Matt Thank you very very much. I did everything as you said, and as I saw the video and the result was perfect. Your board has helped me extremely. I wish you all the best. Have a nice day.

Hi Matt Thank you very very much. I did everything as you said, and as I saw the video and the result was perfect. Your board has helped me extremely. I wish you all the best. Have a nice day.

It really is most likely to be that you're not undertaking the infusion at 'full vacuum', if your vacuum pump cannot put 100% vacuum (-1 bar) then these pin holes will occur. A leaking bag can also be the cause of low vacuum and so you should make absoltely sure that you have a totally sealed bag (perform a leak-drop test for at least 30mins, maybe even a few hours to be sure).

You should also ensure that you leave the project slightly 'resin rich' by clamping off the vacuum line soon after clamping of the feed line.

Get these things right and there should be no reason for pin holes in your surface finish.

--Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales

Make sure temperature your working in is around 20c also degassing your resin makes huge difference,you can make your own chamber take your time and make sure you have no leaks,to combat leaks if parts not to large envelope your part,I have found flanges for infusion if not perfect can be a pain to seal if not impossible.

Hello, I am from Slovakia and I have a problem. Please advice. I tried to make a carbon fiber plate mirror finish with vacuum infusion process. I did everything like in your video on youtube but the whole surface of the mirror side, I have bubbles. Please help me where I made a mistake.
Sorry for writing to English via Google Translate. Tank you
Miroslav of Slovakia Bratislava

Did you already try with a resin impregnated syringue needle ? Cool addition to your Elise btw.

 



 


    A $1000 electronic device will always protect a 10 cents fuse

Bahhh, Im back. NOw I am working on this door pull part, I notied 3 little baby holes. these are so small but when I put my first coat of laquer on they just would not fill...

What the heck can I do to fill in a little hole like this without dripping resin and resanding?







If Brute Force Isn''''t working your not using enough...